Product Summary

The LP2902M is a micropower voltage regulator with very low quiescent current (130 μA typical at 1 mA load) and very low dropout voltage (typ. 60 mV at light load and 470 mV at 250 mA load current). The device is ideally suited for battery-powered systems. Furthermore, the quiescent current increases only slightly at dropout, which prolongs battery life. The LP2902M retains all the desirable characteristics of the LP2951, but offer increased output current, additional features, and an improved shutdown function. The internal crowbar pulls the output down quickly when the shutdown is activated. The applications of the LP2902M include High-efficiency linear regulator, Regulator with under-voltage shutdown, Low dropout battery-powered regulator, Snap-ON/Snap-OFF regulator.

Parametrics

LP2902M absolute maximum ratings: (1)Storage Temperature Range: -65℃ ≤ TA ≤ +150℃; (2)Operating Temperature Range: -40℃ ≤ TJ ≤ +125℃; (3)Lead Temp (Soldering, 5 seconds): 260℃; (4)Power Dissipation (Note 2): Internally Limited; (5)Input Supply Voltage: -20V to +30V; (6)Feedback Input Voltage (Note 3): -0.3V to +5V; (7)Comparator Input Voltage (Note 4): -0.3V to +30V; (8)Shutdown Input Voltage (Note 4): -0.3V to +30V; (9)Comparator Output Voltage (Note4): -0.3V to +30V; (10)ESD Rating (Note 15): 2 kV.

Features

LP2902M features: (1)Output voltage adjusts from 1.23V to 29V; (2)Guaranteed 250 mA output current; (3)Extremely low quiescent current; (4)Low dropout voltage; (5)Extremely tight line and load regulation; (6)Very low temperature coefficient; (7)Current and thermal limiting; (8)Reverse battery protection; (9)50 mA (typical) output pulldown crowbar; (10)5V and 3.3V versions available.

Diagrams

LP2902M block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
LP2902M
LP2902M
National Semiconductor (TI)
Operational Amplifiers - Op Amps
Data Sheet
0-825: $0.41
825-1045: $0.39
1045-2530: $0.37
2530-5005: $0.35
LP2902M/NOPB
LP2902M/NOPB
National Semiconductor (TI)
Operational Amplifiers - Op Amps Quad Operational Amp
Data Sheet
0-1: $0.79
1-25: $0.63
25-100: $0.34
LP2902MX/NOPB
LP2902MX/NOPB
National Semiconductor (TI)
Operational Amplifiers - Op Amps
Data Sheet
0-1: $0.97
1-25: $0.77
25-100: $0.68
100-250: $0.59
LP2902MX
LP2902MX
National Semiconductor (TI)
Operational Amplifiers - Op Amps
Data Sheet
0-2500: $0.32
2500-5000: $0.29