AT1387A
Preliminary Product Information
6-Channel DC-DC Converter 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 (CH3,4,5,6)
• Supports for down and up/down Zeta conversion
(CH1,2)
• Synchronized rectification on CH1,CH2
• Supports for negative voltage feedback 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 AT1387A 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 AT1387A 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
AT1387AF LQFP48 AT1387AF
AT1387AF
_
PBF
LQFP48, PB-Free AT1387AF, date code with one bottom line
AT1387AF
_
GRE
LQFP48, Green AT1387AF, date code with two bottom line
Aimtron reserves the right without notice to change this circuitry and specifications.