TDA3664A 查看數據表（PDF） - Philips Electronics
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TDA3664A Datasheet PDF : 16 Pages
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Philips Semiconductors
Very low dropout voltage/quiescent
current 5 V voltage regulator
Preliminary specification
TDA3664
FUNCTIONAL DESCRIPTION
The TDA3664 is a fixed 5 V regulator which can deliver
output currents up to 100 mA. The regulator is available in
SO8 and SOT223 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, below which it switches off.
A temperature protection is included, which switches the
regulator output off at IC temperatures above 150 °C.
A new output structure guarantees the stability of the
regulator 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
required).
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
VP
VP(rp)
Ptot
Tstg
Tamb
Tj
PARAMETER
supply voltage
TDA3664T
TDA3664
TDA3664AT
reverse polarity supply voltage
total power dissipation
SO8
SOT223
storage temperature
ambient temperature range
TDA3664T
TDA3664
TDA3664AT
junction temperature
CONDITIONS
non-operating
Tamb = 25 °C
non-operating
operating
operating
MIN.
MAX.
UNIT
−
22
V
−
45
V
−
45
V
−
−25
V
−
0.8
W
−
5
W
−55
+150
°C
−40
+85
°C
−40
+125
°C
−40
+125
°C
−40
+150
°C
THERMAL CHARACTERISTICS
SYMBOL
Rth(j-a)
Rth(j-c)
PARAMETER
thermal resistance from junction to ambient
SO8
SOT223
thermal resistance from junction to case (SOT223)
CONDITIONS
in free air, soldered in
in free air
VALUE
155
100
25
UNIT
K/W
K/W
K/W
QUALITY SPECIFICATION
In accordance with “SNW-FQ-611E”. The number of the quality specification can be found in the “Quality Reference
Handbook”.
1999 Sep 01
4
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