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Product attributes Property Value
Manufacturer Monolithic Power Systems Inc.
Product Series MP
Packaging Tape & Reel (TR) |
Output Configuration Positive
Output Type Fixed
Number of Regulators 1
Voltage - Input (Max) 40V
Voltage - Output (Min/Fixed) 3.3V
Voltage - Output (Max) -
Voltage Dropout (Max) 0.64V @ 300mA
Current - Output 300mA
Current - Quiescent (Iq) 16 μA
Current - Supply (Max) 95 μA
PSRR 45dB (1kHz), 57dB ~ 51dB (100Hz ~ 100kHz)
Control Features Enable, Power Good
Protection Features Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO)
Operating Temperature -40°C ~ 125°C (TJ)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width) Exposed Pad
Supplier Device Package 8-SOIC-EP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The MP2019GN-33-P from Monolithic Power Systems is a fixed 3.3V low-dropout linear regulator designed for power-sensitive applications. It delivers up to 300mA with a dropout voltage of just 0.64V at full load. Its 16 μA quiescent current minimizes standby power, while the 8-SOIC-EP package provides excellent thermal performance. Ideal for battery-powered and industrial systems requiring a clean, stable voltage rail.

  • Extended Battery Life: Ultra-low 16 μA quiescent current reduces standby drain in portable devices.
  • High Efficiency at Low Dropout: 0.64V dropout at 300mA allows operation from nearly depleted batteries.
  • Clean Output: PSRR of 45dB at 1kHz filters supply noise for sensitive analog circuits.
  • Thermal Management: Exposed pad in 8-SOIC-EP package improves heat dissipation for reliable high-current operation.

Battery-Powered IoT Sensors

The ultra-low 16 μA quiescent current extends battery life in always-on IoT sensor nodes, where standby power dominates.

Portable Medical Devices

With a stable 3.3V rail and 300mA capability, it powers microcontrollers and analog front-ends in glucose monitors and pulse oximeters.

Industrial Control Modules

The 8-SOIC-EP package with exposed pad aids thermal dissipation, supporting reliable operation in 24V industrial bus-powered sensors.

Automotive Infotainment

Provides clean 3.3V for CAN transceivers and audio codecs, with PSRR of 45dB at 1kHz to reject alternator noise.

Smart Home Hubs

Regulates 3.3V for Wi-Fi modules and Zigbee radios, ensuring consistent performance during RF burst transmissions up to 300mA.

Wearable Fitness Trackers

The low dropout of 0.64V allows operation from a single Li-ion cell down to 3.94V, maximizing usable battery capacity.

Q: What is the output voltage of the MP2019GN-33-P?
A: The MP2019GN-33-P provides a fixed 3.3V output.
Q: What is the maximum output current?
A: It can deliver up to 300mA of continuous output current.
Q: What is the input voltage range?
A: The input voltage range is not specified in the provided data; please refer to the official datasheet for full specifications.
Q: What is the dropout voltage?
A: The dropout voltage is 0.64V at a 300mA load.
Q: What is the quiescent current?
A: The quiescent current is a low 16 μA, making it suitable for battery-powered applications.
Q: What package is available?
A: It is available in an 8-SOIC-EP package.
Base Product Number : MP2019GN-33
3.3V 300mA 8-SOIC-EP LDO Linear Regulator Low Quiescent Current MPS
Q: What is the output voltage of the MP2019GN-33-P?
A: The MP2019GN-33-P provides a fixed 3.3V output.
Q: What is the maximum output current?
A: It can deliver up to 300mA of continuous output current.
Q: What is the input voltage range?
A: The input voltage range is not specified in the provided data; please refer to the official datasheet for full specifications.
Q: What is the dropout voltage?
A: The dropout voltage is 0.64V at a 300mA load.
Q: What is the quiescent current?
A: The quiescent current is a low 16 μA, making it suitable for battery-powered applications.
Q: What package is available?
A: It is available in an 8-SOIC-EP package.