XC9236A33D4R-G

Voltage Regulators - DC DC Switching Regulators Overview

The XC9236A33D4R-G is a synchronous step-down DC/DC converter manufactured by Torex Semiconductor Ltd. It features a built-in P-channel MOS driver transistor and N-channel MOS switching transistor, enabling the use of ceramic output capacitors. The device supports an input voltage range from 1.8V to 6.0V and provides a fixed output voltage of 3.3V with a maximum output current of 600mA. It operates at selectable switching frequencies of 1.2MHz or 3.0MHz. The component utilizes automatic PWM/PFM switching control to maintain high efficiency across varying load conditions.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates internal P-channel and N-channel MOS transistors for synchronous rectification
• Supports external resistor setting for adjustable output voltage via 0.8V reference
• Features automatic switching between PWM and PFM modes for optimized light-load efficiency
• Includes built-in UVLO and soft-start functions for stable operation

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring efficient power management
• Battery-powered equipment utilizing low-voltage inputs
• Industrial control systems needing stable regulated power supplies
• Consumer electronics with space-constrained PCB layouts

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix D4R-G against official Torex documentation to confirm package type and tape/reel specifications. Ensure compatibility with required input voltage ranges and thermal dissipation requirements for the target application environment. Cross-reference RoHS compliance status with current manufacturer declarations prior to final procurement decisions.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed or adjustable 3.3V output is required from a 1.8V to 6.0V input source. Consider the automatic PWM/PFM mode for applications demanding high efficiency at light loads. Evaluate the 1.2MHz or 3.0MHz frequency options based on inductor size constraints and noise sensitivity requirements within the system design.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the XC9236 series of synchronous-rectification type DC/DC converters. The series is designed for high efficiency and stability using only external coils and capacitors. It distinguishes itself from the XC9235 (PWM only) and XC9237 (manual switch) series by offering automatic mode switching, making it suitable for variable load applications.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Consult official Torex documentation for verified substitute part numbers within the XC9235, XC9236, or XC9237 families. Ensure any replacement matches the input voltage range, output current capability, and package dimensions. Verify that the alternative component supports the required switching frequency and control mode for the specific application.