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R1225N332C-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：PWM
- 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：300kHz
- Duty Cycle (Max)：100%
- Synchronous Rectifier：No
- Clock Sync：No
- Serial Interfaces：-
- Control Features：Enable
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：SOT-23-6
- Supplier Device Package：SOT-23-6W
- Grade：-
- Qualification：-
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Overview
The R1225N332C-TR-FE is a step-down DC/DC controller manufactured by Nisshinbo Micro Devices Inc. It supports an input voltage range of 2.3 V to 18.5 V and operates with PWM or VFM control modes. The device features a fixed switching frequency of 300 kHz and provides positive output configuration. It is housed in a surface-mount SOT-23-6W package and functions within a temperature range of -40°C to +85°C.
Feature Summary
- Supports both Pulse Width Modulation (PWM) and Variable Frequency Mode (VFM) for optimized efficiency across load conditions.
- Accepts wide input voltage ranges up to 18.5 V, suitable for various power supply architectures.
- Integrates a fixed 300 kHz switching frequency to minimize external component size.
Applications
- Portable electronic devices requiring efficient step-down power conversion
- Battery-powered systems utilizing single-cell lithium-ion configurations
- Embedded applications with strict space constraints due to compact packaging
Procurement Notes
Verify the specific suffix 'TR-FE' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the SOT-23-6W physical dimensions align with the target PCB footprint design. Ensure the operating temperature rating meets the environmental requirements of the final application environment before procurement.
Selection Notes
Select this component when a buck controller is needed with a maximum input voltage of 18.5 V. It is appropriate for designs requiring a fixed 300 kHz switching frequency. Consider this part if the application benefits from selectable PWM/VFM operation modes to balance noise and efficiency. Verify compatibility with the desired output voltage setting via external resistor networks.
Part Context
This component belongs to the R1225N series of switching controllers designed for step-down applications. It serves as a core power management integrated circuit within the broader portfolio of Nisshinbo Micro Devices PMIC solutions. The series targets high-efficiency power conversion needs in consumer electronics and industrial modules.
Replacement Considerations
Consult official manufacturer substitution lists for verified equivalents. Cross-reference pinout compatibility and electrical specifications such as input voltage limits and switching frequencies when evaluating alternative parts.
