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US1175 Datasheet(PDF) 1 Page - UNISEM

Part No. US1175
Description  7.5A ULTRA LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR
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US1175 Datasheet(HTML) 1 Page - UNISEM

   
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US1175
2-1
Rev. 1.2
11/29/99
7.5A ULTRA LOW DROPOUT POSITIVE
ADJUSTABLE REGULATOR
The US1175 product is a 7.5A regulator with extremely
low dropout voltage using a proprietary Bipolar pro-
cess that achieves comparable equivalent on re-
sistance to that of discrete MOSFETs. This product is
specifically designed to provide well regulated supply for
applications requiring very low dropout such as
2.8V from 3.3V ATX power supplies where the same
efficiency as the switcher can be achieved without
the cost and complexity associated with switching
regulators. One such application is the new graphic
chip sets that requires 2.7V supply such as the Intel
I740 chip set.
DESCRIPTION
DESCRIPTION
0.5V Dropout at 7.5A (Equivalent of 67m
Ω)
Ω)
Fast Transient Response
1% Voltage Reference Initial Accuracy
Built-in Thermal Shutdown
PRELIMINARY DATASHEET
APPLICATIONS
APPLICATIONS
FEATURES
FEATURES
3.3V to 2.7V Intel I740 chip set.
TYPICAL APPLICATION
TYPICAL APPLICATION
Typical application of US1175 .
PACKAGE ORDER INFORMATION
PACKAGE ORDER INFORMATION
Tj (
°C)
5 PIN PLASTIC
5 PIN PLASTIC
8 PIN PLASTIC
TO263 (M)
POWER FLEX (P)
SOIC (S)
0 TO 125
US1175CM
US1175CP
US1175CS
3.3V
US1175
2.7V
C1
C3
1175app1-1.0
5V
C2
R1
R2
1
2
3
4
5
Vsense
Adj
Vout
Vctrl
Vin


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