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R1225N552K-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 R1225N552K-TR-FE is a step-down DC-DC converter manufactured by Nisshinbo Micro Devices Inc. It operates with an input voltage range of 2.3V to 18.5V and features a fixed output voltage of 5.5V. The device utilizes PWM/VFM control modes for efficient power conversion. Packaged in a compact SOT-23-6W format, it is designed for space-constrained applications requiring stable voltage regulation.
Feature Summary
- Supports wide input voltage range up to 18.5V
- Fixed 5.5V output voltage capability
- Combines PWM and VFM control modes
- Compact SOT-23-6W surface mount package
Applications
- Portable electronic devices
- Battery-powered systems
- Industrial control modules
- Consumer electronics power supplies
Procurement Notes
Verify the exact part number suffix against official Nisshinbo documentation to ensure correct output voltage and package variant. Confirm RoHS compliance status and lead-free specifications prior to ordering. Check distributor availability for tape and reel quantities as standard packaging may vary by region.
Selection Notes
Select this component when a fixed 5.5V output is required from a wide input range. Ensure the load current requirements fall within the device's specified limits. Consider thermal performance in the SOT-23-6W package for high-current applications. Verify compatibility with system control logic for PWM/VFM mode switching.
Part Context
This model belongs to the R1225N series of buck regulators from Nisshinbo Micro Devices. The series offers various fixed output voltages and input ranges. The '552' designation typically indicates the specific 5.5V output version. The 'TR-FE' suffix denotes tape and reel packaging with environmental compliance.
Replacement Considerations
Check for direct pin-compatible alternatives within the same Nisshinbo family. Compare input voltage ranges and output current capabilities of potential substitutes. Verify that replacement parts support the same PWM/VFM control scheme and package dimensions.
