AT1388/AT1388A
Preliminary Product Information
6-Channel DC-DC Controller for DSC
Features
• Low start-up power supply voltage :1.4V(CH6)
• Wide supply voltage range from 2.5V to 6.5V
(CH1~6)
• High speed operation is possible: Maximum
1 MHz
• Supports for up, flyback and up/down SEPIC
conversion
(AT1388:CH2,3,4,5,6 AT1388A:CH2,3,4,6)
• Supports for down and up/down Zeta conversion
(AT1388:CH1 AT1388A:CH1,CH5 )
• Synchronized rectification on CH1,CH2
• Supports for inverting converter CH5
• Built-in On/Off function
• Built-in Soft-Start Function
•
Built-in Short-Circuit Protection.
General Description
The AT1388/AT1388A is a 6-channel PWM
DC/DC control IC for low voltage applications
with a soft start function and short circuit detection
function. This IC is ideal for up conversion, down
conversion, and up/down conversion (using a step-
up/step-down SEPIC ,Zeta system with free input
and output settings). 6 channels can be built in the
LQFP48 package, each channel be controlled, and
soft-start.
The AT1388 include one comparator to generate
low-battery warning outputs. It also contains two
high efficiency topology by using synchronous
rectification PWM(It can be disable by floating
OUT1_2,OUT2_2.)
Applications
• Digital Cameras
• CCD Imaging Devices
• Camcorders
Pin Assignment
Ordering Information
Part Number
AT1388F
AT1388F_PBF
AT1388F_GRE
AT1388AF
AT1388AF_PBF
AT1388AF_GRE
Package
LQFP48
LQFP48, PB-Free
LQFP48,Green
LQFP48
LQFP48, PB-Free
LQFP48,Green
Marking
AT1388F
AT1388F,date code with one bottom line
AT1388F,date code with two bottom line
AT1388AF
AT1388AF,date code with one bottom line
AT1388AF,date code with two bottom line
Aimtron reserves the right without notice to change this circuitry and specifications.
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
WWW:
http://www.aimtron.com.tw
Fax: 886-3-563-0879
Email:
service@aimtron.com.tw
1
GMT [ GLOBAL MIXED-MODE TECHNOLOGY INC ]
