LDLN025 datasheet(8/22 Pages) STMICROELECTRONICS

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Electrical characteristics

LDLN025

8/22

DocID029566 Rev 4

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

Quiescent current(4)

IOUT = 0 A

µA

IOUT = 0 A;

-40 °C < TJ < 125 °C

IOUT = 0.25 A

250

µA

IOUT = 0.25 A;

-40 °C < TJ < 125 °C

425

Shutdown current

VEN = 0 V

0.2

µA

ISC

Short-circuit current

VOUT = 0 V

250

500

RLOW

Output discharge

resistance

VEN = 0 V

230

VEN

VIL, enable input

logic low

VOUT + 1 V (1)< VIN < 5.5 V

-40 °C < TJ < 125 °C

0.4

VIH, enable input

logic high

1.2

IEN

Enable pin input

current

VIN = VEN = 5.5 V

5.5

µA

VIN = 5.5 V; VEN = 0 V

0.001

tON

Turn-on time(2)

From VEN > VIH to

VOUT = 95 % of VOUT(nom)

150

µs

TSHDN

Thermal

shutdown(2)

IOUT > 1 mA

160

°C

Hysteresis

Notes:

(1) VIN = VOUT + 1 V or 1.5 V, whichever is greater. Not applicable for 5 V output voltage versions.

(2) Guaranteed by design.

(3) Dropout voltage is the input-to-output voltage difference at which the output voltage is 100 mV below its

nominal value.

(4) The quiescent current is defined as IIN-IOUT and does not include the EN pin current.

Table 5: Recommended input and output capacitors

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

CIN

Input capacitance

Stability

0.7

μF

COUT

Output capacitance

0.7

ESR

Output/input capacitance

500

mΩ

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