®

SGS

L487

otherwise specified)

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Vo

Output Voltage

Io = 5mA to 500mA

4.80

5.00

5.20

V

Vi

Operating Input Voltage

(*) See note

28

V

ΔVo

Line Regulation

Vi = 6V to 26V

Io = 5mA

5

50

mV

ΔVo

Load Regulation

Io = 5mA to 500mA

15

60

mV

Vi – Vo

Dropout Voltage

Io = 500mA

0.6

0.8

V

Iq

Quiescent Current

Io = 0mA

6

15

Io = 150mA

20

40

mA

Io = 500mA

130

210

Vi = 6.2 V

Io = 500mA

250

mA

ΔVo

ΔT

Temperature Output

Voltage Drift

–0.5

mV/ºC

SVR

Supply Voltage Rejection

Io = 350 mA

f = 120 Hz

55

dB

Co = 100µF

Vi = 12V ± 5Vpp

Output Short Circuit

Current

0.8

A

Reset Output Voltage

Vo

≤ 4.75V

0.8

V

Reset Output Leakage

Vo in Regulation

50

µA

Current

td

Delay Time for Reset

Output

Cd = 100nF

30

ms

VRT(off)

Reset Threshold (delay

4.75

Vo–0.15

Vo–0.04

V

charging current on)

IC4

Charging Current

10

27

µA

(current generator)

VRT(on)

Reset Threshold (low)

VRT(off)

–10m V

V

V4

Comparator Threshold

3.6

3.95

V

(pin 4)

* For a DC input voltage 28 < Vi < 35V the device is not operating

For dimensional information on the Pentawatt package see the L387A data sheet. For more information

on this device see the SGS-Thomson Microelectronics Application Note: 'Low Drop Voltage Regulators

for Automotive Electronics' by S.Ciscato.

This device can be used as a replacement for L387A, L4947, LM2927T, L78MR05 or 4848 (in house

part number with 'SGS 88719' printed on it).