TPS7A4533DCQR datasheet(4/25 Pages) TI

Part #	TPS7A4533DCQR

Description	LOW-NOISE FAST-TRANSIENT-RESPONSE 1.5-A LDO VOLTAGE REGULATORS

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Manufacturer	TI [Texas Instruments]

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TPS7A45xx

SLVS720C – JUNE 2008 – REVISED SEPTEMBER 2009 ................................................................................................................................................ www.ti.com

ELECTRICAL CHARACTERISTICS

(1)

(continued)

Over operating temperature range TJ = –40°C to 125°C (unless otherwise noted)

PARAMETER

TEST CONDITIONS

TJ

MIN

TYP (2)

MAX

UNIT

25°C

0.02

0.05

ILOAD = 1 mA

Full range

0.06

25°C

0.085

0.10

ILOAD = 100 mA

Full range

0.13

Dropout voltage(4) (6) (7)

VDO

V

VIN = VOUT(NOMINAL)

25°C

0.17

0.180

ILOAD = 500 mA

Full range

0.250

25°C

0.300

0.350

ILOAD = 1.5 A

Full range

0.450

ILOAD = 0 mA

Full range

1

1.5

ILOAD = 1 mA

Full range

1.1

1.6

GND pin current(7) (8)

IGND

ILOAD = 100 mA

Full range

3.3

3.5

mA

VIN = VOUT(NOMINAL) + 1

ILOAD = 500 mA

Full range

15

17

ILOAD = 1.5 A

Full range

80

90

COUT = 10 μF, ILOAD = 1.5 A,

eN

Output voltage noise

25°C

35

μVRMS

BW = 10 Hz to 100 kHz

IADJ

ADJ pin bias current(3) (9)

25°C

3

7

μA

VOUT = OFF to ON

Full range

0.9

2

Shutdown threshold

V

VOUT = ON to OFF

Full range

0.25

0.75

V SHDN = 0 V

25°C

0.01

1

I SHDN

SHDN pin current

μA

V SHDN = 20 V

25°C

3

20

Quiescent current in

VIN = 6 V, V SHDN = 0 V

25°C

0.01

1

μA

shutdown

VIN – VOUT = 1.5 V (avg), VRIPPLE = 0.5 VP-P,

Ripple rejection

25°C

68

dB

fRIPPLE = 120 Hz, ILOAD = 0.75 A

VIN = 7 V, VOUT = 0 V

25°C

2

ILIMIT

Current limit

A

VIN = VOUT(NOMINAL) + 1

Full range

1.6

Input reverse leakage

IIL

VIN = –20 V, VOUT = 0 V

Full range

300

μA

current

TPS7A4515

VOUT = 1.5 V, VIN < 1.5 V

25°C

600

1000

TPS7A4518

VOUT = 1.8 V, VIN < 1.8 V

25°C

600

1000

IRO

Reverse output current(10)

TPS7A4525

VOUT = 2.5 V, VIN < 2.5 V

25°C

600

1000

μA

TPS7A4533

VOUT = 3.3 V, VIN < 3.3 V

25°C

600

1000

TPS7A4501

VOUT = 1.21 V, VIN < 1.21 V

25°C

300

500

(6)

Dropout voltage is the minimum input to output voltage differential needed to maintain regulation at a specified output current. In

dropout, the output voltage is equal to: VIN – VDROPOUT.

(7)

To satisfy requirements for minimum input voltage, the TPS7A4501 is tested and specified for these conditions with an external resistor

divider (two 4.12-k

Ω resistors) for an output voltage of 2.4 V. The external resistor divider adds a 300-mA DC load on the output.

(8)

GND pin current is tested with VIN = (VOUT(NOMINAL) + 1 V) and a current source load. The GND pin current decreases at higher input

voltages.

(9)

ADJ pin bias current flows into the ADJ pin.

(10) Reverse output current is tested with the IN pin grounded and the OUT pin forced to the rated output voltage. This current flows into the

OUT pin and out the GND pin.

4

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