APU1150 Datasheet, PDF (1/7 Pages) Advanced Power Electronics Corp. – 4A ULTRA LOW DROPOUT POSITIVE

Advanced Power
Electronics Corp.
Technology Licensed from International Rectifier
APU1150
FEATURES
0.7V Dropout at 4A
Fast Transient Response
1% Voltage Reference Initial Accuracy
Built-In Thermal Shutdown
RoHS Compliant & Halogen Free
APPLICATIONS
3.3V to 2.7V Intel I740 Chip Set
4A ULTRA LOW DROPOUT POSITIVE
ADJUSTABLE REGULATOR
DESCRIPTION
The APU1150 is a 4A regulator with extremely low drop-
out voltage using a proprietary bipolar process that
achieves comparable equivalent on-resistance to that of
discrete MOSFETs. This product is specifically designed
to provide well regulated supply for applications requir-
ing 2.8V or lower voltages from 3.3V ATX power supplies
where high efficiency of a switcher can be achieved with-
out the cost and complexity associated with switching
regulators. One such application is the new graphic chip
sets that require anywhere from 2.4V to 2.7V supply
such as the Intel I740 chip set.
TYPICAL APPLICATION
3.3V
C1
100uF
VIN 5
VCTRL 4
APU1150 ^{VOUT 3}
Adj 2
VSENSE 1
2.7V
R1
102
C3
R2
100uF
118
5V
C2
100uF
Figure 1 - Typical application of APU1150 in a 3.3V to 2.7V for I740 chip.
PACKAGE/ORDER INFORMATION
TJ (°C)
0 To 125
5-PIN PLASTIC
TO-263 (S)
APU1150S-HF
8-PIN PLASTIC
SOIC (M)
APU1150M-HF
Data and specifications subject to change without notice.
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