MIC29302WU

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1. Description

The MIC2915x/2930x/2950x/2975x are high current, high accuracy, low dropout voltage regulators. Using Microchip’s proprietary Super βeta PNP process with a PNP pass element, these regulators feature 350 mV to 425 mV (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 MIC2915x/2930x/2950x/2975x 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 that 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 MIC2915x/2930x/2950x are available in 3-pin and 5-pin TO-220 and surface mount TO-263 (D2Pak) packages. The MIC2975x 7.5A regulators are available in a 5-pin TO-247 package. The 1.5A, adjustable output MIC29152 is available in a 5-pin power D-Pak (TO-252) package.

2. Features

    1. High Current Capability:

        - MIC29150/29151/29152/29153: 1.5A

        - MIC29300/29301/29302/29303: 3A

        - MIC29500/29501/29502/29503: 5A

        - MIC29751/29752: 7.5A

    2. Low Dropout Voltage

    3. Low Ground Current

    4. Accurate 1% Guaranteed Tolerance

    5. Extremely Fast Transient Response

    6. Reverse-Battery and “Load Dump” Protection

    7. Zero-Current Shutdown Mode (5-Pin Versions)

    8. Error Flag Signals Output Out-of-Regulation (5-Pin Versions)

    9. Also Characterized for Smaller Loads with Industry-Leading Performance Specifications

  10. Fixed-Voltage and Adjustable Versions

3. Applications

    1. Battery-Powered Equipment

    2. High-Efficiency Green Computer Systems

    3. Automotive Electronics

    4. High-Efficiency Linear Power Supplies

    5. High-Efficiency Post-Regulator for Switching Supply

4. Pin configuration

5. Pin description

6. Application information

MIC2915x, MIC2930x, MIC2950x and MIC2975x Is a high-performance low-dropout regulator Suitable for all medium and high current voltages Regulator application. Their typical value is 350 mV to 425 mV The pressure difference at full load makes them special Very valuable in battery-powered systems, and up to Efficiency noise filter in post-regulator applications. Different from the old NPN pass transistor design, where The minimum pressure difference is limited by the base-emitter Voltage drop and collector-emitter saturation voltage, The dropout performance of these PNP outputs The device is only limited by low VCE saturation Voltage. The trade-off of low dropout voltage is the base of change The driver requested. But Microchip’s Super ßeta PNP The process reduces this drive requirement to only 1% Load current. MIC2915x/2930x/2950x/2975x series voltage regulator Complete protection from damage caused by fault conditions. Provide current limit. This limit is linear; The output current under overload conditions is constant. Thermal shutdown disables the device if the chip fails Maximum safety when temperature exceeds +125°C Operating temperature. Line transient protection allowed Equipment and load even at input voltage Spikes between –20V and +60V. When typing Voltage exceeds about 32V, overvoltage The sensor disables the regulator. Output structure These regulators allow voltages to exceed No need to reverse to apply the required output voltage Current. Available in MIC29xx1 and MIC29xx2 versions Logic level on/off control. When disabled, The device consumes almost zero current. Another feature of this regulator series is Common pinout. The current requirements of the design may Change up or down, but use the same board layout Because all these regulators have the same pinout.