LD49150 datasheet(8/20 Pages) STMICROELECTRONICS

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Electrical characteristics

LD49150

8/20

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

Output voltage accuracy

TJ = 25°C, fixed voltage options

-1.5

1.5

Over temperature range

-3

VLINE

Line regulation

VI = VO+1V to 5.5V

-0.1

0.1

%/V

VLOAD

Load regulation

IL = 0mA to 3A, VBIAS ≥ 3V

VDROP

Dropout voltage (VI - VO)IL = 1.5A

200

VDROP

Dropout voltage (VBIAS- VO)

IL = 1.5A

(1)

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

1.5

2.1

IGND

Ground pin current

IL = 0mA

IL = 1.5A

IGND_SHD Ground pin current in shutdown

VEN ≤0.4V

(2)

Fixed output voltage version only.

5µA

IVBIAS

Current through VBIAS

IL = 0mA

IL = 1.5A

Current limit

VO = 0V

2.5

Enable Input (2)

VEN

Enable input threshold (fixed

voltage only)

Regulator Enable

1.4

Regulator Shutdown

0.4

IEN

Enable pin input current

0.1

µA

Reference

VREF

Reference voltage

TJ = 25°C

0.788

0.8

0.812

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

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