MIC39301-18BU

$1.11

Description：3 AMP LOW VOLTAGE LOW-DROPOUT
Series：*
Mfr：Micrel Inc.
Package：Bulk

SKU:7bc2a44725fc Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Brand: Micrel Inc.

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Product introduction

MIC39301-18BU is listed in the Voltage Regulators - Linear, Low Drop Out (LDO) Regulators range at ChipApex. The manufacturer field lists Micrel Inc.. Its product description is 3 AMP LOW VOLTAGE LOW-DROPOUT. Review the specifications below when checking this part for your BOM.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators specifications for MIC39301-18BU

Description：3 AMP LOW VOLTAGE LOW-DROPOUT
Series：*
Mfr：Micrel Inc.
Package：Bulk
Output Configuration：-
Output Type：-
Number of Regulators：-
Voltage - Input (Max)：-
Voltage - Output (Min/Fixed)：-
Voltage - Output (Max)：-
Voltage Dropout (Max)：-
Current - Output：-
Current - Quiescent (Iq)：-
Current - Supply (Max)：-
PSRR：-
Control Features：-
Protection Features：-
Operating Temperature：-
Mounting Type：-
Package / Case：-
Supplier Device Package：-
Grade：-
Qualification：-

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators datasheet and documents for MIC39301-18BU

MIC39301-18BU

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The MIC39301-18BU is a Micrel low dropout linear voltage regulator providing a fixed 1.8 V output with a maximum current of 3.0 A. It utilizes Super Beta PNP technology to achieve a typical dropout voltage of 385 mV at full load and a maximum of 550 mV across temperature ranges. The device features an enable pin compatible with TTL/CMOS logic levels and includes an error flag output for system monitoring. Integrated protections include current limiting, thermal shutdown, reversed-battery protection, and reversed-leakage protection.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

Super Beta PNP pass element enables extremely low dropout voltage and ground current
TTL/CMOS compatible enable pin allows precise power management control
Error flag output provides status indication for fault conditions
Integrated reversed-battery and reversed-leakage protection safeguards the circuit

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

Low-voltage microcontroller power supplies
StrongARM processor supply
SMPS post regulation
PC add-in card power distribution

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific suffix 'BU' against the manufacturer's official datasheet to confirm package type and tape/reel specifications. Ensure the fixed 1.8 V output variant matches the design requirement, as other suffixes may indicate adjustable or different voltage options. Confirm RoHS compliance status through the latest component documentation before finalizing procurement.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a high-current 1.8 V rail is required with minimal input-output voltage differential. The fixed output eliminates external resistor networks, simplifying PCB layout compared to adjustable variants. Verify that the application does not require the error flag feature if choosing the MIC39300 variant, or the adjustable option if using the MIC39302.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

Micrel was acquired by Microchip Technology in 2015. The MIC39301 belongs to the MIC39300 series of 3.0 A low dropout regulators. This family is designed for high-efficiency linear power supplies and multimedia applications requiring stable voltage regulation under heavy loads.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Compatible substitutes within the same series include MIC39300 (fixed output without enable/flag) and MIC39302 (adjustable output). Cross-manufacturer equivalents should be evaluated based on the 3.0 A current rating and 1.8 V fixed output specification.

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Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.