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Product Detailed Parameters
- Description：IC REG BOOST 5V 930MA 6UDFN
- Series：TinyBoost®
- Mfr：onsemi
- Package：Tape & Reel (TR)
- Function：Step-Up
- Output Configuration：Positive
- Topology：Boost
- Output Type：Fixed
- Number of Outputs：1
- Voltage - Input (Min)：2.3V
- Voltage - Input (Max)：4.5V
- Voltage - Output (Min/Fixed)：5V
- Voltage - Output (Max)：-
- Current - Output：930mA (Switch)
- Frequency - Switching：3MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：6-UDFN Exposed Pad
- Supplier Device Package：6-UDFN (2x2)
- Grade：-
- Qualification：-
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Overview
The FAN4860UMP5X is a power factor controller with an integrated post regulator, manufactured by onsemi. It operates within an input voltage range of 2.3 V to 4.5 V and supports a maximum switching frequency of 3000 kHz. The device utilizes current-mode control and combines pulse width modulation with pulse frequency modulation techniques. Packaged in a compact HVSON format measuring 2 x 2 mm with six pins, it is designed for efficient power management applications requiring high integration.
Feature Summary
- Integrates power factor correction and post-regulation functions into a single component
- Supports combined PWM and PFM control strategies for optimized efficiency
- Features current-mode control architecture for stable operation
Applications
- Power factor correction circuits
- Post-regulator stages in power supplies
- Compact power management systems
Procurement Notes
Verify the manufacturer source carefully, as this part number appears in listings from Rochester Electronics rather than direct onsemi channels. Confirm the specific package variant matches the HVSON-6 specification. Ensure compatibility with the required input voltage range of 2.3 V to 4.5 V before procurement.
Selection Notes
Select this component when space constraints require a highly integrated solution combining PFC and regulation. The 2x2 mm footprint is suitable for dense layouts. Verify that the current-mode control strategy aligns with the system's stability requirements and that the 3 MHz switching frequency fits the electromagnetic interference constraints.
Part Context
This device belongs to the family of integrated power management ICs designed for high-density applications. It consolidates multiple power conversion stages to reduce component count and board area. The use of advanced modulation techniques allows for improved performance across varying load conditions compared to discrete solutions.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Direct replacement requires verifying pinout compatibility and electrical specifications against the original design requirements.
