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Product Detailed Parameters
- Description：IC REG BOOST 3.3V 500MA 10VSON
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Function：Step-Up
- Output Configuration：Positive
- Topology：Boost
- Output Type：Fixed
- Number of Outputs：1
- Voltage - Input (Min)：0.6V
- Voltage - Input (Max)：4.5V
- Voltage - Output (Min/Fixed)：3.3V
- Voltage - Output (Max)：-
- Current - Output：500mA
- Frequency - Switching：800kHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 85°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：10-UFDFN Exposed Pad
- Supplier Device Package：VSON010X3020
- Grade：-
- Qualification：-
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Overview
The BU33UV7NUX-E2 is a synchronous boost DC/DC converter manufactured by ROHM Semiconductor. It operates with an input voltage range of 0.6 V to 4.5 V and provides a fixed output of 3.3 V. The device supports a maximum output current of 500 mA at Vout=3.3V and Vin=1.8V. It features an integrated switching frequency setting up to 0.8 MHz and includes light load mode for efficiency optimization. The component is housed in a compact VSON010X3020 package measuring 3.0x2.0 mm with a thickness of 0.6 mm. It functions within a temperature range of -40°C to +85°C.
Feature Summary
- Integrates controller and FET in a single synchronous boost topology
- Supports auto-PFM/PWM and fixed PFM modes for light load efficiency
- Includes disconnect function during EN-OFF and UVLO states
- Features thermal shutdown protection and pass-through capability
Applications
- Remote controls
- Wearable electronic devices
- Small battery-powered electronics requiring low power consumption
Procurement Notes
Verify the current lifecycle status as the component may be classified as NRND or obsolete. Confirm RoHS compliance details through official datasheets. Check for alternative packages if the VSON010X3020 form factor is unavailable. Ensure design-in compatibility with existing board layouts before procurement.
Selection Notes
Select this component for applications requiring a small footprint and high efficiency at low input voltages. The integrated FET reduces external component count. Consider the 0.6 V minimum input voltage for single-cell battery operation. Verify that the 500 mA output current meets the system load requirements under all operating conditions.
Part Context
This part belongs to the BU33UV7NUX series of synchronous boost converters from ROHM. It is designed for portable devices where size and power efficiency are critical. The series typically offers integrated solutions to minimize PCB area. Other variants in the family may differ in output voltage, current rating, or package type.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Consult ROHM technical support for direct replacements or pin-compatible alternatives.
