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LM3311 Scheda tecnica(PDF) 2 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Il numero della parte LM3311
Spiegazioni elettronici  Step-Up PWM DC/DC Converter with Integrated LDO, Op-Amp, and Gate Pulse Modulation Switch
PDF  29 Pages
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Produttore elettronici  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM3311 Scheda tecnica(HTML) 2 Page - National Semiconductor (TI)

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Connection Diagram
20126304
LLP-24 (Top View)
θ
JA=37˚C/W
Ordering Information
Order Number
Spec.
Package
Type
NSC Package Drawing
Supplied As
LM3311SQ
LLP-24
SQA24A
1000 units/reel
tape and reel
LM3311SQX
LLP-24
SQA24A
4500 units/reel
tape and reel
LM3311SQ
NOPB
LLP-24
SQA24A
1000 units/reel
tape and reel
LM3311SQX
NOPB
LLP-24
SQA24A
4500 units/reel
tape and reel
Pin Descriptions
Pin
Name
Function
1
NC
Not internally connected.
2
VGHM
Output of GPM circuit. This output directly drives the supply for the gate driver circuits.
3
VFLK
Determines when the TFT LCD is on or off. This is controlled by the timing controller in
the LCD module.
4
VDPM
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.
5V
DD
Reference input for gate pulse modulation (GPM) circuit. The voltage at V
DD is used to set
the lower VGHM voltage.
6AV
IN
Op-Amp analog power input.
7
OUT
Output of the Op-Amp.
8
NEG
Negative input terminal of the Op-Amp.
9
POS
Positive input terminal of the Op-Amp.
10
AGND
Analog ground for the step-up regulator, LDO, and Op-Amp. Connect directly to DAP and
PGND beneath the device.
11
ADJ
LDO output voltage feedback input.
12
V
OUT
LDO regulator output.
www.national.com
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