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ME2188A50XG

Model

ME2188A50XG

Category

integrated_circuits
power_ics

The ME2188A50XG is a compact boost converter optimized for 5V output in space-constrained applications. Its synchronous rectification and built-in switch enable efficient power conversion from 900mV to 5V inputs, suitable for IoT devices and portable electronics. While cost-effective and thermally robust (-40°C to +125°C operation), its current limitations and lack of advanced protections restrict use in high-power or safety-critical systems.

Reference Pricing

10+ :$0.056
100+ :$0.0476
300+ :$0.0392
3000+ :$0.0448
6000+ :$0.0392
9000+ :$0.0378

Reference Stock

Available:Unknown

Specifications

Conversion Efficiency96%
Input Voltage Range0.9V - 5V
Load Regulation20mV - 30mV
On-ResistanceDependent on specific application
Operating Temperature Range-40℃ - 125℃
Output CurrentDependent on specific application
Output Voltage3.3V
Package TypeSOT-23
Rated Voltage3.3V
Ripple VoltageDependent on specific application
Switching Frequency320kHz
Switching LossDependent on specific application
Thermal ResistanceDependent on specific application

Function And Role

Core Function

5V boost DC-DC converter with synchronous rectification

Key Characteristics

  • Output voltage: 5V
  • Output current: 300mA
  • Input voltage range: 900mV~5V
  • Switching frequency: 320kHz
  • Built-in switch and synchronous rectifier
  • Operating temperature: -40°C~+125°C
  • SOT-23 package (3.2mm x 2.5mm package)

Application Domains

Basic Scenarios

  • Low-power IoT sensors
  • Portable medical devices
  • Wearable electronics
  • Battery-powered consumer electronics

Extended Scenarios

  • Industrial control systems
  • Automotive electronic modules
  • Wireless charging receivers
  • Solar-powered edge devices

Precautions

Soldering

Use 2-3 seconds of 260°C reflow profile with 3mm solder paste

Current Limit

Max output current 300mA (derate to 70% at +85°C)

Voltage Limit

Input range 900mV~5V; output must not exceed 5.5V

Thermal Management

Thermal resistance 25°C/W; limit junction temperature to +150°C

Storage

Store in <10% relative humidity, -40°C~85°C

Risk Warnings
  • Leakage current exceeds 50μA when reverse biased
  • ESD sensitivity: HBM 3000V
  • Overvoltage protection triggers at 6V input

Alternative Model Params

  • Output voltage tolerance (±2%)
  • Switching frequency range (250-450kHz)
  • Package dimensions (SOT-23, 3.2x2.5mm)
  • Max junction temperature (+150°C)
  • Input voltage range (800mV~5.5V)

Design Recommendations

Layout

Keep switching loop <10mm; use 0.1μF ceramic capacitor at input/output

Thermal

Apply 50μm thick copper pour for heat dissipation

Compatibility

Pair with MICRONE MEF1S050C3G for input filtering

Testing

Validate stability at 0.1V output ripple under 100mA load

Market Positioning

Strengths
  • Cost-efficient (USD $0.0367@9000 units)
  • Space-saving 2.5mm height
  • R RoHS compliance
  • Fast global shipping
Weaknesses
  • Limited to 5V output
  • Max current 300mA
  • No integrated protection for reverse polarity
  • No automotive-grade certification

Datasheet

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