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LM5000 Datasheet(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Part No. LM5000
Description  High Voltage Switch Mode Regulator
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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LM5000 Datasheet(HTML) 3 Page - National Semiconductor (TI)

 
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Pin Description
Pin
Name
Function
1
COMP
Compensation network connection. Connected to the output of the voltage error amplifier.
The RC compenstion network should be connected from this pin to AGND. An additional
100pF high frequency capacitor to AGND is recommended.
2
FB
Output voltage feedback input.
3
SHDN
Shutdown control input, Open = enable, Ground = disable.
4
AGND
Analog ground, connect directly to PGND.
5
PGND
Power ground.
6
PGND
Power ground.
7
PGND
Power ground.
8
PGND
Power ground.
9
SW
Power switch input. Switch connected between SW pins and PGND pins
10
SW
Power switch input. Switch connected between SW pins and PGND pins
11
SW
Power switch input. Switch connected between SW pins and PGND pins
12
BYP
Bypass-Decouple Capacitor Connection, 0.1µF ceramic capacitor recommended.
13
V
IN
Analog power input. A small RC filter is recommended, to suppress line glitches. Typical
values of 10
Ω and ≥ 0.1µF are recommended.
14
SS
Softstart Input. External capacitor and internal current source sets the softstart time.
15
FS
Switching frequency select input. Open = F
high. Ground = Flow
16
TEST
Factory test pin, connect to ground.
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