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RT8131BGQW
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Product Detailed Parameters
- Description：IC REG CTRLR BUCK PWM 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)：5.5V ~ 26.5V
- Frequency - Switching：300kHz
- Duty Cycle (Max)：88%
- Synchronous Rectifier：Yes
- Clock Sync：No
- Serial Interfaces：-
- Control Features：Dead Time Control, Enable, Frequency Control, Phase Control, Ramp
- 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 RT8131BGQW is a synchronous buck DC-DC switching controller manufactured by Richtek USA Inc. It operates with a fixed switching frequency of 300 kHz and supports an input voltage range of 4.5 V to 13.2 V. The device features a single positive output configuration with adjustable voltage capability, delivering up to 1 A of output current. Designed for surface-mount installation, it utilizes a 10-WFDFN package with exposed pad for enhanced thermal performance. The controller includes integrated soft-start functionality and protection features such as over-current and under-voltage lockout, ensuring stable operation within a temperature range of -40°C to +85°C.
Feature Summary
- Integrates high-side and low-side drivers for synchronous rectification in a compact footprint
- Provides precise voltage regulation through external resistor feedback network
- Includes built-in soft-start to limit inrush current during power-up sequences
Applications
- Portable electronics requiring efficient step-down conversion
- Embedded systems with single-rail power distribution needs
- Industrial control modules operating within standard voltage ranges
Procurement Notes
Verify the specific suffix 'GQW' corresponds to the required tape-and-reel packaging format and moisture sensitivity level before ordering. Confirm that the 10-WFDFN pinout matches the target PCB layout design. Ensure compliance with RoHS directives if environmental regulations apply to the final assembly process.
Selection Notes
Select this component when a single-output synchronous buck topology is required with moderate current demands. Consider the 300 kHz switching frequency for balancing efficiency and passive component size. Evaluate thermal dissipation requirements based on the WDFN package limitations and expected load conditions.
Part Context
This part belongs to Richtek's series of DC-DC switching controllers designed for power management applications. It complements other models like the RT8130BGQW by offering similar synchronous buck capabilities but tailored for specific output current and voltage adjustment requirements within the same product family.
Replacement Considerations
RT8130BGQW serves as a potential alternative within the same manufacturer lineup, though verification of pin compatibility and electrical specifications is necessary.
