LDF datasheet(9/33 Pages) STMICROELECTRONICS

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LDF

Electrical characteristics

DocID025502 Rev 2

9/33

TJ = 25 °C, VIN = VOUT(NOM) + 1 V, CIN

= 1 μF, COUT = 2.2 μF, ILOAD = 10 mA, VEN = 2 V,

unless otherwise specified.

Table 6: LDF (adjustable version) electrical characteristics

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

VIN

Operating input

voltage

2.6

VADJ

Reference voltage

VIN = VOUT +1 V (1)

0.8

Reference voltage

tolerance

VOUT + 1 V (1)

≤ VIN ≤ 16 V

ILOAD = 10 mA

-1

10 mA ≤ ILOAD ≤ 1 A

TJ = -40 to 125 °C

-1.5

1.5

ΔVOUT

Static line regulation

VOUT +1 V (1)

≤ VIN ≤ 16 V

0.01

VOUT+1 V (1)

≤ VIN ≤ 16 V

TJ = -40 to 125 °C

0.04

ΔVOUT

Static load

regulation

10 mA ≤ ILOAD ≤ 1 A

0.2

%/A

10 mA ≤ ILOAD ≤ 1 A

TJ = -40 to 125 °C

0.2

0.6

VDROP

Dropout voltage (2)

VOUT fixed to 2.5 V,

ILOAD = 1 A

-40 °C < TJ < 125 °C

200

500

Quiescent current

ON mode: VEN = 2 V

ILOAD = 10 mA to 1 A

TJ = -40 to 125 °C

200

800

µA

OFF mode: VEN = GND

PPAK and DFN versions

OFF mode: VEN = GND

PPAK and DFN versions

-40 °C < TJ < 125 °C

120

ISC

Short-circuit current

VIN > 3 V

1.5

VEN

Enable input logic

low

VIN = 2.6 V to 16 V

-40 °C < TJ < 125 °C

0.8

Enable input logic

high

IEN

Enable pin input

current

VEN = VIN

µA

Power-good output

threshold

Rising edge

0.92*VADJ

Falling edge

0.8*VADJ

Power-good output

voltage low

ISINK = 6 mA

open drain output

0.4

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