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R1225N602D-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：500kHz
- 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 R1225N602D-TR-FE is a DC/DC controller IC designed for step-down (buck) applications. It supports an input voltage range of 2.3 V to 18.5 V and operates with a fixed switching frequency of 500 kHz. The device integrates PWM and VFM control modes to optimize efficiency across varying load conditions. It is housed in a compact SOT-23W-6 package and is rated for operation within a temperature range of -40°C to +85°C.
Feature Summary
- Supports wide input voltage range from 2.3 V to 18.5 V
- Integrates PWM and VFM control modes for efficient power management
- Fixed 500 kHz switching frequency for stable operation
Applications
- Step-down DC/DC converter circuits
- Battery-powered electronic devices
- General-purpose power supply systems
Procurement Notes
Verify the specific suffix 'TR-FE' against the manufacturer's official datasheet to confirm reel packaging and tape-and-reel specifications. Ensure the ordering quantity aligns with the standard reel size, as partial reels may not be available. Cross-reference the component marking with the official documentation to distinguish between similar variants within the R1225N series.
Selection Notes
Select this component when a buck controller with a wide input voltage range up to 18.5 V is required. The fixed 500 kHz frequency simplifies external component selection compared to adjustable frequency alternatives. Consider the SOT-23W-6 package constraints for thermal management and PCB layout space. Verify that the target application falls within the specified -40°C to +85°C operating temperature range.
Part Context
This part belongs to the R1225N series of switching regulators manufactured by Nisshinbo Micro Devices Inc. The series includes various configurations for step-up and step-down topologies. The R1225N602D-TR-FE specifically addresses the need for a robust buck controller capable of handling higher input voltages while maintaining high efficiency through combined PWM and VFM operation modes.
Replacement Considerations
Consult the official Nisshinbo Micro Devices Inc. replacement guide or cross-reference list for verified substitutes. Direct pin-to-pin replacements must match the SOT-23W-6 package and electrical specifications. Generic equivalents require careful validation of input voltage limits and switching frequency compatibility.
