LP2951ACMM National Semiconductor, LP2951ACMM Datasheet - Page 17

• Manufacturer Part Number: LP2951ACMM
• Description: LDO VOLTAGE REGULATOR IC
• Manufacturer: National Semiconductor

Specifications of LP2951ACMM

• Dropout Voltage Vdo: 380mV
• No. Of Pins: 8
• Output Current: 0.1A
• Mounting Type: Surface Mount
• Voltage Regulator Type: LDO Linear
• Peak Reflow Compatible (260 C): No
• Output Voltage: 5V
• Output Voltage Max: 29V
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Typical Applications
error flag becomes active when V
error flag of Reg. #2 becomes active and via Q1 latches the main output off.
When V
warning signal rises, unlatching Reg. #2 via D3.
j
j
j
j
Early warning flag on low input voltage
Main output latches off at lower input voltages
Battery backup on auxiliary output
Operation: Reg. #1’s V
Regulator with Early Warning and Auxiliary Output
in
again exceeds 5.7V Reg. #1 is back in regulation and the early
Low Drift Current Source
out
is programmed one diode drop above 5V. Its
in
≤ 5.7V. When V
(Continued)
in
drops below 5.3V, the
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*Minimum input-output voltage ranges from 40mV to 400mV, depending on
load current. Current limit is typically 160mA.
Latch Off When Error Flag Occurs
5 Volt Current Limiter
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