Product Summary

The LP2951ACM is a micropower voltage regulator with very low quiescent current (75μA typ.) and very low dropout voltage (typ. 40mV at light loads and 380mV at 100mA). The device is ideally suited for use in battery-powered systems. Furthermore, the quiescent current of the LP2951ACM increases only slightly in dropout, prolonging battery life. The LP2951ACM is available in the surface-mount D-Pak package, and in the popular 3-pin TO-92 package for pincompatibility with older 5V regulators.

Parametrics

LP2951ACM absolute maximum ratings: (1)Input Supply Voltage: -0.3 to +30V; (2)FEEDBACK Input Voltage: -1.5 to +30V; (3)Power Dissipation: Internally Limited; (4)Junction Temperature (TJ): +150℃; (5)Ambient Storage Temperature: -65℃ to +150℃.

Features

LP2951ACM features: (1)5V, 3V, and 3.3V versions available; (2)High accuracy output voltage; (3)Guaranteed 100mA output current; (4)Extremely low quiescent current; (5)Low dropout voltage; (6)Extremely tight load and line regulation; (7)Very low temperature coefficient; (8)Use as Regulator or Reference; (9)Needs minimum capacitance for stability; (10)Current and Thermal Limiting; (11)Stable with low-ESR output capacitors (10mΩ to 6Ω).

Diagrams

LP2951ACM block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LP2951ACM
LP2951ACM

National Semiconductor (TI)

Low Dropout (LDO) Regulators

Data Sheet

0-1: $0.50
1-25: $0.42
25-100: $0.37
100-250: $0.32
LP2951ACM/NOPB
LP2951ACM/NOPB

National Semiconductor (TI)

Low Dropout (LDO) Regulators SERIES OF ADJUSTABLE MICROPOWER VLTG REGS

Data Sheet

0-1: $0.56
1-25: $0.44
25-100: $0.38
100-250: $0.33
LP2951ACM-3.3/NOPB
LP2951ACM-3.3/NOPB

National Semiconductor (TI)

Low Dropout (LDO) Regulators Adj Micropower Vltg Reg

Data Sheet

0-1: $0.56
1-25: $0.44
25-100: $0.38
100-250: $0.33
LP2951ACM-3.0/NOPB
LP2951ACM-3.0/NOPB

National Semiconductor (TI)

Low Dropout (LDO) Regulators

Data Sheet

0-1: $0.56
1-25: $0.44
25-100: $0.38
100-250: $0.33
LP2951ACM-3.3
LP2951ACM-3.3

National Semiconductor (TI)

Low Dropout (LDO) Regulators

Data Sheet

0-1330: $0.27
1330-2565: $0.25
2565-5035: $0.24
5035-10070: $0.23
LP2951ACM-3.0
LP2951ACM-3.0

National Semiconductor (TI)

Low Dropout (LDO) Regulators

Data Sheet

0-1330: $0.27
1330-2565: $0.25
2565-5035: $0.24
5035-10070: $0.23
LP2951ACMM-3.3/NOPB
LP2951ACMM-3.3/NOPB

National Semiconductor (TI)

Low Dropout (LDO) Regulators

Data Sheet

0-1: $0.57
1-25: $0.45
25-100: $0.41
100-250: $0.35
LP2951ACMM-3.0/NOPB
LP2951ACMM-3.0/NOPB

National Semiconductor (TI)

Low Dropout (LDO) Regulators

Data Sheet

0-1: $0.57
1-25: $0.45
25-100: $0.41
100-250: $0.35