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RT9214CPS
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Product Detailed Parameters
- Description：IC REGULATOR CONTROLLER
- Series：-
- Mfr：Richtek USA Inc.
- Package：Bulk
- Output Type：Transistor Driver
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：12V
- Frequency - Switching：300kHz
- Duty Cycle (Max)：100%
- Synchronous Rectifier：Yes
- Clock Sync：No
- Serial Interfaces：-
- Control Features：Phase Control
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOP
- Grade：-
- Qualification：-
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Overview
The RT9214CPS is a high-efficiency synchronous buck PWM DC-DC controller manufactured by Richtek USA Inc. Designed for generating logic-supply voltages in PC-based systems, this single-output device integrates internal soft-start and frequency compensation networks. It operates with 5V or 12V supply voltages and utilizes voltage mode PWM control with a fixed 300kHz oscillator. The controller features a fast transient response via a high-speed GM amplifier and supports a full 0 to 100% duty ratio.
Feature Summary
- Integrates adaptive non-overlapping gate driver capable of driving all low-cost N-channel MOSFETs
- Includes over-current fault monitoring on the MOSFET without requiring an external current sense resistor
- Features internal soft-start and complete frequency compensation networks within a single package
Applications
- PC-based system logic supply generation
- General purpose DC-DC conversion for computing platforms
Procurement Notes
Verify the specific suffix 'CPS' against the official Richtek datasheet to confirm pinout compatibility and thermal pad configuration. Confirm RoHS compliance status and lead-free certification requirements for your assembly process. Check for any recent product change notices (PCN) or end-of-life announcements prior to finalizing design-in decisions.
Selection Notes
Select this component when designing synchronous buck converters for PC logic supplies requiring 5V or 12V input. It is suitable for applications needing integrated protection without external sensing resistors. Ensure the design accommodates the 300kHz switching frequency and utilizes N-channel MOSFETs compatible with the internal driver capabilities.
Part Context
The RT9214 series belongs to Richtek's portfolio of high-performance power management ICs tailored for computing applications. As a synchronous buck controller, it replaces discrete solution designs by integrating control, adjustment, and protection functions. This family focuses on efficiency and compactness for logic voltage regulation in personal computers and similar electronic systems.
Replacement Considerations
Consult the official datasheet cross-reference section for verified substitutes. Generic replacements may differ in gate drive strength or protection thresholds.
