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Product Detailed Parameters
- Description：IC REG BUCK ADJ 3A 25MLP
- Series：TinyBuck®
- Mfr：onsemi
- Package：Tape & Reel (TR),Tape & Reel (TR)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：3V
- Voltage - Input (Max)：24V
- Voltage - Output (Min/Fixed)：0.8V
- Voltage - Output (Max)：21.6V
- Current - Output：3A
- Frequency - Switching：300kHz ~ 600kHz
- Synchronous Rectifier：Yes
- Operating Temperature：-10°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：25-WQFN Exposed Pad
- Supplier Device Package：25-MLP (6x5)
- Grade：-
- Qualification：-
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Overview
The FAN2103MPX is a synchronous step-down switching regulator manufactured by onsemi. It operates with an input voltage range of 3V to 24V and delivers up to 3A of output current. The device features adjustable output voltages from 0.8V to 21.6V in a single-output configuration. It utilizes pulse width modulation control with a switching frequency between 300kHz and 600kHz. The component is housed in a 25-pin WQFN exposed pad package and supports an operating temperature range of -10°C to 85°C.
Feature Summary
- Integrates synchronous power switches for high efficiency
- Supports adjustable output voltage via external resistors
- Utilizes fixed-frequency pulse width modulation control
Applications
- Point-of-load regulation for industrial equipment
- Power supply stages for embedded computing systems
- Battery-powered portable devices requiring efficient DC-DC conversion
Procurement Notes
Verify the specific ordering suffix against the manufacturer's official datasheet to ensure correct packaging and tape-and-reel specifications. Confirm that the requested variant matches the required thermal performance and pinout configuration for your PCB layout. Cross-reference the part number with the latest revision history to avoid obsolete or superseded components during procurement.
Selection Notes
Select this component when a compact, high-efficiency buck converter is needed for inputs up to 24V. Ensure the application requires an output current capability of at least 3A. Verify that the available board space accommodates the 25-pin WQFN package. Check that the system design can support the specified switching frequency range without excessive electromagnetic interference.
Part Context
This part belongs to onsemi's family of integrated synchronous buck regulators designed for space-constrained applications. It combines the controller and power MOSFETs into a single solution to reduce component count. The device is intended for general-purpose power management tasks where efficiency and size are critical constraints.
Replacement Considerations
Consult the official onsemi replacement guide for direct cross-references. Verify pin-to-pin compatibility and electrical parameter equivalence before substitution.
