XC9235A39DMR-G

Voltage Regulators - DC DC Switching Regulators Overview

The XC9235A39DMR-G is a synchronous step-down DC/DC converter manufactured by Torex Semiconductor Ltd. It provides a fixed output voltage of 3.9V with a maximum output current of 600mA. The device operates within an input voltage range of 2V to 6V and supports a switching frequency of 3MHz. It utilizes PWM control and features a SOT-25-5 (SC-74A) surface-mount package. The component functions across a temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates P-channel MOS driver and N-channel MOS switching transistors for high efficiency
• Supports ceramic capacitors due to built-in driver transistors
• Utilizes PWM control mode for stable power supply configuration

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring efficient step-down conversion
• Battery-powered systems operating between 2V and 6V
• Embedded circuits needing fixed 3.9V regulation

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'DMR' corresponds to the 3MHz switching frequency and SOT-25-5 package variant. Confirm RoHS compliance status and ensure the fixed 3.9V output matches the design requirement, as other suffixes may indicate adjustable or different voltage options within the XC9235 series.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.9V output is required from a 2V to 6V input source. The 3MHz frequency allows for smaller external inductors and capacitors compared to lower-frequency variants. Ensure the load current does not exceed 600mA and that the application environment stays within the specified operating temperature range.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the XC9235 series of synchronous rectification type DC/DC converters. The series is characterized by built-in driver transistors, allowing the use of small ceramic capacitors. The XC9235 series specifically employs PWM control, distinguishing it from the XC9236 and XC9237 series which offer automatic PWM/PFM switching modes.

Voltage Regulators - DC DC Switching Regulators FAQ

What control mode does the XC9235A39DMR-G utilize?

The XC9235A39DMR-G utilizes Pulse Width Modulation (PWM) control mode.

Can the output voltage be adjusted externally?

No, the XC9235A39DMR-G has a fixed output voltage of 3.9V. Adjustable versions in the series typically have reference voltages of 0.8V and require external resistors.