LD49150PT12R datasheet(8/20 Pages) STMICROELECTRONICS

номер детали	LD49150PT12R

подробное описание детали	1.5A Very low drop for low output voltage regulator

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Electrical characteristics

LD49150

8/20

6

Electrical characteristics

Table 4.

Electrical characteristics

(TJ = -25°C to 125 °C, VBIAS = VO+2.1V

(1); V

I = VO+1V; VEN = VBIAS

(2), I

O = 10mA; CI = 1µF;

CO = 10µF; CBIAS = 1µF; unless otherwise specified. Typical values are referred to TJ = 25°C).

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

VO

Output voltage accuracy

TJ = 25°C, fixed voltage options

-1.5

1.5

%

Over temperature range

-3

3

VLINE

Line regulation

VI = VO+1V to 5.5V

-0.1

0.1

%/V

VLOAD

Load regulation

IL = 0mA to 3A, VBIAS ≥ 3V

1%

VDROP

Dropout voltage (VI - VO)IL = 1.5A

200

mV

VDROP

Dropout voltage (VBIAS- VO)

IL = 1.5A

(1)

1.

For VO ≤1V, VBIAS dropout specification does not apply due to a minimum 3V VBIAS input.

1.5

2.1

V

IGND

Ground pin current

IL = 0mA

46

mA

IL = 1.5A

46

IGND_SHD Ground pin current in shutdown

VEN ≤0.4V

(2)

2.

Fixed output voltage version only.

5µA

IVBIAS

Current through VBIAS

IL = 0mA

35

mA

IL = 1.5A

35

IL

Current limit

VO = 0V

2.5

A

Enable Input (2)

VEN

Enable input threshold (fixed

voltage only)

Regulator Enable

1.4

V

Regulator Shutdown

0.4

IEN

Enable pin input current

0.1

1

µA

Reference

VREF

Reference voltage

TJ = 25°C

0.788

0.8

0.812

V

Over temperature range

0.776

0.8

0.824

SVR

Supply voltage rejection

VI = 2.5V±0.5V, VO = 1V,

F = 120Hz, VBIAS = 3.3V

68

dB

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производитель	номер детали	датащи	подробное описание детали
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