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R1224N302F-TR-FE
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Product Detailed Parameters
- Description：18.5V INPUT PWM/VFM STEP-DOWN DC
- Series：-
- Mfr：Nisshinbo Micro Devices Inc.
- Package：Tape & Reel (TR)
- Output Type：Transistor Driver
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：2.3V ~ 18.5V
- Frequency - Switching：500kHz
- Duty Cycle (Max)：100%
- Synchronous Rectifier：No
- Clock Sync：No
- Serial Interfaces：-
- Control Features：Enable
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：SC-74A, SOT-753
- Supplier Device Package：SOT-23-5
- Grade：-
- Qualification：-
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Overview
The R1224N302F-TR-FE is a step-down DC/DC controller manufactured by Nisshinbo Micro Devices. It supports an input voltage range up to 18.5V and utilizes PWM/VFM control modes for efficient power conversion. The device operates within a temperature range of -40°C to +85°C and features a maximum duty cycle of 100%. It does not include a synchronous rectifier or clock synchronization capabilities. Control functions are managed via an enable pin, making it suitable for applications requiring robust voltage regulation in compact designs.
Feature Summary
- Supports high input voltage up to 18.5V
- Combines PWM and VFM control modes
- Features 100% maximum duty cycle
Applications
- Step-down DC/DC converter circuits
- Industrial power management systems
- Consumer electronics voltage regulation
Procurement Notes
Verify the specific suffix 'F' against the manufacturer's datasheet to confirm internal resistor settings and output voltage configuration. Ensure the SOT-23-5 package variant matches your PCB footprint requirements. Confirm RoHS compliance status through official documentation before finalizing procurement specifications.
Selection Notes
Select this component when a wide input voltage range up to 18.5V is required for step-down applications. Consider its PWM/VFM hybrid operation for efficiency across varying load conditions. Verify that the non-synchronous design aligns with your system's cost and complexity constraints compared to integrated switching regulators.
Part Context
This part belongs to the R1224N series of switching controllers from Nisshinbo Micro Devices. The series focuses on providing flexible voltage regulation solutions with high input tolerance. The R1224N302F-TR-FE specifically addresses applications needing reliable step-down conversion without the complexity of fully integrated power stages.
Replacement Considerations
Check the R1224N302H-TR-FE for potential functional similarities within the same product family. Verify pinout compatibility and electrical parameter alignment before substituting any alternative components.
