Product Summary

The MIC2951-03BM is a bulletproof micropower voltage regulators with very low dropout voltage (typically 40mV at light loads and 250mV at 100mA), and very low quiescent current. Like their predecessors, the LP2950 and LP2951, the quiescent current of the MIC2950/MIC2951 increases only slightly in dropout, thus pro-longing battery life. The MIC2951-03BM is pin for pin compatible with the MIC2951-03BM, but offer lower dropout, lower quiescent current, reverse battery, and automotive load dump protection. The key additional features and protection offered include higher output current (150mA), positive transient protection for up to 60V (load dump), and the ability to survive an unregulated input voltage transient of -20V below ground (reverse battery). The MIC2951-03BM applications are: (1)Automotive electronics; (2)Voltage reference; (3)Avionics; (4)Cellular telephones; (5)Battery powered equipment; (6)SMPS post regulator; (7)High efficiency linear power supplies.

Parametrics

MIC2951-03BM absolute maximum ratings: (1)Input Supply Voltage (VIN)(5): -20 to +60V; (2)Feedback Input Voltage (VFB)(6, 7): -1.5 to +26V; (3)Shutdown Input Voltage (VSHDN)(6): -0.3 to +30V; (4)Power Dissipation (PD)(4): Internally Limited; (5)Lead Temperature (soldering, 5 sec.): 260℃; (6)Storage Temperature : -65℃ to +150℃.

Features

MIC2951-03BM features: (1)High accuracy 3.3, 4.85, or 5V, guaranteed 150mA output; (2)Extremely low quiescent current; (3)Low dropout voltage; (4)Extremely tight load and line regulation; (5)Very low temperature coefficient; (6)Use as regulator or reference; (7)Needs only 1.5uF for stability; (8)Current and thermal limiting; (9)Unregulated DC input can withstand -20V reverse battery and +60V positive transients.

Diagrams

 MIC2951-03BM pin connection

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
MIC2951-03BM
MIC2951-03BM


IC REG LDO 5V/ADJ .15A 8SOIC

Data Sheet

Negotiable 
MIC2951-03BM TR
MIC2951-03BM TR


IC REG LDO 5V/ADJ .15A 8SOIC

Data Sheet

0-2500: $0.34
MIC2951-03BMM TR
MIC2951-03BMM TR


IC REG LDO 5V/ADJ .15A 8-MSOP

Data Sheet

Negotiable 
MIC2951-03BMM
MIC2951-03BMM


IC REG LDO 5V/ADJ .15A 8-MSOP

Data Sheet

Negotiable