AT1388/AT1388A
Preliminary Product Information
6-Channel DC-DC Controller for DSC
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
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.
Applications
• Digital Cameras
• CCD Imaging Devices
• Camcorders
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.)
Pin Assignment
Ordering Information
Part Number Package Marking
AT1388F LQFP48 AT1388F
AT1388F
_
PBF
LQFP48, PB-Free AT1388F,date code with one bottom line
AT1388F
_
GRE
LQFP48,Green AT1388F,date code with two bottom line
AT1388AF LQFP48 AT1388AF
AT1388AF
_
PBF
LQFP48, PB-Free AT1388AF,date code with one bottom line
AT1388AF
_
GRE
LQFP48,Green AT1388AF,date code with two bottom line
Aimtron reserves the right without notice to change this circuitry and specifications.