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MIC5303
  • MIC5303

MIC5303

In Production

The MIC5303 is an ultra-small, ultra-low dropout CMOS regulator, ULDO™ that is ideal for today's most demanding portable applications including cellular phone RF power, camera modules, imaging sensors for digital still and video cameras, PDAs, portable media players (PMPs), and PC cameras where board space is limited. It offers extremely low dropout voltage, very low output noise, and can operate from a 2.3V to 5.5V input while delivering up to 300mA. It offers 2% initial accuracy, low ground current (typically 85µA total), and thermal and current limit protection. The MIC5303 can also be put into a zero off-mode current state, drawing no current when disabled. ...

Microchip Technology MIC5303 Product Info

16 April 2026 0

Parameters

VIN Min (V) V (volt)

2.3

VIN Max V (volt)

5.5

VOUT V (volt)

1.5, 1.8, 2.1, 2.5, 2.6, 2.8, 2.85, 2.9, 3.0, 3.3

IOUT #1 Max mA (milliampere)

300

Rated IOUT Max mA (milliampere)

300

Quiescent Current µA (microampere)

85

Voltage Drop Typ (mV)

100

Accuracy (+/-) %

3

Adjustable VOUT

No

Reverse Battery

No

Bypass Pin

No

Current Limit

Yes

Shutdown EN

Yes

Power Good Signal

No

Thermal Shutdown

Yes

Features

  • Low dropout voltage: 100mV at 300mA
  • Output noise: 120µVrms
  • Input voltage range: 2.3V to 5.5V
  • 300mA guaranteed output current
  • Stable with ceramic output capacitors
  • Low quiescent current: 85µA total
  • 35µs turn-on time
  • ±2% initial accuracy
  • ±3% over temperature
  • Thermal shutdown and current limit protection

Description

The MIC5303 is an ultra-small, ultra-low dropout CMOS regulator, ULDO™ that is ideal for today's most demanding portable applications including cellular phone RF power, camera modules, imaging sensors for digital still and video cameras, PDAs, portable media players (PMPs), and PC cameras where board space is limited. It offers extremely low dropout voltage, very low output noise, and can operate from a 2.3V to 5.5V input while delivering up to 300mA.

It offers 2% initial accuracy, low ground current (typically 85µA total), and thermal and current limit protection. The MIC5303 can also be put into a zero off-mode current state, drawing no current when disabled.

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