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RT8129AGQW
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Product Detailed Parameters
- Description：IC REG CTRLR BUCK 10WDFN
- Series：-
- Mfr：Richtek USA Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Transistor Driver
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：4.5V ~ 13.2V
- Frequency - Switching：300kHz
- Duty Cycle (Max)：-
- Synchronous Rectifier：Yes
- Clock Sync：No
- Serial Interfaces：-
- Control Features：Current Limit, Enable, Phase Control, Power Good
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：10-WFDFN Exposed Pad
- Supplier Device Package：10-WDFN (3x3)
- Grade：-
- Qualification：-
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Overview
The RT8129AGQW is a synchronous buck DC-DC switching controller manufactured by Richtek USA Inc. It operates within a supply voltage range of 4.5V to 13.2V and features a fixed switching frequency of 300kHz. The device provides a single positive output configured for step-down topology. It is housed in a 10-WDFN (3x3) package with an exposed pad, suitable for surface mount installation. The component supports operation across a temperature range of -40°C to 85°C ambient.
Feature Summary
- Integrated synchronous rectification for improved efficiency
- Includes current limit, enable, phase control, and power good functions
- Designed as a transistor driver for external MOSFETs
Applications
- Point-of-load regulation in embedded systems
- Power supplies for industrial equipment
- Battery-powered devices requiring efficient step-down conversion
Procurement Notes
Verify the specific suffix 'GQW' matches the required 10-WDFN package and lead-free RoHS compliance status. Confirm that the 300kHz switching frequency aligns with your filter design requirements. Ensure the 4.5V minimum input voltage suits your system's lowest operating condition. Check for any recent product change notices regarding pinout or electrical characteristics before finalizing the bill of materials.
Selection Notes
Select this controller when a compact solution with integrated synchronous rectification is needed for low-to-medium power applications. The 300kHz frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the 10-WDFN package size constraints and thermal dissipation capabilities of the PCB layout. Verify that the external component selection supports the desired output voltage and current levels within the specified operating temperature range.
Part Context
This component belongs to the RT8129 family of synchronous buck controllers from Richtek. It serves as a direct replacement for the discontinued RT8106GQW, offering similar functionality in the same package. The RT8129 series is designed for applications requiring high efficiency and small footprint. It complements other PMIC solutions by providing a standalone switching controller option for custom power designs.
Replacement Considerations
The RT8129AGQW is listed as a direct replacement for the discontinued RT8106GQW. Both parts share the same 10-WDFN package and similar electrical specifications. Verify compatibility with existing board layouts and external component values when transitioning from the older model.
