L4995J 데이터 시트보기 (PDF) - STMicroelectronics

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L4995J

5V, 500mA low drop voltage regulator

STMicroelectronics 

L4995

5V, 500mA low drop voltage regulator

Features

Datasheet − production data

Max DC supply voltage

VS

Max output voltage tolerance

ΔV0

Max dropout voltage

Vdp

Output current

I0

Quiescent current

Iqn

1. Typical value with regulator disabled

40V

+/-2%

500mV

500mA

3µA(1)

■ Operating DC supply voltage range 5.6V to

31V

■ Low dropout voltage

■ Low quiescent current consumption

■ Reset circuit sensing of output voltage down to

1V

■ Programmable reset pulse delay with external

capacitor

■ Programmable watchdog(a) timer with external

capacitor

■ Thermal shutdown and short circuit protection

■ Wide temperature range (Tj = -40 °C to 150 °C)

■ Enable(a) input for enabling/disabling the

voltage regulator

a. Watchdog and Enable facilities are available

according to Device summary table.

PowerSSO-12

PowerSSO-24

Description

L4995 is a family of monolithic integrated 5 V

voltage regulators with a low drop voltage at

currents of up to 500 mA, available in both 12 and

24 pin packages.

The output voltage regulating element consists of

a p-channel MOS and regulation is performed

regardless of input voltage transients of up to 40V.

The high precision of the output voltage is

obtained using a pre-trimmed reference voltage.

The L4995 family is protected against short circuit

and overtemperature protection switches off the

devices in the case of extremely high power

dissipation. The L4995 integrates the watchdog,

enable and externally programmable reset

circuits. The L4995A features the externally

programmable reset and enable. Finally the

L4995R features the externally programmable

reset.

The combination of such features makes this

device particularly flexible and suitable to supply

microprocessor systems in automotive

applications.

Table 1. Device summary

Package

Tube

Order codes

Tape and reel

PowerSSO-12 (exposed pad)

L4995J - L4995AJ - L4995RJ

L4995JTR - L4995AJTR - L4995RJTR

PowerSSO-24 (exposed pad)

L4995K - L4995AK - L4995RK

L4995KTR - L4995AKTR - L4995RKTR

P/N

Watchdog

Reset

Enable

L4995J - L4995K

X

X

X

L4995AJ - L4995AK

-

X

X

L4995RJ - L4995RK

-

X

-

October 2012

This is information on a product in full production.

Doc ID 13103 Rev 13

1/35

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