A7523
DC-DC CONVERTERBOOST(STEP-UP)
SUPER-SMALL PACKAGE PWM CONTROL
STEP-UP SWITCHING REGULATOR
AiT Semiconductor Inc.
www.ait-ic.com
DESCRIPTION
FEATURES
The A7523 is a compact, high efficiency, and low
voltage step-up DC/DC converter with an
Adaptive Current Mode PWM control loop,
includes an error amplifier, ramp generator,
comparator, switch pass element and driver in
which providing a stable and high efficient
operation over a wide range of load currents. It
operates in stable waveforms without external
compensation.
0.8V（Iout=1mA） Low Start-up Input Voltage
500kHz Fixed Switching Frequency
90% Efficiency
High Supply Capability to Deliver 3.3V 300mA
with1 Alkaline Cell or Deliver 5V 800mA with 1
Li-ion Cell
14μA Quiescent (Switch-off) Supply Current
0.01μA Shutdown Mode Supply Current
Providing Flexibility for Using Internal and
External Power Switches
The low start-up input voltage below 1V makes
A7523 suitable for 1 to 4 battery cells applications
of providing up to 600mA output current. Besides,
the 14μA low quiescent current together with high
efficiency maintains long battery lifetime. The
output voltage is set with two external resistors.
Both internal 2A switch and driver for driving
external power devices (NMOS or NPN) are
provided.
Output voltage: Settable to between 2.0V to
6.0V ,accuracy of 2%
Available in SOT-26 package.
APPLICATION
MP3
PDA
The A7523 is available in SOT-26 package.
DSC
LCD Panel
RF-Tags
ORDERING INFORMATION
Portable Instrument
Wireless Equipment
Package Type
SOT-26
Part Number
A7523E6R-ADJ
E6
A7523E6VR- ADJ
V: Halogen free Package
R: Tape & Reel
Note
AiT provides all RoHS products
Suffix “ V “ means Halogen free Package
REV1.1
- DEC 2011 RELEASED, FEB 2015 UPDATED -
- 1 -
AITSEMI [ AiT Semiconductor ]
