XC9236B1FD4R-G

Voltage Regulators - DC DC Switching Regulators Overview

The XC9236B1FD4R-G is a synchronous step-down DC/DC converter from Torex Semiconductor. It features a built-in P-channel MOS driver transistor and N-channel switching transistor, enabling the use of ceramic output capacitors. The device operates within an input voltage range of 2.0V to 6.0V and provides a fixed output voltage of 1.0V with an accuracy of ±2.0%. It supports a maximum output current of 600mA and offers selectable switching frequencies of 1.2MHz or 3.0MHz. The IC utilizes automatic PWM/PFM switching control for high efficiency across load ranges.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Built-in synchronous rectification using P-channel and N-channel MOS transistors
• Automatic switching between PWM and PFM modes for optimized efficiency
• High-speed soft-start function typical at 0.25ms for rapid turn-on
• Low standby current consumption with internal shutdown circuitry

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring efficient power management
• Battery-powered systems utilizing ceramic capacitor configurations
• Applications demanding fast transient response and low ripple
• General purpose step-down conversion in compact surface-mount designs

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'D' indicates the 2.0V minimum input voltage variant compatible with standard lithium-ion cells. Confirm the 'F' designation aligns with the required 1.0V fixed output specification. Ensure the package type matches the target PCB footprint requirements for reliable surface mounting.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 1.0V output is required without external feedback resistors. Consider the 600mA current limit for moderate load applications. Evaluate the 1.2MHz or 3.0MHz frequency options against EMI constraints and inductor size limitations. Verify thermal performance under maximum load conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the XC9236 series, which are 600mA synchronous step-down converters. The series distinguishes itself by integrating driver transistors to eliminate the need for external Schottky diodes. The B-type designation typically denotes specific output voltage configurations within the broader product family.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

XC9236B1FCER-G: Alternative package option with identical electrical characteristics.