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Product attributes Property Value
Manufacturer Torex Semiconductor Ltd
Product Series
Packaging Tape & Reel (TR) |
Output Configuration Positive
Output Type Fixed
Number of Regulators 1
Voltage - Input (Max) 6V
Voltage - Output (Min/Fixed) 3.3V
Voltage - Output (Max) -
Voltage Dropout (Max) 0.35V @ 200mA
Current - Output 200mA
Current - Quiescent (Iq) 21 µA
Current - Supply (Max) -
PSRR 50dB (1kHz)
Control Features Enable
Protection Features Over Current
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case SC-74A, SOT-753
Supplier Device Package SOT-25
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Torex XC6501D331MR-G is a fixed 3.3V low dropout linear regulator delivering up to 200mA. Its ultra-low 21 µA quiescent current and 0.35V dropout at full load make it ideal for battery-powered and portable applications. The SOT-25 package offers a compact solution for space-constrained designs.

  • Extended battery life: 21 µA quiescent current minimizes standby power draw.
  • High efficiency at low drop: 0.35V dropout at 200mA allows operation from near-3.6V sources.
  • Clean output: 50dB PSRR at 1kHz filters supply noise for sensitive loads.
  • Compact footprint: SOT-25 package saves PCB space in portable devices.

Battery-Powered IoT Sensors

The 21 µA quiescent current and 200mA output make it ideal for always-on sensor nodes, extending battery life significantly.

Portable Medical Devices

Stable 3.3V rail with 50dB PSRR at 1kHz ensures clean power for sensitive analog front-ends in glucose monitors or pulse oximeters.

Wearable Electronics

The compact SOT-25 package fits tight PCB layouts in smartwatches and fitness bands while providing reliable 3.3V regulation.

Industrial Control Modules

Low dropout of 0.35V allows operation from 3.6V lithium cells or 3.3V rails with minimal headroom, ensuring stable MCU operation.

RF Transceivers

PSRR of 50dB at 1kHz reduces power supply noise coupling into RF circuits, improving signal integrity in 2.4GHz modules.

Automotive Interior Lighting

With 200mA capability, it can drive LED indicators and small logic circuits from a regulated 3.3V bus in dashboards.

Q: What is the output voltage of the XC6501D331MR-G?
A: The fixed output voltage is 3.3V.
Q: What is the maximum output current?
A: It can deliver up to 200mA.
Q: What is the input voltage range?
A: The input voltage is 3.3V (typical operating point).
Q: What is the dropout voltage?
A: Dropout is 0.35V at 200mA load.
Q: What is the quiescent current?
A: The quiescent current is only 21 µA.
Q: What package is available?
A: It comes in a SOT-25 package.
Base Product Number : XC6501D331MR
200mA 3.3V LDO Linear Regulator Low Quiescent Current SOT-25 Torex XC6501
Q: What is the output voltage of the XC6501D331MR-G?
A: The fixed output voltage is 3.3V.
Q: What is the maximum output current?
A: It can deliver up to 200mA.
Q: What is the input voltage range?
A: The input voltage is 3.3V (typical operating point).
Q: What is the dropout voltage?
A: Dropout is 0.35V at 200mA load.
Q: What is the quiescent current?
A: The quiescent current is only 21 µA.
Q: What package is available?
A: It comes in a SOT-25 package.