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TDA3662 Datasheet(PDF) 4 Page - NXP Semiconductors

Part No. TDA3662
Description  Very low dropout voltage/quiescent current 3.0 V voltage regulator
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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TDA3662 Datasheet(HTML) 4 Page - NXP Semiconductors

 
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2000 Apr 26
4
Philips Semiconductors
Preliminary specification
Very low dropout voltage/quiescent current
3.0 V voltage regulator
TDA3662
handbook, halfpage
13
2
4
GND
MGU143
GND
TDA3662
VP
REG
Fig.2 Pin configuration of SO4.
handbook, halfpage
1
2
3
4
8
7
6
5
MBL133
TDA3662AT
VP
GND
GND
GND
n.c.
n.c.
GND
REG
Fig.3 Pin configuration of SO8.
FUNCTIONAL DESCRIPTION
The TDA3662 is a fixed 3.0 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 regulator remains operational down to very low supply
voltages and below this voltage it switches off.
A temperature protection circuit is included which switches
the regulator output off 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 22
Ω (see Figs 5 and 6). This is very attractive as the
ESR of an electrolytic capacitor increases strongly at low
temperatures (no expensive tantalum capacitor is
required).


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