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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 Adjustable
Number of Regulators 1
Voltage - Input (Max) 5.5V
Voltage - Output (Min/Fixed) 0.8V
Voltage - Output (Max) 5V
Voltage Dropout (Max) 0.28V @ 1A
Current - Output 1A
Current - Quiescent (Iq) -
Current - Supply (Max) 600 μA
PSRR 65dB ~ 33dB (100Hz ~ 1MHz)
Control Features Enable
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 MP20051DN-LF-P from Monolithic Power Systems is a fixed 5V output LDO regulator capable of delivering up to 1A. Featuring a low dropout voltage of 0.28V at full load and PSRR of 65dB at 100Hz, it provides clean and stable power for demanding digital and analog applications. The 8-SOIC-EP package ensures efficient heat dissipation for high-current operation.

  • High Output Current: Delivers up to 1A, suitable for powering multiple ICs or high-current loads from a single regulator.
  • Low Dropout Voltage: 0.28V dropout at 1A minimizes power loss and allows operation from lower input voltages.
  • Excellent Thermal Performance: The 8-SOIC-EP package with exposed pad enhances heat dissipation, ensuring reliable operation at high currents.
  • Broad Frequency Noise Rejection: PSRR of 65dB at 100Hz and 33dB at 1MHz provides effective filtering across a wide frequency range.

High-Current Digital Loads

With 1A output capability and a low dropout of 0.28V, it is ideal for powering FPGAs, ASICs, and high-performance microprocessors that require a stable 5V rail.

Industrial Control Systems

The 8-SOIC-EP package with exposed pad provides excellent thermal dissipation, making it suitable for industrial PLCs, motor controllers, and factory automation equipment.

Networking Equipment

Provides a clean 5V supply for routers, switches, and optical transceivers, with 65dB PSRR at 100Hz to filter mains-related ripple.

Test and Measurement Instruments

The high current capability and stable output support precision bench instruments, data acquisition systems, and signal generators.

Automotive Infotainment

While not explicitly automotive-rated, the robust package and 1A capability make it suitable for aftermarket infotainment systems and dash cameras.

5V Logic and Peripheral Power

Ideal for powering 5V logic families, USB peripherals, and relay drivers in mixed-signal systems, ensuring reliable switching and operation.

Q: What is the output voltage of the MP20051DN-LF-P?
A: The output voltage is fixed at 5V.
Q: What is the maximum output current?
A: This LDO can deliver up to 1A of 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.
Q: What is the dropout voltage?
A: The dropout voltage is 0.28V at a 1A load.
Q: What is the PSRR?
A: PSRR is 65dB at 100Hz and 33dB at 1MHz.
Q: What package is available?
A: It is available in an 8-SOIC-EP package.
Base Product Number : MP20051DN
1A 5V 8-SOIC-EP High Current LDO Linear Regulator Low Dropout Monolithic Power Systems
Q: What is the output voltage of the MP20051DN-LF-P?
A: The output voltage is fixed at 5V.
Q: What is the maximum output current?
A: This LDO can deliver up to 1A of 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.
Q: What is the dropout voltage?
A: The dropout voltage is 0.28V at a 1A load.
Q: What is the PSRR?
A: PSRR is 65dB at 100Hz and 33dB at 1MHz.
Q: What package is available?
A: It is available in an 8-SOIC-EP package.