lm2711 National Semiconductor Corporation, lm2711 Datasheet - Page 2

• Manufacturer Part Number: lm2711
• Description: Step-up Pwm Dc/dc Converter Integrated With 4 Buffers
• Manufacturer: National Semiconductor Corporation

www.national.com
Connection Diagram
Pin Description
Pin
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
GMA4-out
GMA3-out
GMA2-out
GMA1-out
GMA1-in
GMA2-in
GMA3-in
GMA4-in
FSLCT
AGND
SHDN
Name
GND
V
Vs+
V
NC
NC
SS
V
FB
SW
IN
C
Power switch input.
Switching Regulator Power input.
Shutdown pin, active low.
Frequency Select pin. FSLCT = V
Gamma Buffer input supply.
Gamma Buffer input.
Gamma Buffer input.
Gamma Buffer input.
Gamma Buffer input.
No Connection, leave open.
No Connection, leave open.
Gamma Buffer output.
Gamma Buffer output.
Gamma Buffer output.
Gamma Buffer output.
Soft start pin.
Boost Compensation Network Connection.
Output Voltage Feedback input.
Gamma Buffer ground, Analog ground connection for Regulator.
Switch Power Ground.
T
JMAX
= 125˚C, θ
TSSOP 20 package
Top View
JA
2
= 120˚C/W (Note 1)
IN
for 1.25 MHz, FSLCT = AGND or floating for 600kHz.
Function
20046804