TPS70918DBVT datasheet(3/11 Pages) TI1

Part #	TPS70918DBVT

Description	150-mA, 30-V, UltraLow IQ, Low-Dropout Regulators with Enable

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Manufacturer	TI1 [Texas Instruments]

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TPS709xx

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SBVS186 – MARCH 2012

ELECTRICAL CHARACTERISTICS

At TA = –40°C to +85°C, VIN = VOUT (typ) + 1 V or 2.5 V (whichever is greater), IOUT = 1 mA, VEN = 2 V, and CIN = COUT = 2.2-μF

ceramic, unless otherwise noted. Typical values are at TA = +25°C.

TPS709xx

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VIN

Input voltage range

2.5

28

V

VOUT

Output voltage range

1.5

6.5

V

VO

DC output accuracy

–2

2

%

ΔVO/ΔVIN

Line regulation

VOUT(NOM) + 1 V, 2.5 V ≤ VIN ≤ 24 V

10

15

mV

ΔVO/ΔIOUT

Load regulation

0 mA

≤ IOUT ≤ 150 mA

20

50

mV

IOUT = 150 mA

800

1650

mV

VDO

Dropout voltage(1)

IOUT = 50 mA

300

650

mV

ICL

Output current limit

VOUT = 0.9 × VOUT(NOM)

260

300

400

mA

IOUT = 0 mA

1

1.8

μA

IGND

Ground pin current

IOUT = 100 mA

150

μA

IOUT = 150 mA

300

μA

ISHUTDOWN

Shutdown pin current

VEN ≤ 0.4 V, VIN = 2.0 V

150

nA

f = 10 Hz

85

dB

PSRR

Power-supply rejection ratio

f = 100 Hz

70

dB

f = 1 kHz

52

dB

BW = 100 Hz to 100 kHz, IOUT = 10 mA,

VN

Output noise voltage

300

μVRMS

VIN = 2.3 V, VOUT = 1.8 V

tSTR

Startup time(2)

150

μs

VEN(HI)

Enable pin high (enabled)

0.9

5.5

V

VEN(HI)

Enable pin high (disabled)

0

0.4

V

IEN

EN pin current

EN = 5.5 V, IOUT = 10 µA

5

nA

Shutdown, temperature increasing

+160

°C

Thermal shutdown

tSD

temperature

Reset, temperature decreasing

+140

°C

Operating junction

TJ

–40

+125

°C

temperature

(1)

VDO is measured for devices with VIN = 0.98 × VOUT(NOM).

(2)

Startup time = time from EN assertion to 0.95 × VOUT(NOM).

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