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LP2950 数据表(PDF) 17 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
部件名 LP2950
功能描述  Series of Adjustable Micropower Voltage Regulators
PDF  26 Pages
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制造商  NSC [National Semiconductor (TI)]
网页  http://www.national.com
标志 NSC - National Semiconductor (TI)

LP2950 数据表(HTML) 17 Page - National Semiconductor (TI)

Back Button LP2950 Datasheet HTML 13Page - National Semiconductor (TI) LP2950 Datasheet HTML 14Page - National Semiconductor (TI) LP2950 Datasheet HTML 15Page - National Semiconductor (TI) LP2950 Datasheet HTML 16Page - National Semiconductor (TI) LP2950 Datasheet HTML 17Page - National Semiconductor (TI) LP2950 Datasheet HTML 18Page - National Semiconductor (TI) LP2950 Datasheet HTML 19Page - National Semiconductor (TI) LP2950 Datasheet HTML 20Page - National Semiconductor (TI) LP2950 Datasheet HTML 21Page - National Semiconductor (TI) Next Button
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Typical Applications (Continued)
Low Drift Current Source
5 Volt Current Limiter
00854608
00854610
*Minimum input-output voltage ranges from 40mV to 400mV, depending on
load current. Current limit is typically 160mA.
Regulator with Early Warning and Auxiliary Output
Latch Off When Error Flag Occurs
00854611
j Early warning flag on low input voltage
j Main output latches off at lower input voltages
j Battery backup on auxiliary output
j Operation: Reg. #1’s Vout is programmed one diode drop above 5V. Its
error flag becomes active when Vin ≤ 5.7V. When Vin drops below 5.3V, the
error flag of Reg. #2 becomes active and via Q1 latches the main output off.
When Vin again exceeds 5.7V Reg. #1 is back in regulation and the early
warning signal rises, unlatching Reg. #2 via D3.
00854612
www.national.com
17



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