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RT8820AGQW
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Product Detailed Parameters
- Description：IC PWM CTRLR BUCK WQFN-20
- 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：2
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：2.5V ~ 5.5V
- Frequency - Switching：1.5MHz
- Duty Cycle (Max)：100%
- Synchronous Rectifier：Yes
- Clock Sync：No
- Serial Interfaces：-
- Control Features：Current Limit, Enable, Soft Start
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：12-WFDFN Exposed Pad
- Supplier Device Package：12-WDFN (3x3)
- Grade：-
- Qualification：-
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Overview
The RT8820AGQW is a dual-phase synchronous Buck PWM controller manufactured by Richtek, optimized for high-performance graphics applications. It operates with a switching frequency of 300 kHz and supports an output voltage range from 1.33 V to 2 V. The device features four outputs and functions as a step-down converter with positive output configuration. It is designed for surface-mount installation in WQFN-20 packages, operating within a temperature range of -10°C to +105°C.
Feature Summary
- Dual-phase PWM control architecture with VID reference support
- Optimized for high-performance graphic processing power delivery
- Synchronous buck topology for efficient step-down conversion
Applications
- High-performance graphics power management
- Mobile device power systems
- Embedded graphics subsystems
Procurement Notes
Verify the specific suffix AGQW against official Richtek documentation to confirm package type and marking code KP. Ensure compatibility with required thermal dissipation standards for WQFN-20 mounting. Confirm humidity sensitivity handling procedures are followed during assembly to prevent damage during reflow soldering processes.
Selection Notes
Select this component when designing power stages for graphics-intensive mobile or embedded systems requiring dual-phase synchronization. Consider the 300 kHz switching frequency for balancing efficiency and component size. Verify that the 1.33 V to 2 V output range aligns with the target load requirements and that the WQFN-20 package fits the PCB layout constraints.
Part Context
This part belongs to the RT8820A family of synchronous Buck PWM controllers. It shares functional similarities with other Richtek switching controllers but is specifically tuned for graphics applications. The AGQW designation indicates the specific package and tape-and-reel configuration for automated assembly.
Replacement Considerations
No public confirmed substitute part numbers are available in the provided documentation. Engineers should consult Richtek directly for qualified alternatives if supply chain constraints arise.
