TDA3674AT PHILIPS [NXP Semiconductors], TDA3674AT Datasheet - Page 4

• Manufacturer Part Number: TDA3674AT
• Description: Low dropout voltage/quiescent current 5 V voltage regulator with enable
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
FUNCTIONAL DESCRIPTION
The TDA3674 is a fixed 5 V regulator which can deliver
output currents up to 100 mA. The regulator is available in
an SO8 package with fused centre pins connected to the
lead frame. 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 operating down to very low supply
voltages and below it switches off.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
THERMAL CHARACTERISTICS
QUALITY SPECIFICATION
In accordance with “SNW-FQ-611E” .
2000 Feb 01
V
V
P
T
T
T
R
R
stg
amb
j
P
P(rp)
tot
th(j-a)
th(j-c)
Low dropout voltage/quiescent current 5 V
voltage regulator with enable
SYMBOL
SYMBOL
supply voltage
reverse polarity supply voltage
total power dissipation
storage temperature
ambient temperature
junction temperature
thermal resistance from junction to ambient
thermal resistance from junction to case
TDA3674T
TDA3674AT
TDA3674T
TDA3674AT
PARAMETER
PARAMETER
non-operating
temperature of copper area
is 25 C
non-operating
operating
operating
4
A temperature protection circuit is included, which
switches off the regulator output at a junction temperatures
above 150 C.
A new output circuit guarantees the stability of the
regulator for a capacitor output circuit with an ESR up to
20 . If only a 100 nF capacitor is used, the regulator is
fully stable when I
the ESR of an electrolytic capacitor increases strongly at
low temperatures (no expensive tantalum capacitor is
required).
CONDITIONS
in free air; soldered
to centre pins; soldered
CONDITIONS
REG
> 200 A. This is very attractive as
55
40
40
40
MIN.
Preliminary specification
33
45
4.1
+150
+85
+125
+150
VALUE
25
MAX.
125
30
TDA3674
V
V
V
W
C
C
C
C
UNIT
UNIT
K/W
K/W