MIC29302BT 
DataSheet
- 3A High-Current Low-Dropout Regulators
- Zero-current shutdown mode
- Error flag signals output out-of-regulation
- 5-pin TO220 Package
General Description
The MIC29302 are high current, high accuracy, low-dropout voltage regulators. Using Micrel's proprietary Super ?eta 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 MIC29302 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 MIC29xx2, the ENABLE pin may be tied to VIN if it is not required for ON/OFF control. The MIC29302 are available in 5-pin TO-220
Features
- High current capability 3A
- 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 industry-leading 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