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MIC5233YM5-TR

100mA High-Voltage LDO, 2.3-36V input, adjustable output, 18uA Iq, SOT-23-5

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Manufacturer Part：

MIC5233YM5-TR

Package：

SOT-23-5 (2.9 x 1.6 x 1.1 mm)

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Description

Product Overview

The MIC5233YM5-TR is a high-input-voltage, low quiescent current LDO regulator manufactured by Microchip Technology. It provides 100mA output current with ultra-low ground current of 18uA and dropout voltage of 270mV at full load. The device accepts input voltages up to 36V, making it ideal for multi-cell Li-Ion battery systems and automotive applications.

Key Specifications

Input Voltage Range 2.3V to 36V
Output Voltage Adjustable (1.24V to 20V)
Output Current 100mA
Dropout Voltage 270mV at 100mA
Ground Current 18uA typical
Output Accuracy +/-2.0% over temperature
Shutdown Current 0.1uA typical
Operating Temperature -40C to +125C
Package SOT-23-5

Features

  • Wide input voltage range up to 36V
  • Ultra-low ground current of 18uA
  • Low dropout voltage of 270mV at 100mA
  • High output accuracy +/-2.0% over temperature
  • Stable with ceramic or tantalum output capacitors
  • Near-zero shutdown current (0.1uA)
  • Reverse battery and reverse leakage protection
  • Thermal shutdown and current limit protection
  • AEC-Q100 qualified

Applications

  • Keep-alive supply in notebook computers
  • USB power supply
  • Automotive electronics
  • Battery-powered systems
  • 3-4 cell Li-Ion battery input systems

The MIC5233YM5-TR from Microchip Technology is a high-input-voltage, low quiescent current LDO regulator designed for battery-powered and automotive applications. With an input voltage range of 2.3V to 36V and ultra-low ground current of 18uA, it is ideally suited for multi-cell Li-Ion battery systems. The device features adjustable output voltage from 1.24V to 20V, dropout voltage of 270mV at 100mA, and output accuracy of +/-2.0% over temperature. Its uCap design ensures stability with ceramic or tantalum output capacitors.

The MIC5233 operates as a low-dropout linear regulator using a PNP pass transistor. The high-voltage input stage allows operation up to 36V while maintaining low quiescent current. The enable pin provides shutdown capability with near-zero current consumption (0.1uA). Internal protection circuits include thermal shutdown that activates when junction temperature exceeds safe limits, current limiting to protect against output overloads, and reverse battery protection that prevents damage from incorrect supply polarity. The adjustable version uses an external resistor divider to set the output voltage with a 1.24V reference.

Pin Name Type Function
1 IN Power Input voltage (2.3-36V)
2 GND Power Ground
3 EN Control Enable (active high)
4 ADJ Feedback Output voltage adjustment feedback
5 OUT Output Regulated output voltage
  • Keep-alive power supply in notebook and portable computers
  • USB power regulation and logic supply
  • Automotive electronic subsystems
  • 3-4 cell Li-Ion battery powered devices
  • Industrial control and instrumentation backup power
Manufacturer Part Number Package Notes
Microchip MIC5233BM5-TR SOT-23-5 Fixed 5.0V output version
Texas Instruments TLV70450DBVR SOT-23-5 24V input, 150mA LDO
onsemi NCP511SN SOT-23-5 80mA, 24V input LDO
ROHM BU4S11G2 SSOT-5 36V input, 50mA LDO
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Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Shipping & Payment

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Service & Packaging

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

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