XC9301A432MR-G

DC DC Switching Controllers Overview

The XC9301A432MR-G is a step-up and step-down DC-DC switching controller IC manufactured by Torex Semiconductor Ltd. It operates with a fixed switching frequency of 180kHz and supports an input supply voltage range of 2V to 10V. The device features a maximum duty cycle of 92% and utilizes PWM output type for control. Designed for positive output configurations, it employs a buck-boost topology within a SOT-25-5 (SC-74A) surface-mount package. The component functions across an operating temperature range of -40°C to 85°C and includes enable functionality.

DC DC Switching Controllers Feature Summary

• Supports both step-up and step-down voltage conversion via buck-boost topology
• Operates at a fixed 180kHz switching frequency
• Accepts wide input supply voltage from 2V to 10V
• Provides high maximum duty cycle capability up to 92%

DC DC Switching Controllers Applications

• Battery-powered portable electronic devices requiring variable voltage regulation
• Systems utilizing single-cell lithium-ion or lithium-polymer batteries
• Industrial equipment power management circuits
• Consumer electronics with fluctuating input voltage sources

DC DC Switching Controllers Procurement Notes

Verify the specific suffix 'MR-G' against the official Torex Semiconductor datasheet to confirm package type and tape/reel specifications. Ensure the intended application voltage range falls within the documented 2V to 10V limits. Cross-reference the thermal performance requirements with the -40°C to 85°C operating range. Confirm that the external inductor and capacitor selections are compatible with the 180kHz switching frequency for stable operation.

DC DC Switching Controllers Selection Notes

Select this controller when a buck-boost topology is required for input voltages ranging from 2V to 10V. It is suitable for applications needing a fixed 180kHz switching frequency to simplify filter design. Choose this part if space constraints allow for a SOT-25-5 package and if the system requires an enable pin for power management. Consider external component selection carefully to achieve the specified 92% maximum duty cycle.

DC DC Switching Controllers Part Context

The XC9301A432MR-G belongs to the XC9301 series of PWM switching controllers from Torex Semiconductor. This series is designed for efficient power management in portable devices. The A432 variant specifically denotes the 180kHz frequency option within the family. It complements other variants like the XC9301A203MR-G which operates at 300kHz, offering flexibility in switching frequency selection based on noise and efficiency requirements.

DC DC Switching Controllers Replacement Considerations

XC9301A203MR-G: Offers identical functionality but operates at a 300kHz switching frequency instead of 180kHz. XC9301A352MR-G: Provides similar buck-boost control with a different frequency specification. Verify pin compatibility and external component values when substituting these variants.