XC9236A3FDER-G

Voltage Regulators - DC DC Switching Regulators Overview

The XC9236A3FDER-G is a synchronous step-down DC/DC converter from the XC9236 series by Torex Semiconductor. It features a built-in driver transistor and operates within an input voltage range of 1.8V to 6.0V. The device provides a fixed output voltage of 3.55V with a maximum output current of 600mA. It utilizes a 3MHz switching frequency and employs automatic PWM/PFM control for optimized efficiency across load conditions. The component is housed in a compact 6-UFDFN package with an exposed pad, suitable for surface mount applications.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous rectification topology with built-in P-channel MOS driver and N-channel MOS switching transistors
• Automatic switching between PWM and PFM modes to maintain high efficiency under varying load conditions
• Capable of driving ceramic output capacitors due to low internal resistance components

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring efficient power management
• Battery-powered equipment utilizing lithium-ion or lithium-polymer cells
• Embedded systems with strict space constraints

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'G' indicates lead-free compliance as per RoHS standards. Confirm the 'A' designation corresponds to the fixed 3.55V output variant. Ensure the DER-G package marking matches the 6-UFDFN physical dimensions. Cross-reference the datasheet revision date to ensure compatibility with current design specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this model when a fixed 3.55V output is required from a 1.8V to 6.0V input source. The 600mA current rating suits moderate load applications. The 3MHz frequency allows for smaller external passive components compared to lower-frequency alternatives. Automatic mode switching makes it suitable for battery-operated devices where light-load efficiency is critical.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the XC9235/XC9236/XC9237 series of 600mA synchronous step-down converters. The XC9236 variant specifically distinguishes itself through automatic PWM/PFM switching control, whereas the XC9235 uses fixed PWM and the XC9237 allows manual mode selection. All series share similar internal architectures and package options.

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 this device operate with ceramic output capacitors?

Yes, the built-in driver and switching transistors are designed to allow the use of ceramic capacitors.