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RT8120HGSP
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Product Detailed Parameters
- Description：IC REG CTRLR BUCK PWM PSOP-8
- 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)：3V ~ 13.2V
- Frequency - Switching：300kHz
- Duty Cycle (Max)：85%
- Synchronous Rectifier：Yes
- Clock Sync：No
- Serial Interfaces：-
- Control Features：Enable, Frequency Control, Phase Control, Ramp, Soft Start
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Supplier Device Package：8-SOP-EP
- Grade：-
- Qualification：-
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Overview
The RT8120HGSP is a single-phase synchronous buck PWM DC/DC controller manufactured by Richtek USA Inc. It is designed to drive two N-MOSFETs for efficient power conversion. The device operates with an input voltage range of 3V to 13.2V and supports a switching frequency of 300kHz. It features a maximum duty cycle of 85% and includes control functions such as enable, frequency control, phase control, ramp compensation, and soft start. The component is housed in an 8-SOP-EP package and operates within a temperature range of -40°C to 125°C.
Feature Summary
- Single-phase synchronous buck topology for driving dual N-MOSFETs
- Integrated control features including soft start and ramp compensation
- Supports frequency control and phase control capabilities
Applications
- Point-of-load regulation in computing systems
- Power management for communication equipment
- Industrial control system power supplies
Procurement Notes
Verify the specific suffix HGSP against the manufacturer's official datasheet to confirm pinout and thermal pad configuration. Ensure compatibility with the intended PCB footprint, specifically the 8-SOP-EP package dimensions. Confirm that the application circuit design accounts for the specified operating temperature range and switching frequency requirements before finalizing procurement.
Selection Notes
Select this component when a synchronous buck controller is required for applications needing precise output regulation and multiple control features. It is suitable for designs utilizing external N-MOSFETs where flexibility in switching frequency and phase alignment is necessary. Consider the 8-SOP-EP package for thermal performance and space constraints in dense layouts.
Part Context
The RT8120 series belongs to Richtek's portfolio of DC/DC switching controllers. The HGSP variant specifically denotes the package type and temperature grade. This controller is part of a family designed for high-efficiency power conversion, offering designers flexibility through external MOSFET selection and programmable parameters.
Replacement Considerations
Check for direct pin-to-pin replacements within the RT8120 family or other single-phase synchronous buck controllers from Richtek. Verify that any substitute matches the input voltage range, switching frequency, and package outline drawing to ensure mechanical and electrical compatibility.
