XC9237C18DER-G

Voltage Regulators - DC DC Switching Regulators Overview

The XC9237C18DER-G is a synchronous step-down DC/DC converter from the XC9237 series by Torex Semiconductor. It features a built-in P-channel driver transistor and N-channel switching transistor, enabling the use of ceramic capacitors. The device operates within an input voltage range of 2.0V to 6.0V and provides a fixed output voltage of 1.8V with a maximum output current of 600mA. It supports manual switching between PWM and automatic PWM/PFM modes for optimized efficiency across load ranges. The unit is housed in a compact USP-6C package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous rectification topology with integrated high-side and low-side transistors
• Manual selectable operation mode between PWM and automatic PWM/PFM switching
• Optimized soft start and current control functions for stable performance
• Designed for minimal external component count using ceramic capacitors

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring efficient power management
• Battery-powered systems needing extended operational time
• Embedded circuits demanding stable voltage regulation under varying loads
• Consumer electronics utilizing ceramic capacitor configurations

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix DER-G against official Torex documentation to confirm package type and tape/reel specifications. Ensure the fixed output voltage matches the design requirement, as this variant provides a set value rather than an adjustable one. Cross-reference the manufacturing date code and RoHS compliance status with the latest datasheet revision to guarantee material integrity and supply chain authenticity.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Choose this model when a fixed 1.8V output is required without external resistor networks. Select based on the need for manual mode control to balance ripple and efficiency. Consider the 600mA current limit and 6V maximum input voltage constraints. Evaluate the USP-6C package size against board space limitations compared to other series variants.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the XC9235/XC9236/XC9237 series of 600mA synchronous step-down converters. The XC9237 series specifically allows manual selection between PWM and PWM/PFM modes, distinguishing it from the automatic-only XC9236. It shares the same internal transistor architecture and ceramic capacitor compatibility as its siblings while offering distinct control flexibility.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

XC9237C18DER-G

Voltage Regulators - DC DC Switching Regulators FAQ

Can the output voltage be adjusted externally?

No, the XC9237C18DER-G has a fixed output voltage of 1.8V. Adjustable versions in the series require different suffixes.

What is the difference between PWM and PWM/PFM modes?

PWM mode offers constant frequency operation suitable for noise-sensitive applications, while PWM/PFM mode improves light-load efficiency by skipping cycles automatically.