IC DATA SHEET - penguin.czutx/zaurus/datasheets/power_switch/USB/tk738xxb … · TOKO, Inc. IC Data Sheet TK738xxB GC3-K019 Page 3 Description The TK738xx is an integrated circuit

TOKO, Inc. IC Data Sheet TK738xxB

GC3-K019 Page 1

IC DATA SHEET

9 Bump LDO Regulator with Programmable Current LimitsTK738xx B


GC3-K019 Page 2

Features････Peak Output current is 1000mA (VOUT 10% Down)････Very good stability (CL=1µF is stable for any type of capacitor with VOUT ≥ 2.5V)････Adjustable load current. (Rush current limitation function) The load current can be set by an external resistor.････Designed for battery backup applications.････Reverse current is 0 at off.････High voltage accuracy (2.0% or ±50mv)････Excellent ripple rejection ratio. (85dB at 1kHz, 65dB at 10kHz, 45dB at 100kHz)････Very low noise (60µV at Cfb=680pF)････Low dropout voltage with built-in PNP power transistors (170mV at 500mA load current)････Active High ON/OFF control････The output voltage is adjustable.････Built in internal thermal shutdown (Overheat protection)････Built in reverse bias protection.････Wide operating voltage range (2.4V ~ 13V)････Wide operating temperature range (Ta = -40°C ~ 85°C)････Very small size: 9 Bump Flip Chip (FC-9)

Note that the contents of this Data Sheet are subject to change or discontinuation without notice. When placing orders,please confirm specifications and delivery condition in writing.Even voltages not produced by output voltage table even if described.


GC3-K019 Page 3

Description

The TK738xx is an integrated circuit with a silicon monolithic bipolar structure. The regulator is of the

low saturation voltage output type with little quiescent current (310µA).

The load current is adjustable with the use of an external resistor. The resistor allows the detection and

setting of the load current without the low saturation characteristics of the regulator being sacrificed

because a high impedance resistor may be used.

The dropout voltage is 170mV @ 500mA , 280mV @ 800mA.

Line regulation is excellent

TK738xx is stable with an input and a load ceramic capacitor of 1µF.

The output noise level is 95µV over a bandwidth of 10Hz - 100kHz and the ripple rejection is

96dB/1kHz.

Load regulation is excellent and the settling time is minimal (10µs) making TK738xx a good choice

for circuits requiring short load transients and low noise.

TK738xx has active high ON/OFF control, a standby current of 0 and a reverse current (output to

input) of 0 when the regulator is turned OFF, an adjustable load current that is stable with 1µF ceramic

capacitors at input and output, and a high-speed load respondent making it excellent for USB.

Voltage code EX 3.3V:33 5.0V:50 Tape/Reel Code

Package Code

ORDERING INFORMATION

TKTKTKTK738738738738 B C BB C BB C BB C B


GC3-K019 Page 4

Absolute Maximum ratings

Items Symbol Limit UnitPower-supply voltage Vcc Max - 0.4 ~ 14 VReverse bias VrMax - 0.4 ~ 10 VControl terminal voltage VcontMax - 0.4 ~ 14 VStorage temperature range Tstg - 55 ~ 150 Range of operating voltage Vop 2.4 ~ 13 VRange of operating temperature Top -40 ~ 85 °C (Ta)Short-circuit current Ishort 1.10 AOverheat protection OHP 150 °C (Tj)Package loss

Power dissipation is when mounted on a PCB substrate. Pleas see Page 12

Exceeding the Absolute Maximum Rating may damage the device.The short circuit current is measured when the PCL terminal is connected to GND.Expected power dissipation is 1.1W or less when mounted on a PCB substrate. Instantaneous powerdissipation due to short circuit can reach 13W when the input voltage is 12V or more. This condition createsa very rapid temperature rise and may result in the chip catching on fire. When experimenting with this partplease note that there is no instantaneous short circuit protection if the input voltage is 12V or more and thePCL function is not being used. However, if the short-circuit current is set to 500mA or less by using the PCLfunction, nothing will be damaged because the maximum input power is limited even when the inputpotential is high.(If the input voltage goes up, the output current increases, or the ambient temperature rises the internalthermal shutdown sensor will protect the IC).

When the thermal sensor works, the regulator will shut off. As the junction temperature decreases, theregulator will begin to operate again. Under sustained fault conditions the regulator output will oscillate asthe device turns off then resets. Please improve heat radiation or lower the input electric power. When heatradiation is poor, the forecast package loss is not obtained.

Limits are guaranteed by production testing or correction techniques using Statistical Quality Control (SQC)methods. The operation (Ta=-40°C ~ 85°C) is guaranteed in the design by usual inspection.


GC3-K019 Page 5

Electrical Characteristics

Test condition: unless otherwise noted Vin-Bin are shorted together and Vout-Vsense are shorted together.Bold type is reference value at (Ta=-40°C ~ 85)

Electrical Characteristics Vtest=Vout typ+1.0V Iout =5mA (Ta 25°C)Items Symbol Min Typ Max Unit Condition

Supply Current 1 Icc 310 480500

µA Iout=0mA Except Icont

Maximum Output Current (Note 1)

Iout 0.8 1.00 A Vout 10% down

Output Voltage Vout ± 1.5% or ± 50mV Iout = 5mA(±±±± 2.5% or ±±±± 80mV)

Dropout Voltage Vdrop 30 70 mV Iout =30mADropout Voltage 1 (Note 1) Vdrop1 50 100 mV Iout =100mA

Dropout Voltage 2 (Note 1) Vdrop2 170 270 mV Iout =500mA

Dropout Voltage 3 (Note 1) Vdrop 280 550 mV Iout=800mA (2.6V≤Vout)

Line Regulation LinReg 0 5 mV ∆V=5V

Load Regulation LoaReg 1.5 3.0 mV 5mA<IL<30mA

Load Regulation 1 (Note 1) LoaReg1 45 mV 10mA<IL<500mA

Load Regulation 2 (Note 1) LoaReg2 45 mV 10mA<IL<800mA

Feed-back Terminal Voltage Vfb 1.21 V

GND Pin Current Ignd 0.7 1.2 mA Iout=30mA

Reverse Bias Current at off time Irev 0.5 µA Vin=0 Vrev=10V off state

Programmable Current Limit Range PCL 0.1 Ishort APCL Set Error Margin 15 20 % at Iout 500mAControl Terminal Current Icont 5 8

15µA Vcont=1.8V ON State

Control Terminal Voltage ON Vcont on1.8

1.3 V ON State (Note 2)

Control Terminal Voltage OFF Vcont off 1.20.6

OFF State (Note 2)

Standby Current Istandby 0.11

µA Vcc=8V, Vcont≤0.15V OFF State

Vout/Temperature Coefficient Vout/Ta Typ=80ppm / °C Reference Value

Note 1. Flip Chip product cannot be inspected at high current. During manufacturing, the part is not inspected above a 30mA load.Operation above 30mA is guaranteed by design.

Note 2. The control terminal voltage (The temperature change when IC operates is considered) recommends the value of -40-+85 to be used.

General Note. Limits are guaranteed by production testing or correction techniques using Statistical Quality Control (SQC) methods.Unless otherwise noted. Vtest =Vout typ+1.0V Iout=5mA (Ta=25) The operation of -40°C ~ +85°C is guaranteed in thedesign by usual inspection.

General Note. Ripple rejection ratio is about 86dB. [CL=10µF, Vnoise=100mVRMS, Vin=Vout typ+1.5v, Iout=100mA] at 1kHz.General Note. Parameters with only typical values are just reference. (Not guaranteed)


GC3-K019 Page 6

Pin Layout

Test circuit

FC-9

Vin

Load

On/off.

V

Vcont

CL=1.0µFCin=1.0µF

A Icont

Block diagram

Top viewCin=CL=1µF ceramic capacitor (VOUT ≥ 2.0V)

GND

Vsen

ControlCircuit

500k

Band gapReference

PCL

Over Heat Protect

DisconnectCircuit

Vfb

Vin Vout Bin

Cont.

Top view

A3 B3 C3

A2

A1

B2

B1

C2

C1

A1 : on/off Cont.A2 : BinA3 : VinB1 : PCLB2 : N.C.B3 : GNDC1 : VfbC2 : VsenseC3 : Vout

FC-9 ( 1.80 × 1.80 × 0.60 )


GC3-K019 Page 7

Basic application

1) The input current and the output reverse current become 0 in standby mode. (The Input and Outputimpedance rise.)

2) The IC is in the ON state when the control terminal is pulled high.3) The Input and Output capacitors must be ceramic capacitors of 1µF or greater for stability. (VOUT≥2.0V)4) We recommend adding a 5mA-IOUT,MAX load current when using a rapidly changing digital load.5) Please enlarge the input and output capacitors when a repeated high-speed fluctuation of the load is

expected. It is especially important to enlarge the input capacitor when the input power source impedanceis high.

6) If the load is pulsing, additional care must be taken when designing with small ceramic capacitorsbecause the actual capacitance value may be greatly affected (as much as halved) by the changing biasvoltage across it.

Stable Operating Area

The standard value of the output capacitor is 1µF.Please use tantalum and electrolytic capacitors in parallel withthe ceramic capacitor of 1µF when you want to increase thecapacitance to improve the load transient characteristics anddecrease the noise.The placement of the additional capacitors is not critical if the1µF capacitor is close to the IC.Increasing the output capacitor in this manner even by asignificant amount will not negatively effect the operation of theIC.

GND

BandGap

Reference

Over Heat Protect

DisconnectCircuit

VfbCL=1µF

Cont.

ControlCircuit

VsenVoutVin Bin

PCL

Cin=1µF

0.01

IOUT (mA)

ESR

(Ω)

0.1

1

10

100

0 200 400 600 800

Stable OperatingArea

Unstable Area


GC3-K019 Page 8

The output voltage is raised a little when R11 is added.

The output voltage is lowered a little when R12 is added.

Attention:Adding R12 increases the voltage error margin (it gets worse) because the temperature characteristics of the internaland external resistors are different.

The power output noise is lowered when C is added.

TK738xx is a low noise part (95µV for 3Vpart). In addition, the noise can be decreased by adding C. It ispossible to decrease the noise from 95µV to 55µV (for the 3Vpart). Increase the input and output capacitors forapplications that require low noise. The regulator is an active element. Therefore, noise may be generated by it,especially a circuit that is very sensitive to noise. Our recommendation is to add a filter made with passivecomponents to help control the noise. Please verify noise susceptibility of actual circuit.

Over Heat Protect

DisconnectCircuit

BandGap

ControlCircuit

CL=1.0µF

Vin

Vfb

Cont.

VsenVout Bin

GND

R12

PCL

Over Heat Protect

DisconnectCircuit

Bandgap

ControlCircuit

CL=1.0μF

Vin

Vfb

Cont.

VsenVout Bin

GND

CCCC

PCL

Over Heat Protect

DisconnectCircuit

Bandgap

ControlCircuit

CL=1.0µF

Vin

Vfb

Cont.

VsenVout Bin

PCL GND

R11


GC3-K019 Page 9

Change output-current limitation value (rush current limitation function)The output current can be limited using the PCL terminal. Changing the value of RPCL changes the output current limit. Thiscan be accomplished with R1, R2 and a transistor.

When the PCL terminal is connected with GND,the output current is not externally limited.

TK738xxB Iset vs RPCL

If a USB Host or Hub needs to supply power to a USB device, it should meet the following regulations: Input capacitance of the USBdevice should be less than 10µF. Initial current supplied by the Host or Hub should be less than 100mA.If the USB controller recognizes that the connected USB device can handle more current, it should be capable of supplying up to500mA. TK738xx with its PCL function allows the designer the ability to meet these regulations.

Fixed current value changeH：500mAL：100mA

Over Heat Protect

DisconnectCircuit

BandGap

ControlCircuit

CL=1.0µF

Vin

Vfb

Cont.

VsenVout Bin

GND

R1R1R1R1

R2R2R2R2

PCL

Cin=1µF

The output current (rush current) is limited by setting RPCL.A：IoutMax 90% decrease point of normal output voltageB：Ishort 0% point of normal output voltage

LoadCurrent

A

B

Vou t

Iout

Vin Vout

GND

Cont PCLCL

RPCL

0

100

200

300

400

500

600

700

800

0 2k 4k 6k 8k 10k 12k 14k 16k

RPCL (ohm)

Iout (mA)

Vout=5.0V

Vout=1.5V

Iout Max

0

100

200

300

400

500

600

700

800

0 2k 4k 6k 8k 10k 12k 14k 16k

RPCL (ohm)

Iout(mA)

Vout=5.0V

Vout=1.5V

Ishort


GC3-K019 Page 10

Soft-start application

The output voltages rise time is dominated by the time it takes to charge CL. The rise time increases when theoutput current (CL charging current) is decreased and CL is increased. Therefore, adjusting the output current andthe output capacitive load, CL, will adjust the rise time. The output current is adjusted by the PCL function. Toadjust the soft-start, set the output current (PCL function by RPCL) slightly larger than the maximum output currentneeded for your application then adjust the rise time by changing the CL capacitance. It is best to do this by trialand error with the actual circuit to be used in your final design.

TK73840 on/off transient :CL and RPCL dependence characteristic :500mA/Div 50µS/Div

CL=1 , 4.7 , 10µF Changed RPCL. RPCL =0(Max) , 47Ω(1A) , 1.6kΩ(0.5A) , 3.3kΩ(0.25A) , 11kΩ(0.1A)

CL=1µF､ CL=4.7µF, CL=10µF

Rpcl=0Ω (Io=Max) Rpcl=1.6kΩ (Io=500mA)

RPCLSet of Load

Over Heat Protect

DisconnectCircuit

Bandgap

ControlCircuit

CL=**µF

Vin

VfbCont.

VsenVout Bin

GND PCL

Cin=1µFLoad

Rpcl=0 , 47 , 1.6k , 3.3k , 11k Rpcl=0 , 47 , 1.6k , 3.3k , 11k Rpcl=0 , 47 , 1.6k , 3.3k , 11k

CL=1 , 4.7 , 10µF CL=1 , 4.7 , 10µF


GC3-K019 Page 11

Strengthening of battery backup function

If the control function is used (Control pin is not tied to VIN), Sdi is not needed. Even if a battery with aremaining charge is connected to the output and the input voltage is low or open, there will be no reverse current.The IC will remain in the OFF condition.However, if the control function is not used (Control pin is tied to VIN), Sdi is strongly recommended. If abattery with a remaining charge is connected to the output and the input side is low or open, due tocharacteristics of the main PNP transistor, output voltage will appear on the input side. The IC cannot turn off.Therefore, the output capacitor will discharge. Under these conditions it is recommended that Sdi be addedbetween VOUT and VSENSE. Reverse current will be minimized and the VOUT voltage will remain.TK738xx is excellently suited for Li battery charging applications. To help prevent damage due to accidentalremoval of the power source while charging it is recommended that Sdi be added.It is not possible to protect against all abnormal conditions.

Application for Li Battery charger

Sdi

Voltage switchHigh: Initial Charge voltageLow: Full charge voltage

USB , AC adapter

Over Heat Protect

DisconnectCircuit

BandGap

ControlCircuit

CL=1.0µF

Vin

Vfb

Cont.

VsenVout Bin

GND PCL

Current switch Low: Initial charge / Iout: Small High: Full Charge / Iout: Large

Over Heat Protect

DisconnectCircuit

BandGap

ControlCircuit

CL=1.0µF

Vin

Vfb

Cont.

VsenVout Bin

GND

Sdi

PCL

IrevIrevIrevIrev

Backup battery orLi chargeable battery


GC3-K019 Page 12

Low voltage performance characteristicWhen Terminal(Vout-Vsense-Vfb)is connected, Vout becomes 1.21V. Please enlarge CL this time.

A minimum voltage of the operation guarantee is 2.4V.The output characteristic becomes the characteristic of the figure below in operating voltage less than it.

Set vout=1.21VVin=1.6V ~ 2.4V (0.1V Step)

0.80

0.85

0.90

0.95

1.00

1.05

1.10

1.15

1.20

1.25

1.30

0 100 200 300 400 500 600Iout(mA)

Vout

(V)

Vin=1.6V

1.7V

1.8V

1.9V2.0V

Vin=2.1V、2.2V, 2.3V ,2.4V

GND

BandgapReference

Over Heat Protect

DisconnectCircuit

VfbCL=2.2µF

Cont.

ControlCircuit

VsenVoutVin Bin

PCL

Cin=1µF


GC3-K019 Page 13

Mount board Two sided of glass epoxy substrate 30mm × 30mm × 1.0mm

PCL is typically connected to GND.Connect a resistor between the PCL terminal and GND to limit the current.R11: The voltage is raised.R12: The voltage is lowered.The temperature characteristic of the IC deteriorates when the voltage is greatly changed.

When the above-mentioned substrate is used. Pd ≈ 1100mW θja=136°C/W Ta=25°C

Heat radiation is accomplished by installingthe IC to a substrate.The heat radiation level changes according tothe substrate material.A circuit design that maximizes heat radiationthrough the copper pattern is recommended.Maximizing the conductive pattern under thechip when a multi-layer substrate is used,seems to improve heat radiation.

Top View

GND

Bin

GND

Vin

Cont

GND

Vout

GND

Vsence

Vfb

PCL

1µFFFF

R12

R11

25 50 75 100 125 150

1100

Ta (°C)

Pd(m

W)


GC3-K019 Page 14

AC characteristics DATA

Ripple Rejection Vin=Vout+1V,Vripple=200mVp-p,Cin=0,CL=1µF(Ceramic) ANRITSU MS4630

Output noise Vout=3V Iout=10mA ﾄﾞﾊﾞｯｸｺﾝﾃﾞﾝｻｰ有り Cfb=0.001µF

0.01

0.1

1

10

10 100 1k 10k 100kFrequency(Hz)

V/√

Hz

0.01

0.1

1

10

10 100 1k 10k 100kFrequency(Hz)

V/√

Hz

73840 Iout=100mA0

-50

-100 1k1k1k1k 1M100k

Frequency (Hz)

R.R.(dB)

73818 Iout=100mA

0

-50

-100 1k 1M100k

Frequency (Hz)Frequency (Hz)Frequency (Hz)Frequency (Hz)

R.R.(dB)

TK73840B　Output Noise

0102030405060708090

100110120130140150

0 100 200 300 400 500 600Iout(mA)

Noi

se( µV

rms)

There is Cfb.

TK73818B　Output Noise

0102030405060708090

100110120130140150

0 100 200 300 400 500 600Iout(mA)

Noi

se( µV

rms)

There is Cfb.

No feedback cap With feedback cap


GC3-K019 Page 15

Transient characteristics TK73840 Cin=CL=1µF(Ceramic Cap)

on/off Transient Line Transient

Load Transient

The output load transient characteristics can be greatly improved by adding a small load current toground.

It was increased rapidly from no-load toIout=100mA and 500mA.

It has been rapidly decreased fromIout=100mA and 500mA to no-load.

It was increased rapidly from no-load to Iout=100mAand 500mA.

It has been rapidly decreased from Iout=100mAand 500mA to no-load.


GC3-K019 Page 16

DC characteristics DATAIQ vs Vin (Iout=0mA)

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

0 2 4 6 8 10 12 14 16 18 20Vin(V)

IQ(m

A)

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

Vout

(V)

Vout

IQ

Line Reg

0.00

1.00

2.00

3.00

4.00

5.00

6.00

0 2 4 6 8 10 12 14 16 18 20Vin(V)

Vout

(V)

Vout vs Vin

3.90

3.92

3.94

3.96

3.98

4.00

4.02

4.04

4.06

4.08

4.10

3.8 3.9 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8

Vin(V)

Vout

(V)

Iout=0mA~500mA(100mA Step)

Iout=0mA

Iout=500mA

Vdrop(0-1200m)

-500

-400

-300

-200

-100

0

0 200 400 600 800 1000 1200

Iout(mA)

Vdro

p(m

V)

LoadReg , Ignd (0-600mA)

0

2

4

6

8

10

12

14

16

18

20

0 100 200 300 400 500 600

Iout(mA)

Ignd

(mA

)

3.97

3.98

3.99

4.00

4.01

4.02V

out(

V)

Vout

Ignd

Load Reg

0

1

2

3

4

5

0 200 400 600 800 1000 1200

Iout(mA)

Vout

(V)


GC3-K019 Page 17

Temperature characteristics

Reverse current

1.E-12

1.E-11

1.E-10

1.E-09

1.E-08

1.E-07

1.E-06

1.E-05

0 2 4 6 8 10 12 14 16 18 20

Vrev(V)

Irev

(A)

Dropout voltage (0-600mA)

-200

-180

-160

-140

-120

-100

-80

-60

-40

-20

0

0 100 200 300 400 500 600Iout(mA)

Vdr

op(m

V)

Vout ON-Point

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0

Vcont(V)

Icon

t( μA

)

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

Vout

(V)

VoutIcont

Standby current

1p

10p

100p

1n

10n

100n

1u

10u

0 5 10 15 20

Vin(V)

ISta

nby(

A)

0

50

100

150

200

250

-50 -25 0 25 50 75 100Ta(°C)

Vdrop(mV) Iout=50mA Iout=100mA

Iout=200mA Iout=300mA

Iout=400mA

Drop out voltage

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

-50 -25 0 25 50 75 100Ta(°C)

IPCL(mA) Iout=50mA Iout=100mA

Iout=200mA Iout=300mA

Iout=400mA

Programmable current limit(PCL)


GC3-K019 Page 18

ｺﾝﾄﾛｰﾙ電圧 on/off ﾎﾟｲﾝﾄ

Output voltage

0.00.20.40.60.81.01.21.41.61.82.0

-50 -25 0 25 50 75 100Ta(°C)

Vcont(V)

Vout_ON

Vout_OFF

Control terminal

Please use as wide a range between the ON and OFFvoltages when switching the IC On and OFF.For instance, the voltage of 2V or more (for ON) andthe voltage of 0.4V or less (for OFF) arerecommended when considering the operation of theIC over temperature.If a small range between ON and OFF voltages areused the IC may become unstable.The hysteresis comparator is not used for thisterminal.

-35.0-30.0-25.0-20.0-15.0-10.0

-5.00.05.0

10.015.020.0

-50 -25 0 25 50 75 100Ta(°C)

Vout(mV) TK73850

-35.0-30.0-25.0-20.0-15.0-10.0

-5.00.05.0

10.015.020.0

-50 -25 0 25 50 75 100Ta(°C)

Vout(mV)TK73825

-35.0-30.0-25.0-20.0-15.0-10.0

-5.00.05.0

10.015.020.0

-50 -25 0 25 50 75 100Ta(°C)

Vout(mV) TK73840

-35.0-30.0-25.0-20.0-15.0-10.0

-5.00.05.0

10.015.020.0

-50 -25 0 25 50 75 100Ta(°C)

Vout(mV)TK73818


GC3-K019 Page 19

TK738xxB Package Outline

3. Externals composition and various articlesmaterial :Si mark:LaserBump Sn-2.5Ag origin :Japan

0.5

0.5

Reference Mount Pad

9-Φ0.275～0.3

0.60±0.05

0.220±0.015

Mark

A1 Pin Mark

1.8±0.05

0.5

1.8±0.05

0.5

A

1

2

3

BC

0.30-9Φ±0.01 Φ0.05 M


GC3-K019 Page 20

4.0

2.0

8.0

1.75

3.5

1.904.0

5.5

1.5 0

±0.1

±0.05 +0.1

±0.3

±0.1

±0.0

5

±0.1

1.90

1.00.25

180

0

600

11.4

212.0

13

9.0 ±0.3

-0.3

+0.1

±1.0

±0.8±0.5

±0.2

Product number: TK738xxB1. Emboss career tape

Material: Polystyrene + carbonPerformance: Electro conductive

(unit mm)

2. Reel

Material: Polystyrene + carbonPerformance: Electro conductive

(unit mm)

3. Directions of parts

[ Toko, Inc. part direction sign: B type ]

This is located for the direction of drawingout behind one pin mark.

4. Packing amount3000 parts a reel are packed.

V OUT V CODE V OUT V CODE V OUT V CODE V OUT V CODE1.5 v 15 2.5 v 25 3.5 v 35 4.5 v 451.6 16 2.6 26 3.6 36 4.6 461.7 17 2.7 27 3.7 37 4.7 471.8 18 2.8 28 3.8 38 4.8 481.9 19 2.9 29 3.9 39 4.9 492.0 20 3.0 30 4.0 40 5.0 502.1 21 3.1 31 4.1 412.2 22 3.2 32 4.2 422.3 23 3.3 33 4.3 432.4 24 3.4 34 4.4 44The output voltage table indicates the standard value when manufactured.Please contact your authorized Toko representative for voltage availability

direction

1pin mark


GC3-K019 Page 21

NOTENOTENOTENOTE

Please be sure that you carefully discuss your planned purchase with our office if you intend to use the products in thisdata sheet under conditions where particularly extreme standards of reliability are required, or if you intend to useproducts for applications other than those listed in this data sheet.! Power drive products for automobile, ship or aircraft transport systems; steering and navigation systems,emergency signal communications systems, and any system other than those mentioned above which includeelectronic sensors, measuring, or display devices, and which could cause major damage to life, limb or property ifmisused or failure to function.! Medical devices for measuring blood pressure, pulse, etc., treatment units such as coronary pacemakers and heattreatment units, and devices such as artificial organs and artificial limb systems which augment physiologicalfunctions.! Electrical instruments, equipment or systems used in disaster or crime prevention.

" Semiconductors, by nature, may fail or malfunction in spite of our devotion to improve product quality andreliability. We urge you to take every possible precaution against physical injuries, fire or other damages whichmay cause failure of our semiconductor products by taking appropriate measures, including a reasonable safetymargin, malfunction preventive practices and fire-proofing when designing your products.

" This data sheet is effective from May 2004. Note that the contents are subject to change or discontinuation withoutnotice. When placing orders, please confirm specifications and delivery condition in writing.

" TOKO is not responsible for any problems nor for any infringement of third party patents or any other intellectualproperty rights that may arise from the use or method of use of the products listed in this data sheet. Moreover, thisdata sheet does not signify that TOKO agrees implicitly or explicitly to license any patent rights or otherintellectual property rights which it holds.

" None of ozone depleting substances(ODS) under the Montreal Protocol is used in manufacturing process of us.

If you need more information on this product and other TOKO products, please contact us.

OFFICE " TOKO Inc. Headquarters1-17, Higashi-yukigaya 2-chome, Ohta-ku, Tokyo,145-8585, Japan

TEL: +81.3.3727.1161FAX: +81.3.3727.1176 or +81.3.3727.1169Web site: http://www.toko.co.jp/

" TOKO AmericaWeb site: http://www.toko.com/" TOKO EuropeWeb site: http://www.tokoeurope.com/" TOKO Hong KongWeb site: http://www.toko.com.hk/" TOKO TaiwanWeb site: http://www.tokohc.com.tw/

" TOKO SingaporeWeb site: http://www.toko.com.sg/" TOKO SeoulWeb site: http://www.toko.co.kr/" TOKO ManilaWeb site: http://www.toko.com.ph/" TOKO BrazilWeb site: http://www.toko.com.br/

IC DATA SHEET - penguin.czutx/zaurus/datasheets/power_switch/USB/tk738xxb … · TOKO, Inc. IC Data Sheet TK738xxB GC3-K019 Page 3 Description The TK738xx is an integrated circuit

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