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R1225N152J-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：180kHz
- 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 R1225N152J-TR-FE is a step-down DC/DC controller manufactured by Nisshinbo Micro Devices. It operates with an input voltage range of 2.3 V to 18.5 V and supports a switching frequency of 180 kHz. The device combines PWM and VFM control modes for efficient power management. It is housed in an SOT-23W-6 package and functions within an operating temperature range of -40°C to 85°C.
Feature Summary
- Supports combined PWM and VFM control modes for optimized efficiency across load conditions
- Operates with a wide input voltage range from 2.3 V to 18.5 V
- Designed for buck converter applications with fixed 180 kHz switching frequency
Applications
- Step-down DC/DC power supply circuits
- Battery-powered portable electronic devices
- Industrial control systems requiring regulated voltage conversion
Procurement Notes
Verify the specific suffix J against official datasheets to confirm pinout and electrical characteristics, as suffixes often denote package variations or tolerance grades. Ensure compatibility with external components such as inductors and capacitors based on the 180 kHz switching frequency requirements. Confirm RoHS compliance status through manufacturer documentation prior to integration into production environments.
Selection Notes
Select this component when a wide input voltage range up to 18.5 V is required for buck conversion. The fixed 180 kHz frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the SOT-23W-6 package for space-constrained designs requiring robust thermal performance. Evaluate the need for mixed-mode operation to balance efficiency at light and heavy loads.
Part Context
This part belongs to the R1225N series of switching controllers from Nisshinbo Micro Devices. The series focuses on providing reliable step-down voltage regulation for various consumer and industrial applications. The R1225N152J variant specifically addresses needs for higher input voltage tolerance and stable operation in demanding environments.
Replacement Considerations
Direct substitutes include other parts within the R1225N series with compatible suffixes, provided they match the SOT-23W-6 package and electrical specifications. Cross-reference with similar buck controllers from other manufacturers only if pinouts and control modes are identical.
