US1075
7.5A LOW DROPOUT POSITIVE
ADJUSTABLE REGULATOR
FEATURES
1V Dropout at Full Load Current
Fast Transient Response
1% Voltage Reference Initial Accuracy
Output Current Limiting
Built-in Thermal Shutdown
DESCRIPTION
The US1075 product is a low dropout three terminal ad-
justable regulator with minimum of 7.5A output current
capability. This product is specifically designed to pro-
vide well regulated supply for low voltage IC applications
such as
Pentium
™
P54C
™
,P55C
™
as well as
GTL+
termination for Pentium Pro
™
and Klamath
™
pro-
cessor applications . The US1075 is also well suited for
other processors such as
Cyrix
™
,AMD and Power
PC
™
applications. The US 1075 is
guaranteed to have
<1.2V drop out at full load current
making it ideal to
provide well regulated outputs such as 3.3V with input
supply voltage as low as
4.5V
minimum.
APPLICATIONS
Low Voltage Processor Applications such as :
P54C
™
,P55C
™
,Cyrix M2
™
,
POWER PC
™
,AMD
GTL+ Termination
PENTIUM PRO
™
, KLAMATH
™
Low Voltage Memory Termination Applications
Standard 3.3V Chip-Set and Logic Applications
TYPICAL APPLICATION
5V
C1
1500uF
Vin
3
US1075
Vout
2
R1
121
3.3V
C2
2x 1500uF
Adj
1075app1-1.0
1
R2
200
Typical Application of US1075 in a 5V to 3.3V regulator
Notes: Pentium P54C,P55C ,Klamath,Pentium Pro,VRE,are trade marks of Intel Corp.Cyrix M2 is trade mark of Cyrix Corp.
Power PC is trade mark of IBM Corp.
PACKAGE ORDER INFORMATION
Tj (°C)
0 TO 150
3 PIN PLASTIC
TO220 (T)
US1075CT
3 PIN PLASTIC
TO263 (M)
US1075CM
3 PIN PLASTIC
POWER FLEX (P)
US1075CP
Rev. 1.0
9/14/99
2-33
UNISEM [ UNISEM ]
