AT1397A/B

Preliminary Product Information

6-Channel DC-DC Converter for DSC

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

1/10/2006

REV:1.0

11

Typical Application Circuits

OUT5

SS6

FB6

OUT6

PGND3

PVCC4

PVCC4

VBAT

1-Cell Li-Ion

3.4V~4.2V

FB5H

FB5

SS5

LED+

2~4Cell

20mA

VBAT

OUT4

IP4

SS4

VREG

PVCC3

VBAT

FB3

SS3

SEL4

PGND1

LX1

PVCC1

FB1

SS1

PVCC4

PGND2

LX2

PVCC2

FB2

SS2

VDSP_Core

+1V8/200mA

VBG

VCC

GND

COMP1

COMP2

CT

CTL1

CTL3

CTL4

CTL5

CTL6

/SDOK

OUT3M

OUT3S

CH6

Voltage-Mode

Step-Up PWM

CH4

Voltage-Mode

Inverting PWM

IN4

CH5

Voltage-Mode

PWM LED

Driver

CH3

Voltage-Mode

Synchronous

Step-Down

PVCC4

CH1

Current-Mode

Synchronous

Step-Down

PWM

CH2

Current-Mode

Synchronous

Step-Down

PWM

CSCP

COMP6

COMP5

COMP4

COMP3

VBAT

VDSP_IO

+3V3/200mA

CCD Bias

-6V3/50mA

Short-Circuit

Protection

Power ON

LENS ON

CCD ON

LED ON

AT1397A

6.8uH

VBAT

1uF

0.1uF

22uF

10uF

125K

100K

1uF

0.1uF

6.8uH

100K

312.5K

22uF

0.1uF

MBR140WS

10uH

0.1uF

0.1uF

10K

100K

275K

10uF

1uF

UPM2032BN

UPM2031AN

22uF

0.1uF

10K

0.1uF

10K

140K

10uF

MBR140WS

UPM2031AN

10uF

10uH

UPM2031AN

MBR140WS

1K

0.1uF

10R

1uF

10K

150K

0.22uF

1uF

0.22uF

10K

0.1uF

10uF

/6V3

MBR140WS

10uH

UPM2032BN

10uF

LED-

10K

10K

10K

64.9K

1500pF

51K

51K

1500pF

82pF

CTL2

0.47uF

10K

VBAT

10uF

MBR140WS

MBR140WS

VLENS

+3V/300mA

10uH

10uF

CCD Bias

+12V/50mA

33pF

33pF

PVCC3

1-Li Battery Application 1