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FAN5358S713X is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists Fairchild Semiconductor. Its product description is IC REG BUCK 1.3V 500MA SC88. Review the specifications below when checking this part for your BOM.
The FAN5358S713X is a high-frequency, ultra-fast transient response synchronous step-down DC-DC converter optimized for low-power applications. It supports up to 1A load current and operates with an input voltage range of 2.7V to 5.5V. The device features digitally programmable output voltage from 0.75V to 1.975V via I2C-compatible interface. It utilizes a 3MHz fixed-frequency operation to enable the use of small inductors and capacitors. Key electrical parameters include ±2% PWM DC voltage accuracy and a minimum on-time of 35ns. The component integrates smooth transition between PWM and PFM modes for high efficiency.
Verify the specific suffix 'S713X' against official Fairchild or onsemi documentation to confirm package type and tape/reel specifications. Ensure compatibility with I2C bus speeds up to 3.4Mbps. Confirm RoHS compliance status through the manufacturer's latest datasheet revision. Cross-reference pinout configurations if replacing legacy components.
Select this component for applications requiring precise digital voltage regulation and fast load transient response. The 3MHz switching frequency allows for compact designs using small inductors. Consider the 1A output current capability and 2.7V to 5.5V input range when designing power stages. Ensure the system supports I2C communication for voltage programming.
The FAN5358 belongs to the TinyBuck regulator family from Fairchild Semiconductor, now part of onsemi. This series is designed for portable electronics requiring high efficiency and small footprint. The S713X suffix typically denotes a specific package variant, such as MLP or CSP, intended for surface-mount assembly in space-constrained mobile devices.
The FAN5355 is a related model within the same family offering similar functionality with potentially different current ratings or package options. Verify pin-to-pin compatibility and electrical parameter alignment before substitution.
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