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Product Detailed Parameters
- Description：IC REG BUCK ADJ 20A 34PQFN
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：7V
- Voltage - Input (Max)：24V
- Voltage - Output (Min/Fixed)：0.6V
- Voltage - Output (Max)：5.5V
- Current - Output：20A
- Frequency - Switching：200kHz ~ 1MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：34-PowerTFQFN
- Supplier Device Package：34-PQFN (5.5x5)
- Grade：-
- Qualification：-
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Overview
The FAN23SV70AMPX is a synchronous buck regulator manufactured by onsemi, designed for high-current applications. It operates within an input voltage range of 7 V to 24 V and delivers up to 20 A output current. The device supports adjustable output voltages from 600 mV to 5.5 V with a switching frequency between 200 kHz and 1 MHz. Key electrical specifications include a quiescent current of 24 uA and an operating supply current of 1.8 mA. It functions reliably across a temperature range of -40°C to +125°C and utilizes a PQFN-34 package.
Feature Summary
- Synchronous buck topology for efficient power conversion
- Integrated shutdown control capability
- Wide input voltage compatibility
- High thermal performance design
Applications
- Point-of-load regulation in computing systems
- Industrial equipment power distribution
- Telecommunications infrastructure power supplies
- Consumer electronics requiring high current density
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS and REACH compliance status prior to integration. Check for obsolescence notices as the product lifecycle status indicates potential discontinuation. Ensure packaging specifications match assembly requirements. Validate datasheet revisions against current production batches.
Selection Notes
Evaluate thermal management needs given the 20 A output capability and PQFN-34 package constraints. Compare switching frequency options against external component size requirements. Assess input voltage stability within the 7 V to 24 V range for target application. Consider quiescent current impact on standby power efficiency. Verify output voltage adjustability meets load requirements.
Part Context
This component belongs to the FAN23SV series of synchronous buck regulators from onsemi. It represents a high-performance solution for demanding power delivery applications. The series emphasizes efficiency and compact form factor. Integration into modern electronic systems requires careful attention to layout and thermal design due to high current handling capabilities.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Consult official onsemi resources for updated cross-reference information.
