APE8902C_14 Datasheet, PDF (1/9 Pages) Advanced Power Electronics Corp. – 2A ULTRA LOW DROPOUT LINEAR REGULATOR

Advanced Power
Electronics Corp.
APE8902C
2A ULTRA LOW DROPOUT LINEAR REGULATOR
FEATURES
Ultra Low Dropout 0.21V(typical) @ 2A Output
Current for 1.2V Output Voltage
Low ESR Output Capacitor (Multi-layer Chip
Capacitors (MLCC)) Applicable
EN Pull-low for APE8902CMP-A
EN Pull-high for APE8902CMP-B
Fast Transient Response
Adjustable Output Voltage by External Resistors
Power-On-Reset Monitoring on Both VCNTL
and VIN Pins
Internal Soft-Start
Current-Limit and Thermal Shutdown Protection
Power-OK Output with a Delay Time
SO-8 with Exposed Pad & DFN 3x3-10L
Pb-Free Package.
Halogen Free Product
TYPICAL APPLICATION
DESCRIPTION
The APE8902C series is a 2A ultra low dropout linear
regulator. This product is specifically designed to provide
well supply voltage for front-side-bus termination on
motherboards and NB applications. The IC needs two
supply voltages, a control voltage for the circuitry and a
main supply voltage for power conversion, to reduce power
dissipation and provide extremely low dropout. The
APE8902C series 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 APE8902C series can be enabled by other power
system. Pulling and holding the EN pin below 0.4V shuts off
the output.
The APE8902C series is available in ESOP-8 package
which features small size as SO-8 and an Exposed Pad to
reduce the junction-to-case resistance, being applicable in
2~3W applications.
V_CNTL
POK _U1
R3
POK
10k
EN
EN
GND
ADJ
V_IN
VIN
VOUT
VCNTL
NC
C1
4 .7 uF
C2
1 uF
APE8902C
V_OUT
R1
CF
20k _*option
Cout
10uF
R2
10k
Data and specifications subject to change without notice
1
20130206V4.1