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Product attributes Property Value
Manufacturer Torex Semiconductor Ltd
Product Series
Packaging Tape & Reel (TR) |
Output Configuration Active
Output Type Positive
Number of Regulators Fixed
Voltage - Input (Max) 6V
Voltage - Output (Min/Fixed) 2.5V
Voltage - Output (Max) -
Voltage Dropout (Max) 0.655V @ 1A
Current - Output 1A
Current - Quiescent (Iq) 18 μA
Current - Supply (Max) 108 μA
PSRR 50dB (1kHz)
Control Features Enable
Protection Features Over Current, Over Temperature
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case SOT-89-5/6
Supplier Device Package SOT-89-5
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Torex XC6220A251PR-G is a fixed-output LDO linear regulator delivering a precise 2.5V at up to 1A. Its low 18 μA quiescent current and 0.655V dropout voltage make it highly efficient for battery-operated devices. Housed in a compact SOT-89-5 package, it offers 50dB PSRR at 1kHz for clean power delivery in noise-sensitive applications.

  • Extended Battery Life: Ultra-low 18 μA quiescent current minimizes standby power draw, ideal for portable electronics.
  • High Current Capacity: Supports up to 1A output, suitable for power-hungry processors and sensors.
  • Low Dropout: 0.655V dropout at 1A allows operation from marginally higher input rails, improving efficiency.
  • Noise Rejection: 50dB PSRR at 1kHz filters supply ripple, ensuring stable voltage for analog circuits.

Battery-Powered IoT Sensors

With a low 18 μA quiescent current and 1A capability, the XC6220A251PR-G efficiently regulates 2.5V for wireless microcontrollers, extending battery life in remote sensor nodes.

Portable Medical Devices

The stable 2.5V output and low dropout of 0.655V ensure reliable operation for sensitive diagnostic equipment powered by single-cell lithium batteries, even as the battery discharges.

Industrial Control Modules

This LDO provides a clean, fixed 2.5V rail for logic circuits and analog sensors in industrial automation, with 50dB PSRR at 1kHz to reject supply noise.

Networking Equipment

For routers and switches requiring a stable core voltage, the 1A current rating supports high-speed transceivers while the SOT-89-5 package aids thermal dissipation.

Consumer Wearables

The compact SOT-89-5 footprint and low quiescent current make it ideal for smartwatches and fitness trackers, delivering consistent 2.5V power to processors and displays.

Automotive Infotainment

Although not AEC-Q100 qualified, the robust 1A output and low dropout support infotainment processors needing a regulated 2.5V supply from a 3.3V bus.

Q: What is the output voltage of the XC6220A251PR-G?
A: The fixed output voltage is 2.5V.
Q: What is the maximum output current?
A: It can deliver up to 1A of continuous output current.
Q: What is the input voltage range?
A: The input voltage is specified at 2.5V, with a typical operating range suitable for this fixed-output LDO.
Q: What is the dropout voltage?
A: The dropout voltage is 0.655V at a 1A load.
Q: What is the quiescent current?
A: The quiescent current is a low 18 μA, ideal for battery-powered applications.
Q: What package is available?
A: It comes in a compact SOT-89-5 package.
Base Product Number : XC6220A251
1A 2.5V Fixed Output LDO Linear Regulator Low Quiescent Current SOT-89-5 Torex
Q: What is the output voltage of the XC6220A251PR-G?
A: The fixed output voltage is 2.5V.
Q: What is the maximum output current?
A: It can deliver up to 1A of continuous output current.
Q: What is the input voltage range?
A: The input voltage is specified at 2.5V, with a typical operating range suitable for this fixed-output LDO.
Q: What is the dropout voltage?
A: The dropout voltage is 0.655V at a 1A load.
Q: What is the quiescent current?
A: The quiescent current is a low 18 μA, ideal for battery-powered applications.
Q: What package is available?
A: It comes in a compact SOT-89-5 package.