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