MIC29302WU-TR

General Description

The MIC29150/29300/29500/29750 are high current, high accuracy, low-dropout voltage regulators. Using Micrel's proprietary Super βeta PNP® process with a PNP pass element, these regulators feature 350mV to 425mV (full load) typical dropout voltages and very low ground current. Designed for high current loads, these devices also find applications in lower 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 against overcurrent faults, reversed input polarity, reversed lead insertion, overtemperature operation, and positive and negative 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. The MIC29150/29300/29500 are available in 3-pin and 5-pin TO-220 and surface mount TO-263 (D2 Pak) packages. The MIC29750 7.5A regulators are available in 3-pin and 5-pin TO-247 packages. The 1.5A, adjustable output MIC29152 is available in a 5-pin power D-Pak (TO-252) package.

For applications with input voltage 6V or below, see MIC37xxx LDOs. Data sheets and support documentation can be found on Micrel’s web site at www.micrel.com. 

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

• 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 industryleading performance specifications

• Fixed voltage and adjustable versions 

Applications

• Battery powered equipment

• High-efficiency “Green” computer systems

• Automotive electronics

• High-efficiency linear lower supplies

• High-efficiency lost-regulator for switching supply

Typical Application

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