at1731a Aimtron Technology, at1731a Datasheet - Page 2

• Manufacturer Part Number: at1731a
• Description: Dc-dc Power Ic For Tft Panel
• Manufacturer: Aimtron Technology

Pin Configurations
Ordering Information
*
Pin Description
Part Number
AT1731AP
AT1731AP_GRE
Pin N0.
For more marking information, contact our sales representative directly
7F, No.9,PARK AVENUE. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: [phone]
2/8/2006 REV:1.1
10
12
13
14
15
16
11
1
2
3
4
5
6
7
8
9
: Date Code
Symbol I / O
VDDP
VDDN
LX
Vin
COMP
FB
/SHDN
REF
GND
SS
FBP
SCP
FBN
SWN
SWP
PGND
O
O
O
O
P
P
P
P
P
TSSOP-16
TSSOP-16 , Green
I
I
I
I
I
I
I
Fax: [phone]
Description
Positive Charge-Pump Driver Supply Voltage. Bypass to power ground
with 0.1uF capacitor.
Negative Charge-Pump Driver Supply Voltage. Bypass to power
ground with 0.1uF capacitor.
Main Step-up Regulator N-MOS Drain. Place output diode and
inductor.
Input voltage pin of the device .Vin may range from 2.6V to 5.5V
Compensation pin for the main step-up converter. A series RC is
connected to this pin.
Main Step-Up Regulator Feedback Input. Connect a resistive divider
from main output to FB to analog ground.
Active-low shutdown control input. Pull SHDN low to force the
controller into shutdown. If unused, connect SHDN to Vin for normal
operation.
Internal Reference Output. External load capability up to 50uA.
Analog Ground.
Soft-start input. The capacitor connected to this pin to sets the
current-limited start time.
Positive Charge-Pump Regulator Feedback Input. Connect a resistive
divider from the positive charge-pump output to FBP to analog
ground.
Short Circuit Protection.
Negative Charge-Pump Regulator Feedback Input. Connect a resistive
divider from the negative charge-pump output to FBN to the reference.
Negative Charge-Pump Driver Output. Output high level is VDDN and
low level is PGND.
Positive Charge-Pump Driver Output. Output high level is VDDP and
low level is PGND.
Power Ground.
COMP
VDDN
VDDP
Package
SHDN
REF
Vin
LX
FB
2
3
5
6
7
8
1
4
2
Date Code
, Date code with one bottom line
DC-DC Power IC for TFT Panel
15
Preliminary Product Information
16
13
12
10
14
11
9
WWW:
PGND
SWP
SWN
FBN
SCP
FBP
SS
GND
Email:
Marking
http://www.aimtron.com.tw
[e-mail]
AT1731A