TPS77401-EP datasheet(6/23 Pages) TI1

Part #	TPS77401-EP

Description	250-mA LDO VOLTAGE REGULATOR WITH POWER-GOOD OUTPUT

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Manufacturer	TI1 [Texas Instruments]

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Line regulation (mV)

+ % V

V

O

V

I(max) *

2.7 V

100

1000

Line regulation (mV)

+ % V

V

O

V

I(max) *

V

O )

1

100

1000

Electrical Characteristics

TPS77401-EP

250-mA LDO VOLTAGE REGULATOR

WITH POWER-GOOD OUTPUT

SLVS702 – OCTOBER 2006

over recommended operating junction temperature range (T

J = –55°C to 125°C), VI = VO(typ) + 1 V, IO = 1 mA, EN = 0 V,

C

O = 10 µF (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

TJ = 125°C

0.98VO

1.02VO

Adjustable voltage

1.5 V

≤ V

O ≤ 5.5 V

V

TJ = Full range

0.977VO

1.023VO

TJ = 25°C,

2.7 V < VIN < 10 V

1.5

1.5-V output

V

2.7 V < VIN < 10 V

1.470

1.530

TJ = 25°C,

2.8 V < VIN < 10 V

1.8

1.8-V output

2.8 V < VIN < 10 V

1.764

1.836

TJ = 25°C,

3.7 V < VIN < 10 V

2.7

Output voltage(1)(2)

2.7-V output

3.7 V < VIN < 10 V

2.646

2.754

V

TJ = 25°C,

3.8 V < VIN < 10 V

2.8

2.8-V output

3.8 V < VIN < 10 V

2.744

2.856

TJ = 25°C,

4.3 V < VIN < 10 V

3.3

3.3-V output

4.3 V < VIN < 10 V

3.234

3.366

TJ = 25°C,

6 V < VIN < 10 V

5.0

5-V output

V

6.0 V < VIN < 10 V

4.9

5.1

TJ = 25°C

92

Quiescent current (GND current)(1)(2)

µA

TJ = Full range

135

VO + 1 V < VI ≤ 10 V,

TJ = 25°C

0.005

%/V

Output voltage line regulation (

∆V

O/VO)

(3)

VO + 1 V < VI ≤ 10 V

0.05

%/V

Load regulation

TJ = 25°C

1

mV

BW = 300 Hz to 100

Output noise voltage

TJ = 25°C

55

µVrms

kHz,

Output current limit

VO = 0 V

0.9

1.3

A

Peak output current

2 ms pulse width,

50% duty cycle

400

mA

Thermal shutdown junction temperature

144

°C

TJ = 25°C

1

Standby current

EN = VI

µA

TJ = Full range

3

FB input current

Adjustable voltage

FB = 1.5 V

1

µA

High-level enable input voltage

2

V

Low-level enable input voltage

0.7

V

Enable input current

–1

1

µA

PSRR

Power-supply rejection ratio

f = 1 kHz,

TJ = 25°C

55

dB

Minimum input voltage for valid PG

I(PG) = 300 µA,

V(PG) ≤ 0.8 V

1.1

V

Trip threshold voltage

VO decreasing

79

85

%VO

PG

Hysteresis voltage

Measured at VO

0.5

Output low voltage

VI = 2.7 V,

I(PG) = 1 mA

0.15

0.4

V

Leakage current

V(PG) = 5 V

1

µA

(1)

Minimum input operating voltage is 2.7 V or VO(typ) + 1 V, whichever is greater. Maximum input voltage = 10 V, minimum output current

1 mA.

(2)

IO = 1 mA to 250 mA

(3)

If VO < 1.8 V, then VI(max) = 10 V, VI(min) = 2.7 V:

If VO > 2.5 V, then VI(max) = 10 V, VI(min) = VO + 1 V:

6

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