TPS7A02_V06 datasheet(6/43 Pages) TI

部件名	TPS7A02

功能描述	TPS7A02 Nanopower IQ, 25-nA, 200-mA, Low-Dropout Voltage Regulator With Fast Transient Response

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制造商	TI [Texas Instruments]

网页	http://www.ti.com

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6

TPS7A02

SBVS277B – JULY 2019 – REVISED MARCH 2020

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(1)

Specified by design

(2)

VIN = 2.0 V for VOUT ≤ 1.5 V.

(3)

Load Regulation is normalized to the output voltage at IOUT = 1 mA.

(4)

Dropout is measured by ramping VIN down until VOUT = VOUT(nom) x 95%, with IOUT = 200 mA.

6.5 Electrical Characteristics

Specified at TJ = –40°C to +125°C, VIN = VOUT(nom) + 0.5 V or 2.0 V (whichever is greater), IOUT = 1 mA, VEN = VIN, and CIN =

COUT = 1 µF (unless otherwise noted). Typical values are at TJ = 25°C.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Nominal accuracy

TJ = 25°C, VOUT ≥ 1.5 V, 1 µA

(1) ≤ I

OUT ≤ 1 mA

–1

1

%

TJ = 25°C; VOUT < 1.5 V

–15

15

mV

Accuracy over

temperature

VOUT ≥ 1.5 V

TJ = –40°C to +125°C

–1.5

1.5

%

VOUT < 1.5 V

–20

20

mV

ΔVOUT(ΔVIN)

Line regulation

VOUT(nom) + 0.5 V ≤ VIN ≤ 6.0 V

(2)

TJ = –40°C to +125°C

5

mV

ΔVOUT(ΔIOUT)

Load regulation(3)

1 mA

≤ IOUT ≤ 200 mA,

VIN = VOUT(nom) + 0.5 V

(2)

TJ = –40°C to +85°C

20

38

mV

TJ = –40°C to +125°C

50

IGND

Ground current

IOUT = 0 mA

TJ = 25°C

25

46

nA

TJ = –40°C to +85°C

60

IGND/IOUT

Ground current vs

load current

5 µA

≤ IOUT < 1 mA

TJ = 25°C

1

%

1 mA

≤ IOUT < 100 mA

0.25

IOUT ≥ 100 mA

0.15

IGND(DO)

Ground current in

dropout(1)

IOUT = 0 mA, VIN = 95% x VOUT(NOM)

TJ = 25°C

25

nA

ISHDN

Shutdown current

VEN = 0 V, 1.5 V ≤ VIN ≤ 5.0 V, TJ = 25°C

3

10

nA

ICL

Output current limit

VOUT = 90% × VOUT(nom)

VOUT < 2.5V,

VIN = VOUT(nom) +

VDO(max) + 1.0 V

240

450

750

mA

VOUT ≥ 2.5V,

VIN = VOUT(nom) +

VDO(max) + 0.5 V

240

450

750

mA

ISC

Short-circuit current

limit

VOUT = 0 V

65

mA

VDO

Dropout voltage(4)

TJ = –40°C to +85°C

0.8 V

≤ VOUT < 1.0 V

1050

mV

1.0 V

≤ VOUT < 1.2 V

790

1.2 V

≤ VOUT < 1.5 V

650

1.5 V

≤ VOUT < 1.8 V

490

1.8 V

≤ VOUT < 2.5 V

400

2.5 V

≤ VOUT < 3.3 V

310

3.3 V

≤ VOUT ≤ 5.0 V

270

TJ = –40°C to +125°C

0.8 V

≤ VOUT < 1.0 V

1100

1.0 V

≤ VOUT < 1.2 V

850

1.2 V

≤ VOUT < 1.5 V

700

1.5 V

≤ VOUT < 1.8 V

560

1.8 V

≤ VOUT < 2.5 V

450

2.5 V

≤ VOUT < 3.3 V

360

3.3 V

≤ VOUT ≤ 5.0 V

310

PSRR

Power-supply

rejection ratio

f = 1 kHz, IOUT = 30 mA

55

dB

VN

Output voltage

noise

BW = 10 Hz to 100 kHz, VOUT = 0.8 V, IOUT = 30 mA

130

µVRMS

VUVLO

UVLO threshold

VIN rising

1.23

1.3

1.47

V

VIN falling

1.0

1.12

1.41

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