XC9237C3ADMR-G

Voltage Regulators - DC DC Switching Regulators Overview

The XC9237C3ADMR-G is a synchronous step-down DC/DC converter manufactured by Torex Semiconductor. It features a built-in P-channel MOS driver transistor and N-channel MOS switching transistor, supporting an input voltage range of 2.0V to 6.0V. The device delivers a maximum output current of 600mA with a fixed output voltage of 3.0V (accuracy ±2.0%). It operates at a selectable switching frequency of either 1.2MHz or 3.0MHz. Control modes include PWM and automatic PWM/PFM switching. The IC includes soft-start, current control, and UVLO functions, consuming less than 1.0μA in standby.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates high-side P-channel and low-side N-channel MOS transistors for efficient synchronous rectification.
• Supports manual switching between PWM and automatic PWM/PFM modes for optimized efficiency across load ranges.
• Enables use of ceramic capacitors due to low internal resistance and stable operation.

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring compact power solutions
• Battery-powered equipment needing high efficiency
• Systems utilizing ceramic output capacitors

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against official Torex documentation to confirm the exact output voltage and switching frequency configuration. Ensure compatibility with required input voltage ranges and thermal management strategies for the SOT-25-5 package. Cross-reference datasheet revisions for any updates to electrical characteristics or pin assignments before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.0V output is required from a 2V to 6V input source. Choose based on the need for selectable switching frequencies to balance EMI and component size. Consider the automatic PWM/PFM mode for improved light-load efficiency compared to fixed PWM controllers.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the XC9237 series of 600mA synchronous step-down converters. The 'C' designation indicates a fixed output voltage variant, while 'DMR' specifies the SOT-25-5 package type. It is designed for applications demanding small external component counts and high efficiency.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for XC9237 series variants with matching output voltages and package types. Verify that alternative parts support the same input voltage range and switching frequency options. Ensure functional compatibility regarding control modes and protection features.

Voltage Regulators - DC DC Switching Regulators FAQ

What is the accuracy of the fixed output voltage?

The fixed output voltage has an accuracy of ±2.0%.

Can the switching frequency be adjusted?

Yes, the device allows selection between 1.2MHz and 3.0MHz switching frequencies.

What is the standby current consumption?

The standby current consumption is reduced to 1.0μA or less when all circuits are shut down.