Renesas Electronics Corporation
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Functional block diagram of the RRW43110 showing internal control blocks, gate driver, protection circuits, sensing elements, and signal flow between the SR controller, power switch, and external connections.
Diagram showing the RRW43110 used as a high-side synchronous rectification power switch for applications with VDS less than 145V. The circuit includes an auxiliary winding that provides the charging path, highlighting gate drive, current flow, and the SR control loop.
Diagram showing the RRW43110 configured as a low-side synchronous rectification power switch for VDS less than 145V. The circuit uses direct VIN LDO charging, illustrating the gate drive path, conduction direction, and SR control behavior.
Diagram showing the RRW43110 operating as a low-side synchronous rectification power switch for applications where VDS exceeds 145V. The design uses direct VIN LDO charging, with emphasis on the gate drive path, switching node behavior, and SR control timing.
Functional block diagram of the RRW43110 showing internal control blocks, gate driver, protection circuits, sensing elements, and signal flow between the SR controller, power switch, and external connections.
Diagram showing the RRW43110 used as a high-side synchronous rectification power switch for applications with VDS less than 145V. The circuit includes an auxiliary winding that provides the charging path, highlighting gate drive, current flow, and the SR control loop.
Diagram showing the RRW43110 configured as a low-side synchronous rectification power switch for VDS less than 145V. The circuit uses direct VIN LDO charging, illustrating the gate drive path, conduction direction, and SR control behavior.
Diagram showing the RRW43110 operating as a low-side synchronous rectification power switch for applications where VDS exceeds 145V. The design uses direct VIN LDO charging, with emphasis on the gate drive path, switching node behavior, and SR control timing.
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RRW43110-430

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Synchronous Rectifier Controller with 48V Wide‑Output Support and High‑Power‑Density Capability
RRW43110 DatasheetLearn more about RRW43110

Package Information

CAD Model:View CAD Model
Pkg. Type:SOT23-6L
Pkg. Code:
Lead Count (#):6
Pkg. Dimensions (mm):0.118 x 0.118 x 0.0512
Pitch (mm):

Environmental & Export Classifications

Moisture Sensitivity Level (MSL)1
Pb (Lead) Free
ECCN (US)
HTS (US)

Product Attributes

Pkg. TypeSOT23-6L
Lead Count (#)6
Carrier TypeTape & Reel
Temp. Range (°C)-40 to +125°C
ApplicationRapid-Charging AC/DC Adapters for Smart Phones, Tablets, Notebooks, Power Tools, Electric Bicycles, Industrial Power, Home Appliance, Motor Control
Compatible Primary-Side ICRRW11011, iW9860, iW9870, iW9801, iW9802
FunctionSynchronous Rectifier Controller for High‑Density, Wide-Output Designs
Moisture Sensitivity Level (MSL)1
Pkg. Dimensions (mm)0.118 x 0.118 x 0.0512
Price (USD)$0.3389
Qualification LevelStandard

Description

The RRW43110 is an advanced synchronous rectifier (SR) controller that works with both MOSFET and GaN devices. Using Renesas’ proprietary lossless VDS‑sensing technology, the RRW43110 supports multiple topologies, including half‑wave LLC (HWLLC) and other half‑bridge resonant converters, with switching frequencies up to 300kHz.

The device drives an external power switch to replace the secondary‑side rectifying diode, enabling high efficiency across a wide range of operating conditions. Its versatility makes the RRW43110 suitable for next‑generation high‑power‑density power supplies, supporting designs up to 3W/cm3 and power levels up to 500W.

The RRW43110 accommodates wide output‑voltage operation up to 48V or higher, making it suitable for a broad range of power‑supply applications requiring flexible secondary‑side rectification.

The device also supports low‑power and sleep modes to optimize efficiency at light‑load and no‑load conditions.

Learn more about RRW43110