Richtek USA Inc. RT9166A-13GG

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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) 1.3V
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-13GG is a fixed-output low dropout linear regulator delivering a stable 1.3V supply at up to 600mA. Its low 0.58V dropout voltage and 300 μA quiescent current make it an efficient choice for battery-powered and portable applications. Housed in a compact SOT-223 package, it offers a reliable power solution for noise-sensitive circuits.

  • Efficient Power Conversion: The low 0.58V dropout voltage maximizes efficiency by allowing operation with a smaller input-to-output voltage difference.
  • Extended Battery Life: A low 300 μA quiescent current minimizes current draw from the battery in standby or light-load conditions.
  • Clean Output for Sensitive Loads: With 55dB PSRR at 1kHz, it effectively suppresses input noise, ensuring a stable supply for analog and RF circuits.
  • Robust Thermal Performance: The SOT-223 package provides a low thermal resistance path, enabling reliable operation at full 600mA load.

Low-Voltage Digital Core Power

Power 1.3V digital cores in FPGAs, ASICs, or microcontrollers from a higher system rail. The 600mA current capability and low dropout voltage ensure stable operation even when the input supply dips.

Battery-Powered Portable Devices

In battery-operated equipment, the 300 μA quiescent current helps extend battery life. The low dropout voltage allows efficient use of the battery's voltage range before it needs recharging.

Noise-Sensitive Analog Circuits

With a PSRR of 55dB at 1kHz, this regulator helps filter power supply noise, making it suitable for powering sensitive analog circuits like op-amps, ADCs, and PLLs.

Post-Regulation for Switching Converters

Use the RT9166A-13GG after a DC-DC converter to provide a clean, low-noise 1.3V rail. The low dropout voltage minimizes power dissipation in the linear stage.

Industrial Sensor Interfaces

Provide a stable 1.3V reference or supply for sensor signal conditioning circuits. The SOT-223 package offers good thermal performance for continuous operation in industrial environments.

Q: What is the output voltage of the RT9166A-13GG?
A: The RT9166A-13GG provides a fixed output voltage of 1.3V.
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
1.3V 600mA Fixed Output LDO Linear Regulator Low Dropout Richtek RT9166A SOT-223
Q: What is the output voltage of the RT9166A-13GG?
A: The RT9166A-13GG provides a fixed output voltage of 1.3V.
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.