A6303A
AiT Semiconductor Inc.
www.ait-ic.com
CMOS LOW DROPOUT REGULATOR (LDO)
300mA ULTRA-LOW NOISE, ULTRA-FAST RESPONSE
DESCRIPTION
FEATURES
The A6303A is designed for portable RF and
wireless applications with demanding
performance and space requirements.
The A6303A performance is optimized for
battery –powered systems to deliver ultra low
noise and low quiescent current. Regulator
ground currentincreases only slightly in dropout,
furtherprolonging the battery life.
Ultra-low Noise for RF Application
Ultra-Fast Response in Line/Load Transient
<0.01μA Standby Current When Shutdown
Low Dropout: 210mV@300mA
Wide Operating Voltage Ranges: 2V to 6V
Wide Output Voltage Range:1.2V to 5V
TTL-logic-Controlled Shutdown Input
(SOT-25, SC70-5)
Low Temperature Coefficient
The A6303A also works with low-ESR ceramic
capacitors, reducing the amount of board space
necessary for power applications, critical in
hand-held wireless devices. The A6303A
consumes less than 0.01μA in shutdown mode
and has fast turn-on time less than 50μs. The
other features include ultra low dropout voltage,
high output accuracy,current limiting protection
and high ripple rejection ratio.
Current Limiting Protection
Thermal Shutdown Protection
Only 1μF Output Capacitor Required for Stability
High Power Supply Rejection Ratio
Custom Voltage Available
Fast output discharge
Available in SOT-23, SOT-25, SC70-5 Package
APPLICATION
The A6303A is available in SOT-23, SOT-25 and
SC70-5 Packages.
Cellular and Smart Phones
Battery-Powered Equipment
Laptop, Palmtops, Notebook Computers
Hand-Held Instruments
PCMCIA Cards
ORDERING INFORMATION
MP3/MP4/MP5 Players
Portable Information Appliances
Package Type
SOT-23
Part Number
TYPICAL APPLICATION
A6303AE3R-XXZ
A6303AE3VR-XXZ
A6303AE5R-XXZ
A6303AE5VR-XXZ
A6303AC5R-XX
A6303AC5VR-XX
E3
E5
C5
SOT-25
SC70-5
XX: Output Voltage
12= 1.2V, 25=2.5V, 33=3.3V
Z: Output Type
Note
A = A Type
NOTE: Output capacitor (C2 ≥ 2.2uF) is recommended in
A6303A-1.2V, A6303A-1.3V, A6303A-1.5V and A6303A-1.8V
application to assure the stability of circuit.
V: Halogen free Package
R: Tape & Reel
AiT provides all RoHS products
Suffix “ V “ means Halogen free Package
REV1.4
-DEC 2009 RELEASED, NOV 2011 UPDATED -
- 1 -
AITSEMI [ AiT Semiconductor ]
