TDA3663 查看數據表（PDF） - Philips Electronics

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TDA3663

45 V, very low dropout voltage/quiescent current 3.3 V voltage regulator

Philips Electronics 

Philips Semiconductors

Very low dropout voltage/quiescent current

3.3 V voltage regulator

Preliminary specification

TDA3663

handbook, halfpage

GND

4

1

2

3

VP GND REG

MGL810

FUNCTIONAL DESCRIPTION

The TDA3663 is a fixed 3.3 V regulator which can deliver

output currents up to 100 mA. The regulator is available in

SO8 and SO4 packages. The regulator is intended for

portable, mains, telephone and automotive applications.

To increase the lifetime of batteries, a specially built-in

clamp circuit keeps the quiescent current of this regulator

very low, also in dropout and full load conditions.

The device remains operational down to very low supply

voltages and below this voltage it switches off.

A temperature protection circuit is included which switches

off the regulator output at a junction temperature

above 150 °C.

A new output circuit guarantees the stability of the

regulator for a capacitor output circuit with an ESR up to

38 Ω. This is very attractive as the ESR of an electrolytic

capacitor increases strongly at low temperatures (no

expensive tantalum capacitor is required).

Fig.2 Pin configuration of SO4.

handbook, halfpage

REG 1

GND 2

GND 3

n.c. 4

8 VP

7 GND

TDA3663

6 GND

5 n.c.

MGS585

Fig.3 Pin configuration of SO8.

2000 Feb 01

4

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