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Product Detailed Parameters
- Description：IC REG BUCK ADJ 6A 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)：19.2V
- Current - Output：6A
- Frequency - Switching：200kHz ~ 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 FAN21SV06MPX is a TinyBuck integrated synchronous buck regulator with a 6 A output current capability and a 24 V maximum input voltage. It utilizes a constant on-time control architecture for high efficiency across wide load ranges. The device features an adjustable output voltage from 0.8 V to 5.5 V, operates at a fixed switching frequency of 660 kHz, and includes synchronization capability. Packaged in a 25-lead MLP (QCC25) format, it integrates internal linear regulation and omits PFM mode operation.
Feature Summary
- Integrates synchronous MOSFETs with constant on-time control architecture
- Provides synchronization capability for multi-phase or clock-aligned applications
- Includes internal linear regulator for auxiliary power supply generation
- Operates without Power Factor Modulation (PFM) mode for consistent noise profiles
Applications
- Point-of-load conversion in industrial equipment
- Power distribution for embedded systems requiring 24 V input
- Synchronization-critical multi-rail power architectures
- Applications demanding low electromagnetic interference through fixed-frequency operation
Procurement Notes
Verify the specific suffix MPX against official datasheets to confirm package type and temperature range. Ensure compatibility with existing PCB footprints for the 25-lead MLP configuration. Cross-reference manufacturer documentation for any recent design revisions or pinout adjustments prior to final procurement validation.
Selection Notes
Select this component when a 6 A synchronous buck solution with 24 V input tolerance is required. The fixed 660 kHz frequency suits designs prioritizing predictable EMI over ultra-low light-load consumption. Verify that the application does not require PFM mode, as this device maintains continuous conduction characteristics.
Part Context
This part belongs to the TinyBuck family of integrated power stages. It represents a transition from discrete controller-MOSFET solutions to monolithic regulators. The device consolidates gate drive, protection logic, and power switches into a single compact footprint, reducing external component count compared to traditional PWM controllers.
Replacement Considerations
Public confirmed substitutes include the FAN23SV06P series for similar 6 A synchronous buck requirements with integrated LDO functionality. Verify electrical parameter alignment and thermal performance before substitution.
