29750

Features:

•High Current Capability
  MIC29150/29151/29152/29153................................1.5A
  MIC29300/29301/29302/29303...................................3A
  MIC29500/29501/29502/29503...................................5A
  MIC29750/29751/29752...........................................7.5A
•Low-Dropout Voltage..........................350mV at Full Load
•Low Ground Current
•Accurate 1% Guaranteed Tolerance
•Extremely Fast Transient Response
•Reverse-battery and "Load Dump" Protection
•Zero-Current Shutdown Mode (5-Pin versions)
•Error Flag Signals Output Out-of-Regulation(5-Pin versions)
•Also Characterized For Smaller Loads With Industry-Leading Performance Specifications
•Fixed Voltage and Adjustable Versions


Application

•Battery Powered Equipment
•High-Efficiency "Green" Computer Systems
•Automotive Electronics
•High-Efficiency Linear Power Supplies
•High-Efficiency Post-Regulator For Switching Supply


Pinout




Specifications

Power Dissipation .................................... Internally Limited
Lead Temperature (Soldering, 5 seconds)................ 260°C
Storage Temperature Range .................65°C to +150°C
Input Supply Voltage (Note 1) ....................... 20V to +60V

Description

The MIC29150/29300/29500/29750 are high current, highaccuracy, low-dropout voltage regulators. Using Micrel'sproprietary Super ßeta PNP™ process with a PNP passelement, these regulators feature 300mV to 370mV (full load)dropout voltages and very low ground current. Designed forhigh current loads, these devices also find applications inlower current, extremely low dropout-critical systems, where their tiny dropout voltage and ground current values are important attributes.

The MIC29150/29300/29500/29750 are fully protected againstovercurrent faults, reversed input polarity, reversed lead insertion, overtemperature operation, and positive and nega-tive transient voltage spikes. Five pin fixed voltage versions feature logic level ON/OFF control and an error flag which signals whenever the output falls out of regulation. Flagged states include low input voltage (dropout), output current limit, overtemperature shutdown, and extremely high voltage spikes on the input.

On the MIC29xx1 and MIC29xx2, the ENABLE pin may be tied to VIN if it is not required for ON/OFF control. TheMIC29150/29300/29500 are available in 3- and 5-pin TO-220and surface mount TO-263 packages. The MIC29750 7.5A regulators are available in 3- and 5-pin TO-247 packages.