TPS73618-Q1 datasheet(4/21 Pages) TI1

Part #	TPS73618-Q1

Description	Capacitance-Free NMOS 400-mA Low-Dropout Regulator

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Manufacturer	TI1 [Texas Instruments]

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TPS736xx-Q1

SLVSC36 – JUNE 2013

www.ti.com

ELECTRICAL CHARACTERISTICS

Over operating temperature range (TA = –40°C to +125°C), VIN = VOUT(nom) + 0.5 V

(1), I

OUT = 10 mA, VEN = 1.7 V, and

COUT = 0.1 μF, unless otherwise noted. Typical values are at TA = +25°C.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VIN

Input voltage range(1)(2)

1.7

5.5

V

VREF

Internal reference

TA = +25°C

1.198

1.2

1.21

V

Nominal

TA = +25°C

–0.5

+0.5

VOUT

Accuracy(1)(3)

%

over VIN, IOUT,

VOUT + 0.5 V ≤ VIN ≤ 5.5 V;

–1

±0.5

+1

and T

10 mA

≤ IOUT ≤ 400 mA

ΔVOUT%/ΔVIN

Line regulation

VO(nom) + 0.5 V ≤ VIN ≤ 5.5 V

0.01

%/V

1 mA

≤ IOUT ≤ 400 mA

0.002

ΔVOUT%/ΔIOUT Load regulation

%/mA

10 mA

≤ IOUT ≤ 400 mA

0.0005

Dropout voltage

VDO

IOUT = 400 mA

75

200

mV

(VIN = VOUT(nom) – 0.1 V)

ZO(DO)

Output impedance in dropout

1.7 V

≤ VIN ≤ VOUT + VDO

0.25

Ω

VOUT = 0.9 × VOUT(nom)

400

650

800

mA

ICL

Output current limit

3.6 V

≤ VIN ≤ 4.2 V, 0°C ≤ TA ≤ +70°C

500

800

mA

ISC

Short-circuit current

VOUT = 0 V

450

mA

IREV

Reverse leakage current(4) (–IIN)

VEN ≤ 0.5 V, 0 V ≤ VIN ≤ VOUT

0.1

10

μA

IOUT = 10 mA (IQ)

400

550

IGND

GND pin current

μA

IOUT = 400 mA

800

1000

VEN ≤ 0.5 V, VOUT ≤ VIN ≤ 5.5,

ISHDN

Shutdown current (IGND)

0.02

1

μA

–40°C

≤ TJ ≤ +100°C

f = 100 Hz, IOUT = 400 mA

58

Power-supply rejection ratio

PSRR

dB

(ripple rejection)

f = 10 kHz, IOUT = 400 mA

37

COUT = 10 μF, No CNR

27 × VOUT

Output noise voltage

VN

μVRMS

BW = 10 Hz – 100 kHz

COUT = 10 μF, CNR = 0.01 μF

8.5 × VOUT

VOUT = 3 V, RL = 30 Ω COUT = 1 μF,

tSTR

Startup time

600

μs

CNR = 0.01 μF

VEN(HI)

EN pin high (enabled)

1.7

VIN

V

VEN(LO)

EN pin low (shutdown)

0

0.5

V

IEN(HI)

EN pin current (enabled)

VEN = 5.5 V

0.02

0.1

μA

Shutdown, temperature increasing

+160

TSD

Thermal shutdown temperature

°C

Reset, temperature decreasing

+140

TA

Ambient operating temperature

–40

+125

°C

(1)

Minimum VIN = VOUT + VDO or 1.7 V, whichever is greater.

(2)

For VOUT(nom) < 1.6 V, when VIN ≤ 1.6 V, the output will lock to VIN and may result in a damaging overvoltage level on the output. To

avoid this situation, disable the device before powering down the VIN.

(3)

Tolerance of external resistors not included in this specification.

(4)

Fixed-voltage versions only; refer to APPLICATION INFORMATION section for more information.

4

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