US1010-25
1A LOW DROPOUT POSITIVE
FIXED OUTPUT REGULATOR
FEATURES
Guaranteed < 1.3V Dropout at Full Load
Current
Fast Transient Response
1% Voltage Reference Initial Accuracy
Built-in Thermal Shutdown
Available in SOT-223 & D-PAK and a new Power
Flex Surface Mount Packages
DESCRIPTION
PRELIMINARY DATASHEET
APPLICATIONS
Low Voltage IC supply Applications
PC Clock Supply Voltage
The US1010-25 is a low dropout three terminal fixed out-
put regulator with minimum of 1A output current capabil-
ity. This product is specifically designed to provide well
regulated supply for low voltage IC applications as well
as generating clock supply for the PC applications. The
US 1010 is
guaranteed to have <1.3V drop out at
full load current
making it ideal to provide well regu-
lated with 3.8V input supply. The US1010 is specifically
designed to be stable with low cost Aluminimum ca-
pacitors while still maintains stability with low ESR tan-
talum caps as well.
TYPICAL APPLICATION
5V
C1
10uF
Vin
3
2
C2
10uF
US1010-25
Vout
2.5V / 1A
Gnd
1010-25app1-1.0
1
Typical Application of US1010-25 in a 5V to 2.5V regulator .
PACKAGE ORDER INFORMATION
Tj (
°
C)
0 TO 150
2 PIN PLASTIC
TO252 (D)
US1010-25CD
3 PIN PLASTIC
SOT223 (Y)
US1010-25CY
2 PIN PLASTIC
POWER FLEX (P)
US1010-25CP
Rev. 1.1
10/30/00
2-1
UNISEM [ UNISEM ]
