AT1397A/B
Preliminary Product Information
6-Channel DC-DC Converter for DSC
Block Diagram
COMP1
FB1
0.8V
SS1
SS1OK
CTL1
Ramp1
COMP2
FB2
-
+
0.8V
SS2
Power
Good
-
-
+
SS1OK
Step-
Down
Pre-
Driver
PVCC2
Current
Sense
PGND1
-
+
-
-
+
Step-
Down
Pre-
Driver
PVCC1
LX1
LX2
/SDOK
CTL2
Ramp2
Current
Sense
PGND2
PVCC3
COMP3
FB3
-
+
0.8V
SS3
OSC1
+
+
-
SS1OK
Step-
Down
Pre-
Driver
OUT3S
OUT3M
PGND3
CTL3
SEL4
COMP4
IN4
IP4
SS4
CTL4
OSC2
+
OVP
COMP5
1V
FB5
-
+
VREF
SS5
CTL5
COMP6
FB6
0.8V
+
SS6
CTL6
OSC1
OSC2
SS1OK
-
+
+
+
-
Step-
Up/
Down
Pre-
Driver
*Selectable P-ch or N-ch
driver for step-down/up/
inverting converter
PVCC4
OUT4
FB5H
-
SS1OK
+
+
-
OSC1
SS1OK
-
+
+
-
OSC2
Ramp1 Ramp2
Step-
Up
Pre-
Driver
*Metal Option
LED Driver (VREF=0.2V)
or Step-Up(VREF=0.8V)
OUT5
Step-
Up
Pre-
Driver
OUT6
SCP3
SCP4
SCP5
SCP6
OVP
CT
CTLU
OSC
Ramp
Gen
0.8V
Short-Circuit
Protection
CSCP
UVLO
2V
VBGEN
VRGEN
1.22V
LDO
2.3V
VCC
GND
VBG
VREG
7F, No.9, Park Avenue II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
Fax: 886-3-563-0879
WWW:
http://www.aimtron.com.tw
4/2/2007 REV:1.1
Email:
service@aimtron.com.tw
2
GMT [ GLOBAL MIXED-MODE TECHNOLOGY INC ]
