MIC5201-4.8

Product Summary

The MIC5201-4.8 is a Low-Dropout Voltage Regulator. The MIC5201-4.8 is an efficient linear voltage regulator with very low dropout voltage (typically 17mV at light loads and 200mV at 100mA), and very low ground current (1mA at 100mA output), offering better than 1% initial accuracy with a logic compatible on-off switching input. Designed especially for hand-held battery powered devices, the MIC5201-4.8 can be switched by a CMOS or TTL compatible enable signal. This enable control may be connected directly to VIN if unneeded. When disabled, power consumption drops nearly to zero. The ground current of the MIC5201-4.8 increases only slightly in dropout, further prolonging battery life. Key features include current limiting, over temperature shutdown, and protection against reversed battery. The MIC5201-4.8 is available in several fixed voltages and accuracy configurations. The applications of the MIC5201-4.8 include Cellular telephones, Laptop, notebook, and palmtop computers, Battery powered equipment, PCMCIA VCC and VPP regulation/switching, Bar code scanners, SMPS post-regulator/ dc-to-dc modules and High-efficiency linear power supplies.

Parametrics

MIC5201-4.8 absolute maximum ratings: (1)Supply Input Voltage: –20V to +60V; (2)Supply Input Voltage: –20V to +20V; (3)Enable Input Voltage: –20V to +60V; (4)Enable Input Voltage: –20V to +20V; (5)Power Dissipation: Internally Limited; (6)Junction Temperature: –40℃ to +125℃; (7)Lead Temperature: 260℃.

Features

MIC5201-4.8 features: (1)High output voltage accuracy; (2)Variety of output voltages; (3)Guaranteed 200mA output; (4)Low quiescent current; (5)Low dropout voltage; (6)Extremely tight load and line regulation; (7)Very low temperature coefficient; (8)Current and thermal limiting; (9)Reversed-battery protection; (10)Load-dump protection (fixed voltage versions); (11)Zero off-mode current; (12)Logic-controlled electronic enable; (13)Available in SO-8 and SOT-223 packages.

Diagrams