TS2940
1A Ultra Low Dropout Fixed Positive Voltage Regulator
TO-263
Low Dropout Voltage 0.6V (typ.)
Pin assignment:
1. Input
2. Ground
3. Output
General Description
The TS2940 series of fixed-voltage monolithic micro-power voltage regulators is designed for a wide range of
applications. This device excellent choice of use in battery-power application. Furthermore, the quiescent current
increases on slightly at dropout, which prolongs battery life.
This series of fixed-voltage regulators features very low ground current (100uA Typ.) and very low drop output voltage
(Typ. 60mV at light load and 600mV at 1A). This includes a tight initial tolerance of 1% typ., extremely good line regulation
of 0.05% typ., and very low output temperature coefficient.
This series is offered in 3-pin TO-263, TO-220, TO-252 & SOT-223 package.
Features
Dropout voltage typically 0.6V @Io=1A
Output current up to 1A
Output voltage trimmed before assembly
-18V Reverse peak voltage
+30V Input over voltage protection
+60V Transient peak voltage
Internal current limit
Thermal shutdown protection
Block Diagram
Ordering Information
Part No.
TS2940CZxx
TS2940CMxx
TS2940CPxx
-40 ~ +85 C
o
Operation Temp.
-40 ~ +125 C
o
Package
TO-220
TO-263
TO-252
TS2940CWxx
SOT-223
Note: Where
xx
denotes voltage option, available are
5.0V, 3.3V, 2.5V and 1.8V. Contact factory for
additional voltage options.
Absolute Maximum Rating
(Note 1)
Input Supply Voltage (Note 2)
Operation Input Supply Voltage
Power Dissipation (Note 3)
Operating Junction Temperature Range
Storage Temperature Range
Lead Soldering Temperature (260
o
C)
TO-220 TO-263 Package
TO-252 / SOT-223Package
5
4
S
Vin
Vin (operate)
P
D
T
J
T
STG
-18 ~ +60
30V
Internally Limited
-40 ~ +125
-65 ~ +150
V
V
W
o
o
C
C
TS2940
1-6
2003/12 rev. B