T5L1.2F datasheet(6/17 Pages) TOSHIBA

Part #	T5L1.2F

Description	Step-down DC-DC Converter IC

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Manufacturer	TOSHIBA [Toshiba Semiconductor]

Direct Link	http://www.semicon.toshiba.co.jp/eng

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TB7101F(T5L1.2,F) , TB7101F(T5L1.5,F)

TB7101F(T5L1.8,F) , TB7101F(T5L2.5,F)

TB7101F(T5L3.3,F)

2007-09-06

6

Electrical Characteristics (unless otherwise specified: Tj = 25

°C and VIN = 2.7 to 5.5 V)

●

TB7101F(T5L1.5,F)

Characteristics

Symbol

Test

circuit

Test condition

Min

Typ.

Max

Unit

Operating supply voltage

VIN(OPR)

-

2.7

-

5.5

V

IIN(1)

-

VIN= 5V, VEN= 5V, VOUT= 5V

-

0.68

0.9

mA

Operating current

IIN(2)

-

VIN= 2.7V, VEN= 2.7V,

VOUT =2.7V

-

0.55

0.69

mA

Standby current

IIN(STBY)

-

VIN= 5V, VEN= 0V,VOUT= 0V

-

1

μA

VIH(EN)(1)

-

VIN= 5V

3.5

-

V

VIH(EN)(2)

-

VIN= 2.7V

1.89

-

V

VIL(EN)(1)

-

VIN= 5V

-

1.5

V

Enable pin threshold voltage

VIL(EN)(2)

-

VIN= 2.7V

-

0.81

V

IIH(EN)(1)

-

VIN= 5V, VEN= 5V

7.6

-

12.4

μA

Enable pin input current

IIH(EN)(2)

-

VIN= 2.7V, VEN= 2.7V

4.1

-

6.7

μA

VOUT(1)

-

VIN= 5V, VEN= 5V

IOUT=100mA

1.455

1.5

1.545

V

Output voltage

VOUT(2)

-

VIN=2.7V, VEN= 2.7V,

IOUT=100mA

1.455

1.5

1.545

V

Line regulation

LINE REG

-

VIN= VEN= 2.7V～5.5V

IOUT=100mA

-

18

mV

Load regulation

LOAD REG

-

VIN=5V

IOUT= 100mA～500mA

-

18

mV

High-side on-state resistance

RDS(ON)(H)

-

VIN= 5V, VEN= 5V, ILX= 0.5A

-

0.27

-

Ω

Low-side on-state resistance

RDS(ON)(L)

-

VIN= 5V, VEN= 5V, ILX= 0.5A

-

0.27

-

Ω

High-side leakage current

ILEAK(H)

-

VIN= 5V, VEN= 0V, VLX= 0V

-

1

μA

Low-side leakage current

ILEAK(L)

-

VIN= 5V, VEN= 0V, VLX= 5V

-

1

μA

fOSC(1)

-

VIN= 5V, VEN= 5V

0.85

1

1.15

MHz

Oscillation frequency

fOSC(2)

-

VIN= 2.7V, VEN= 2.7V

0.85

1

1.15

MHz

tss(1)

-

VIN=5V , VEN=5V, (no load)

1

2

-

ms

Soft start time

tss(2)

-

VIN= 2.7V, VEN= 2.7V, (no load)

1.4

2.4

-

ms

Detection

VUV

-

2.2

2.5

2.7

V

Undervoltage

protection

Hysteresis

ΔVUV

-

0.1

-

V

Protection function (reference data)

●

TB7101F(T5L1.5,F)

Detection

TSD

-

160

-

oC

Overheat

protection

Hysteresis

ΔTSD

-

20

-

oC

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