TPS799 datasheet(5/49 Pages) TI2

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6.5 Electrical Characteristics

at TJ = –40°C to +125°C, VIN = VOUT(nom) + 0.3 V or 2.7 V (whichever is greater), IOUT = 1 mA, VEN = VIN, COUT = 2.2 μF, and

CNR = 0.01 μF (unless otherwise noted); for TPS79901, VOUT = 3.0 V; typical values are at TJ = 25°C

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VFB

Internal reference (TPS79901)

1.169

1.193

1.217

VOUT

Output voltage range (TPS79901)

VFB

6.5 – VDO

Output accuracy, nominal

TJ = 25°C

–1%

Output accuracy(1)

over VIN, IOUT, temperature

VOUT + 0.3 V ≤ VIN ≤ 6.5 V

500 μA ≤ IOUT ≤ 200 mA

–2%

±1%

ΔVO(ΔVI)

Line regulation(1)

VOUT(NOM) + 0.3 V ≤ VIN ≤ 6.5 V

0.02

%/V

ΔVO(ΔIO) Load regulation

500 μA ≤ IOUT ≤ 200 mA

0.002

%/mA

VDO

Dropout voltage(1)

(VIN = VOUT(nom) – 0.1 V)

IOUT = 200 mA

VOUT(nom) ≤ 3.3 V

100

175

VOUT(nom) ≥ 3.3 V

160

ICL

Output current limit

VOUT = 0.9 × VOUT(nom)

220

400

600

IGND

Ground pin current

500 μA ≤ IOUT ≤ 200 mA

μA

ISHDN

Shutdown current (IGND)

VEN ≤ 0.4 V, 2.7 V ≤ VIN ≤ 6.5 V

0.15

μA

IFB

Feedback pin current (TPS79901)

–0.5

0.5

µA

PSRR

Power-supply rejection ratio

VIN = 3.85 V,

VOUT = 2.85 V,

CNR = 0.01 μF,

IOUT = 100 mA

f = 100 Hz

f = 1 kHz

f = 10 kHz

f = 100 kHz

Output noise voltage

BW = 10 Hz to 100 kHz,

VOUT = 2.85 V

CNR = 0.01 μF

10.5 × VOUT

μVRMS

CNR = none

94 × VOUT

Start-up time

VOUT = 2.85 V,

RL = 14 Ω,

COUT = 2.2 μF

CNR = 0.001 μF

μs

CNR = 0.047 μF

CNR = 0.01 μF

CNR = none

VEN(HI)

Enable high (enabled)

1.2

VIN

VEN(LO)

Enable low (shutdown)

0.4

IEN(HI)

Enable pin current, enabled

VEN = VIN = 6.5 V

0.03

μA

UVLO

Undervoltage lockout

VIN rising

1.90

2.20

2.65

UVLO hysteresis

VIN falling

Tsd

Thermal shutdown temperature

Shutdown, temperature increasing

165

°C

Reset, temperature decreasing

145

(1)

VDO is not measured for devices with VOUT(nom) < 2.8 V because minimum VIN = 2.7 V.

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TPS799

SBVS056L – JANUARY 2005 – REVISED FEBRUARY 2022

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