APL5950/A
5A, Ultra Low Dropout (0.15V Typical) Linear Regulator
Features
General Description
The APL5950/A is a 5A ultra low dropout linear regulator.
The IC needs two supply voltages, one is a control voltage
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Ultra Low Dropout
- 0.15V(typical) at 5A Output Current
Low ESR Output Capacitor (Multi-Layer Chip Ca-
pacitors (MLCC)) Applicable
(VCNTL) for the control circuitry, the other is a main supply
voltage (VIN) for power conversion, to reduce power dissi-
pation and provide extremely low dropout voltage.
The APL5950/A integrates many functions. A Power-On-
Reset (POR) circuit monitors both supply voltages on
VCNTL and VIN pins to prevent erroneous operations.
The functions of thermal shutdown and current-limit pro-
tect the device against thermal and current over-loads. A
POK indicates the output voltage status with a delay time
set internally. It can control other converter for power
sequence. The APL5950/A can be enabled by other power
systems. Pulling and holding the EN voltage below 0.4V
shuts off the output.
High Output Accuracy
- ±1% Over Line, Load, and Temperature Range
Fast Transient Response
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Adjustable Output Voltage
Power-On-Reset Monitoring on Both VCNTL and
VIN Pins
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Internal Soft-Start
Current-Limit Protection
Under-Voltage Protection
Thermal Shutdown with Hysteresis
Open-Drain VOUT Voltage Indicator (POK)
Low Shutdown Quiescent Current (<30mA)
Shutdown/Enable Control Function
Simple SOP-8P and TDFN-3x3-10 Packages with
Exposed Pad
The APL5950/A is available in a SOP-8P package which
features small size as SOP-8 and an Exposed Pad to
reduce the junction-to-case resistance to extend power
range of applications.
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Lead Free and Green Devices Available
(RoHS Compliant)
Simplified Application Circuit
Applications
VCNTL
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Front Side Bus VTT (1.2V/5A)
Note Book PC Applications
Motherboard Applications
VIN
VCNTL
VIN
POK
POK
VOUT
VOUT
APL5950/A
EN
EN
FB
GND
Enable
Optional
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and
advise customers to obtain the latest version of relevant information to verify before placing orders.
Copyright ã ANPEC Electronics Corp.
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www.anpec.com.tw
Rev. A.1 - Oct., 2012