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Product Detailed Parameters
- Description：STEP-UP & STEP-DOWN 300KHZ DCDC
- Series：XC9302
- Mfr：Torex Semiconductor Ltd
- Package：Tape & Reel (TR)
- Output Type：PWM
- Function：Step-Up/Step-Down
- Output Configuration：Positive
- Topology：Buck-Boost
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：2V ~ 10V
- Frequency - Switching：300kHz
- Duty Cycle (Max)：92%
- Synchronous Rectifier：No
- Clock Sync：No
- Serial Interfaces：-
- Control Features：Enable
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：SC-74A, SOT-753
- Supplier Device Package：SOT-25-5
- Grade：-
- Qualification：-
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Overview
The XC9302A553MR-G is a positive output Buck-Boost DC/DC controller IC from Torex Semiconductor Ltd. It supports input voltages ranging from 2V to 10V and operates with a fixed switching frequency of 300kHz. The device features a maximum duty cycle of 92% and does not include synchronous rectification. It provides a single output phase and includes an enable control feature for power management.
Feature Summary
- Buck-Boost topology for step-up and step-down voltage conversion
- Fixed 300kHz switching frequency operation
- Integrated enable control function
Applications
- Portable electronic devices requiring flexible voltage regulation
- Battery-powered systems with varying supply levels
- General-purpose DC-DC conversion circuits
Procurement Notes
Verify the specific suffix 'MR-G' against official Torex documentation to confirm package type and tape/reel specifications. Ensure compatibility with required operating temperature ranges and check for any recent product lifecycle status updates directly from the manufacturer before finalizing procurement plans.
Selection Notes
Select this component when a non-synchronous Buck-Boost controller is required for low-to-medium power applications. The 300kHz frequency offers a balance between efficiency and component size. Consider external MOSFET selection carefully as the device lacks integrated synchronous rectifiers, impacting overall system efficiency design.
Part Context
This part belongs to the XC9302 series of DC/DC controllers by Torex Semiconductor. It is designed for versatile voltage regulation in compact form factors. The MR-G designation typically indicates a specific surface-mount package configuration suitable for automated assembly processes in consumer electronics manufacturing.
Replacement Considerations
No public confirmed substitute part numbers are available in the provided source material. Consult Torex Semiconductor's official cross-reference guides or distributor databases for potential alternatives if this specific variant is unavailable.
