TPS73028YZQT datasheet(5/31 Pages) TI1

Part #	TPS73028YZQT

Description	Low-Noise, High PSRR, RF, 200-mA Low-Dropout Linear Regulators

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TPS730

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SBVS054J – NOVEMBER 2004 – REVISED APRIL 2015

6.5 Electrical Characteristics

Over recommended operating temperature range TJ = –40 to +125°C, VEN = VIN, VIN = VOUT(nom) + 1 V

(1), I

OUT = 1 mA, COUT =

10

μF, CNR = 0.01 μF (unless otherwise noted). Typical values are at 25°C.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VIN

Input voltage range(1)

2.7

5.5

V

IOUT

Continuous output current

0

200

mA

VFB

Internal reference (TPS73001)

1.201

1.225

1.25

V

Output voltage

TPS73001

VFB

5.5 – VDO

V

range

VOUT

Output voltage accuracy

0 µA

≤ IOUT ≤ 200 mA, 2.75 V ≤ VIN ≤ 5.5 V

–2% VOUT(nom)

2%

V

ΔVOUT(ΔVIN)

Line regulation(1)

VOUT + 1 V ≤ VIN ≤ 5.5 V

0.05

%/V

ΔVOUT(ΔIOUT)

Load regulation

0 µA

≤ IOUT ≤ 200 mA, TJ = 25°C

5

mV

Dropout voltage(2)

VDO

IOUT = 200 mA

120

210

mV

(VIN = VOUT(nom) – 0.1 V)

ICL

Output current limit

VOUT = 0 V

285

600

mA

IGND

Ground pin current

0 µA < IOUT < 200 mA

170

250

μA

ISHUTDOWN

Shutdown current(3)

VEN = 0 V, 2.7 V ≤ VIN ≤ 5.5 V

0.07

1

μA

IFB

FB pin current

VFB = 1.8 V

1

μA

Power-supply

PSRR

TPS73028

f = 100 Hz, IOUT = 200 mA, TJ = 25°C

68

dB

rejection ratio

Output noise

BW = 200 Hz to 100 kHz, IOUT = 200 mA,

Vn

TPS73018

33

μVRMS

voltage

CNR = 0.01 μF

tSTR

Start-up time

TPS73018

RL = 14 Ω, COUT = 1 µF, CNR = 0.001 μF

50

μs

VEN(high)

High-level enable input voltage

2.7 V

≤ VIN ≤ 5.5 V

1.7

VIN

V

VEN(low)

Low-level enable input voltage

2.7 V

≤ VIN ≤ 5.5 V

0

0.7

V

IEN

EN pin current

VEN = 0 V

–1

1

μA

Threshold, VCC rising

2.25

2.65

V

UVLO

Hysteresis

100

mV

(1)

Minimum VIN is 2.7 V or VOUT + VDO, whichever is greater.

(2)

Dropout is not measured for the TPS73018 and TPS73025 since minimum VIN = 2.7 V.

(3)

For adjustable versions, this applies only after VIN is applied; then VEN transitions high to low.

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