Product Summary

The MIC2954-03WS is a bulletproof efficient voltage regulator with very low dropout voltage (typically 40mV @ light loads and 375mV @ 250mA), and low quiescent current (120µA typical). The quiescent current of the MIC2954-03WS increases only slightly in dropout, thus prolonging battery life. Key MIC2954 features include protection against reversed battery, fold-back current limiting, and automotive load dump protection (60V positive transient). The applicaitons of the MIC2954-03WS are (1)Battery powered equipment; (2)Cellular telephones; (3)Laptop, notebook, and palmtop computers; (4)PCMCIA VCC and VPP regulation/switching; (5)Bar code scanners; (6)Automotive electronics; (7)SMPS post-regulator/dc-to-dc modules; (8)Voltage reference; (9)High-efficiency linear power supplies.

Parametrics

MIC2954-03WS absolute maximum ratings: (1)Supply Voltage (VIN): –20V to +60V; (2)Feedback Voltage (VFB): –1.5V to +26V; (3)Shutdown Input Voltage (VSHDN): –0.3V to +30V; (4)Error Output Voltage (VERR): –0.3V to +30V; (5)Power Dissipation (PD): Internally Limited; (6)Lead Temperature (soldering, 5 sec.): 260℃; (7)Storage Temperature (Ts):–65 to +150℃.

Features

MIC2954-03WS features: (1)High-accuracy 5V, guaranteed 250mA output; (2)Low quiescent current; (3)Low dropout voltage; (4)Extremely tight load and line regulation; (5)Very low temperature coefficient; (6)Current and thermal limiting; (7)Input can withstand –20V reverse battery and+60V positive transients; (8)Error flag warns of low output voltage; (9)Logic-controlled electronic shutdown; (10)Output programmable from 1.24V to 29V; (11)Available in TO-220, TO-92, and surface-mount SOT-223 and SOIC-8 packages.

Diagrams

MIC2954-03WS block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
MIC2954-03WS
MIC2954-03WS


IC REG LDO 5V .25A SOT223-3

Data Sheet

0-1: $0.96
1-25: $0.77
25-100: $0.58
100-250: $0.54
250-500: $0.52
MIC2954-03WS TR
MIC2954-03WS TR


IC REG LDO 5V .25A SOT223

Data Sheet

0-1: $0.96
1-25: $0.77
25-100: $0.58
100-250: $0.54
250-500: $0.52