APL5912
0.8V Reference Ultra Low Dropout (0.2V@5A) Linear Regulator
Features
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Ultra Low Dropout
- 0.2V (typical) at 5A Output Current
Low ESR Output Capacitor (Multi-layer Chip
Capacitors (MLCC)) Applicable
0.8V Reference Voltage
High Output Accuracy
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±
1.5% over Line, Load and Temperature
Fast Transient Response
Adjustable Output Voltage by External
Resistors
Power-On-Reset Monitoring on Both VCNTL
and VIN Pins
Internal Soft-Start
Current-Limit Protection
Under-Voltage Protection
Thermal Shutdown with Hysteresis
Power-OK Output with a Delay Time
Shutdown for Standby or Suspend Mode
Simple SOP-8-P Package with Exposed Pad
Lead Free Available (RoHS Compliant)
General Description
The APL5912 is a 5A ultra low dropout linear regulator.
This product is specifically designed to provide well
supply voltage for front-side-bus termination on
motherboard and NB applications. The IC needs two
supply voltages, a control voltage for the circuitry and
a main supply volatege for power conversion, to reduce
power dissipation and provide extremely low dropout.
The APL5912 integrates many functions. A Power-On-
Reset (POR) circuit monitors both supply voltages to
prevent wrong operations. A thermal shutdown and
current limit functions protect the device against
thermal and current over-loads. A POK indicates the
output status with time delay which is set internally. It
can control other converter for power sequence. The
APL5912 can be enabled by other power system.
Pulling and holding the EN pin below 0.3V shuts off
the output.
The APL5912 is available in SOP-8-P package which
features small size as SOP-8 and an Exposed Pad to
reduce the junction-to-case resistance, being applicable
in 2~3W applications.
Pin Configuration
GND
FB
VOUT
VOUT
1
2
3
4
8
Applications
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Front Side Bus VTT (1.2V/5A)
Note Book PC Applications
Motherboard Applications
VIN
7
6
5
EN
POK
VCNTL
VIN
SOP-8-P (Top View)
= Exposed Pad
(connected to V
IN
plane for better heat
dissipation)
Copyright
©
ANPEC Electronics Corp.
Rev. A.6 - Jun., 2005
1
www.anpec.com.tw
ANPEC [ ANPEC ELECTRONICS COROPRATION ]
