LM3311SQ National Semiconductor Corporation, LM3311SQ Datasheet - Page 2

• Manufacturer Part Number: LM3311SQ
• Description: Step-up Pwm Dc/dc Converter With Integrated Ldo, Op-amp, And Gate Pulse Modulation Switch
• Manufacturer: National Semiconductor Corporation

www.national.com
Connection Diagram
Ordering Information
Pin Descriptions
LM3311SQX-HIOP
LM3311SQX-HIOP
Pin
LM3311SQ-HIOP
LM3311SQ-HIOP
1
2
3
4
5
6
7
Order Number
LM3311SQX
LM3311SQX
LM3311SQ
LM3311SQ
VGHM
VDPM
Name
VFLK
OUT
AV
V
NC
DD
IN
NOPB
NOPB
NOPB
NOPB
Spec.
Not internally connected.
Output of GPM circuit. This output directly drives the supply for the gate driver circuits.
Determines when the TFT LCD is on or off. This is controlled by the timing controller in the LCD
module.
VDPM pin is the enable signal for the GPM block. Pulling this pin high enables the GPM while
pulling this pin low disables it. VDPM is used for timing sequence control.
Reference input for gate pulse modulation (GPM) circuit. The voltage at V
lower VGHM voltage. If the GPM function is not used connect V
Op-Amp analog power input.
Output of the Op-Amp.
Package Type
LLP-24
LLP-24
LLP-24
LLP-24
LLP-24
LLP-24
LLP-24
LLP-24
LLP-24 (Top View)
θ
JA
=37°C/W
2
NSC Package Drawing
SQA24A
SQA24A
SQA24A
SQA24A
SQA24A
SQA24A
SQA24A
SQA24A
Function
20126304
1000 units/reel
tape and reel
4500 units/reel
tape and reel
1000 units/reel
tape and reel
4500 units/reel
tape and reel
1000 units/reel
tape and reel
4500 units/reel
tape and reel
1000 units/reel
tape and reel
4500 units/reel
tape and reel
DD
to V
IN
Supplied As
.
DD
is used to set the