MAX8902A, MAX8902B

Low-Noise 500mA LDO Regulators in a 2mm x 2mm TDFN Package

Low-Noise, Low-Dropout, High-PSRR, 500mA Linear Regulators in a 2mm x 2mm TDFN Package

Please check latest availability status for a specific part variant.


The MAX8902A/MAX8902B low-noise linear regulators deliver up to 500mA of output current with only 16µVRMS of output noise in a 100kHz bandwidth. These regulators maintain their output voltage over a wide input range, requiring only 100mV of input-to-output headroom at full load.

These LDOs maintain a low 80µA typical supply current, independent of the load current and dropout voltage. The regulator control circuitry includes a programmable soft-start circuit and short circuit, reverse current, and thermal-overload protection. Other features include an enable input and a power-OK output (MAX8902B only).

The MAX8902A output voltage can be set to 1.5V, 1.8V, 2.0V, 2.5V, 3.0V, 3.1V, 3.3V, 4.6V, or 4.7V using the SELA and SELB inputs. The MAX8902B output voltage can be set between 0.6V and 5.3V with an external resistor voltage-divider.

MAX8902A, MAX8902B: Typical Operating Circuits MAX8902A, MAX8902B: Typical Operating Circuits Enlarge+

Key Features

  • 1.7V to 5.5V Input Voltage Range
  • 0.6V to 5.3V Output Voltage Range
  • 16µVRMS Output Noise, 10Hz to 100kHz
  • 80µA Operating Supply Current
  • 92dB PSRR at 5kHz
  • Guaranteed 500mA Output Current
  • ±1.5% Output Accuracy Over Load, Line, and Temperature
  • 100mV (max) Dropout at 500mA Load
  • < 1µA Shutdown Supply Current
  • 700mA Short-Circuit Protection
  • Thermal-Overload Protection
  • Output-to-Input Reverse Current Protection
  • 2mm x 2mm x 0.8mm TDFN Package


  • MP3 and Portable Media Players
  • Notebook Computers
  • Smartphones

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX8902EVKIT: Evaluation Kit for the MAX8902A and MAX8902B
Product Reliability Reports: MAX8902A.pdf  MAX8902B.pdf 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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