AT1397A Datasheet, PDF (14/21 Pages) Aimtron Technology – 6-Channel DC-DC Converter for DSC

AT1397A/B
Preliminary Product Information
6-Channel DC-DC Converter for DSC
VBAT
VBG
VCC
GND
COMP1
CH3
Voltage-Mode
Synchronous
Step-Down
CH1
Current-Mode
Synchronous
Step-Down
PW M
PVCC3
OUT3M
OUT3S
PGND3
FB3
COMP3
SS3
PVCC1
LX1
PGND1
FB1
SS1
PVCC2
COMP2
CH2
Current-Mode
Synchronous
Step-Down
PW M
LX2
PGND2
FB2
SS2
/SDOK
VBAT
C1
VLENS
+3V
R1
R2
VBAT
VDSP_Core
+1V8
VBAT
VDSP_IO
+3V3
Figure 1. Using /SDOK to drive external P-MOSFET that gates 3V power to LENs after 3.3V I/O voltage is in regulation
7F, No.9, Park Avenue II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: [phone] Fax: [phone]
WWW: http://www.aimtron.com.tw
1/10/2006 REV:1.0
Email: [e-mail]
14