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Product attributes Property Value
Manufacturer Analog Devices Inc./Maxim Integrated
Product Series
Packaging Bulk |
Output Configuration Positive
Output Type Fixed
Number of Regulators 1
Voltage - Input (Max) 6.5V
Voltage - Output (Min/Fixed) 5V
Voltage - Output (Max) -
Voltage Dropout (Max) 0.165V @ 150mA (Typ)
Current - Output 150mA
Current - Quiescent (Iq) 180 µA
Current - Supply (Max) 100 µA
PSRR 63dB (10kHz)
Control Features Enable
Protection Features Over Current, Over Temperature, Reverse Polarity, Short Circuit
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case SC-74A, SOT-753
Supplier Device Package SOT-23-5

The MAX8868EUK50 is a precision 5V low-dropout linear regulator from Analog Devices/Maxim Integrated, delivering up to 150mA in a compact SOT-23-5 package. With a typical dropout of just 165mV at full load and a low 180µA quiescent current, it is engineered for battery-powered and noise-sensitive applications. Its excellent 63dB PSRR at 10kHz ensures clean, stable power for analog and RF circuits.

  • Extended Battery Life: Low 180µA quiescent current minimizes standby drain in portable devices.
  • High Noise Rejection: 63dB PSRR at 10kHz filters switching noise for sensitive analog loads.
  • Compact Footprint: SOT-23-5 package saves PCB space for miniaturized designs.
  • Low Dropout: 165mV dropout at 150mA allows operation from near-threshold input rails.

Battery-Powered Portable Devices

The 5V fixed output and low 165mV dropout at 150mA make it ideal for powering logic and analog circuits from a 5.5V rail, maximizing battery life in handheld instruments.

Noise-Sensitive RF and Audio Circuits

With 63dB PSRR at 10kHz, this LDO effectively filters high-frequency switching noise, ensuring clean power for RF transceivers and audio codecs.

Industrial Sensor Interfaces

Stable 5V output with 150mA capability supports precision sensor bridges and ADCs, while the SOT-23-5 footprint fits space-constrained industrial modules.

Automotive Infotainment Backup Power

The low quiescent current (180µA) is suitable for always-on backup circuits in car infotainment, preserving battery when the main supply is off.

FPGA and DSP Core Supplies

Provides a clean 5V rail for I/O banks and auxiliary circuits in FPGAs, with fast transient response to digital load steps.

Portable Medical Monitors

Reliable 5V output with low dropout ensures consistent operation of glucose meters and pulse oximeters, even as battery voltage declines.

Q: What is the output voltage of the MAX8868EUK50?
A: The MAX8868EUK50 provides a fixed 5.0V output.
Q: What is the maximum output current?
A: It can deliver up to 150mA of continuous output current.
Q: What is the input voltage range?
A: The input voltage range is up to 5V (with headroom above the output).
Q: What is the dropout voltage?
A: The typical dropout voltage is 165mV at 150mA load.
Q: What is the quiescent current?
A: The quiescent current is typically 180µA.
Q: What package is available?
A: It comes in a compact SOT-23-5 package.
Base Product Number : MAX8868EUK50
150mA 5V High PSRR LDO Linear Regulator Low Dropout Low Quiescent Current MAX8868 SOT-23-5
Q: What is the output voltage of the MAX8868EUK50?
A: The MAX8868EUK50 provides a fixed 5.0V output.
Q: What is the maximum output current?
A: It can deliver up to 150mA of continuous output current.
Q: What is the input voltage range?
A: The input voltage range is up to 5V (with headroom above the output).
Q: What is the dropout voltage?
A: The typical dropout voltage is 165mV at 150mA load.
Q: What is the quiescent current?
A: The quiescent current is typically 180µA.
Q: What package is available?
A: It comes in a compact SOT-23-5 package.