Richtek USA Inc. RT9166A-25GGL

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Product attributes Property Value
Manufacturer Richtek USA Inc.
Product Series
Packaging |
Output Configuration Active
Output Type Positive
Number of Regulators Fixed
Voltage - Input (Max) 5.5V
Voltage - Output (Min/Fixed) 2.5V
Voltage - Output (Max) -
Voltage Dropout (Max) 0.58V @ 600mA (Typ)
Current - Output 600mA
Current - Quiescent (Iq) 300 μA
Current - Supply (Max) -
PSRR 55dB (1kHz)
Control Features -
Protection Features Over Current, Over Temperature
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case TO-261-4, TO-261AA
Supplier Device Package SOT-223
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Richtek RT9166A-25GGL is a fixed-output low dropout regulator that provides a stable 2.5V supply at up to 600mA. With a typical dropout voltage of 0.58V and a low quiescent current of 300 μA, it is well-suited for battery-powered and portable electronics. The SOT-223 package offers excellent thermal performance.

  • Stable 2.5V Output: Ensures reliable operation for mixed-signal circuits and digital logic requiring a precise 2.5V rail.
  • Low Dropout Voltage: The 0.58V dropout allows efficient operation from a 3.3V or 3.0V input supply.
  • Low Quiescent Current: The 300 μA quiescent current helps prolong battery life in portable applications.
  • Excellent Noise Rejection: 55dB PSRR at 1kHz provides a clean output for noise-sensitive analog circuits.

Analog-to-Digital Converter (ADC) Supplies

Provide a clean 2.5V reference or supply for ADCs, ensuring accurate conversion results by minimizing power supply noise.

FPGA Auxiliary and I/O Rails

Many FPGAs require a 2.5V auxiliary or I/O supply. This LDO delivers stable power with low dropout for reliable operation.

Battery-Powered Consumer Electronics

Ideal for digital cameras, MP3 players, and handheld games that need a regulated 2.5V supply from a battery source.

Sensor Signal Conditioning

Power bridge sensors and instrumentation amplifiers with a stable 2.5V rail, improving measurement accuracy in industrial applications.

Communication Interface Power

Use the RT9166A-25GGL to power RS-232 transceivers or CAN bus controllers that operate at 2.5V logic levels.

Q: What is the output voltage of the RT9166A-25GGL?
A: The RT9166A-25GGL provides a fixed output voltage of 2.5V.
Q: What is the maximum output current?
A: This LDO can deliver up to 600mA 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 for this parameter.
Q: What is the dropout voltage?
A: The typical dropout voltage is 0.58V at a 600mA load.
Q: What is the quiescent current?
A: The quiescent current is 300 μA.
Q: What package is available?
A: This model comes in the SOT-223 package.
Base Product Number : RT9166A
2.5V 600mA Fixed Output LDO Linear Regulator Low Dropout Richtek RT9166A SOT-223
Q: What is the output voltage of the RT9166A-25GGL?
A: The RT9166A-25GGL provides a fixed output voltage of 2.5V.
Q: What is the maximum output current?
A: This LDO can deliver up to 600mA 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 for this parameter.
Q: What is the dropout voltage?
A: The typical dropout voltage is 0.58V at a 600mA load.
Q: What is the quiescent current?
A: The quiescent current is 300 μA.
Q: What package is available?
A: This model comes in the SOT-223 package.