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Product Detailed Parameters
- Description：IC REG BUCK 3V 1A 6WLCSP
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Fixed
- Number of Outputs：1
- Voltage - Input (Min)：2.3V
- Voltage - Input (Max)：5.5V
- Voltage - Output (Min/Fixed)：3V
- Voltage - Output (Max)：-
- Current - Output：1A
- Frequency - Switching：6MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：6-XFBGA, WLCSP
- Supplier Device Package：6-WLCSP
- Grade：-
- Qualification：-
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Overview
The BU90006GWZ-E2 is a synchronous buck switching regulator manufactured by ROHM Semiconductor, designed for efficient power management in compact electronic systems. It integrates high-side P-channel and low-side N-channel MOSFETs to deliver a fixed 3 V output at up to 1 A load current. The device operates within an input voltage range of 2.3 V to 5.5 V and supports switching frequencies between 5.4 MHz and 6.6 MHz. Key electrical specifications include a maximum static current of 55 uA and operation across a temperature range of -40°C to +85°C. It utilizes the UCSP35L1-6 package.
Feature Summary
- Integrates high-side Pch and low-side Nch MOSFETs with specified on-resistances for synchronous step-down conversion
- Supports automatic transition between PFM and PWM modes for optimized light-load efficiency
- Includes forced PWM operation capability for reduced output voltage ripple under specific conditions
- Features internal soft start, under-voltage lockout, over-current protection, and thermal shutdown mechanisms
Applications
- Evaluation of synchronous buck DC/DC converter performance using dedicated development boards
- Power supply design for portable devices requiring high-efficiency step-down regulation
- Embedded systems utilizing integrated FET controllers for space-constrained layouts
Procurement Notes
Verify component authenticity through authorized channels as the part status is listed as Obsolete. Confirm package integrity and pin alignment against the UCSP35L1-6 specification before integration. Ensure compatibility with existing PCB footprints and thermal management requirements. Review latest datasheets for any revisions affecting electrical characteristics or handling instructions.
Selection Notes
Select this component when a fixed 3 V output is required from a 2.3 V to 5.5 V input source. Consider the UCSP35L1-6 package dimensions for layout constraints. Evaluate the 5.4 MHz to 6.6 MHz switching frequency range against EMI requirements. Verify that the 1 A output current capacity meets system load demands while accounting for thermal dissipation limits.
Part Context
This device belongs to the BU90006GWZ series of switching regulators. It is categorized under PMIC - Power Management ICs and specifically Step-Down Switching Regulators. The product is manufactured by ROHM Semiconductor and is available in SMD/SMT installation styles. Related evaluation tools include the BU90006GWZ-E2-EVK-101 board for testing purposes.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer resources for potential obsolescence management strategies or alternative series within the same product family.
