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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 R1224N262F-TR-FE is a non-isolated Buck DC/DC controller manufactured by Nisshinbo Micro Devices. It operates within an input voltage range of 2.3 V to 18.5 V and provides a fixed output voltage of 2.6 V. The device supports a switching frequency of 260 kHz and delivers a maximum output current of 50 mA. It functions in an adjustable duty cycle environment up to 100%. The component is rated for operation between -40°C and +85°C, housed in an SOT-23-5 package.
Feature Summary
- Supports PWM/VFM step-down DC/DC conversion topology
- Fixed output voltage configuration for simplified design
- Low quiescent current operation for efficiency
Applications
- Portable electronic devices requiring efficient step-down power management
- Battery-powered systems needing stable low-voltage regulation
- General-purpose DC/DC converter circuits in consumer electronics
Procurement Notes
Verify the specific suffix 'F' against the official Nisshinbo datasheet to confirm the exact output voltage and feature set, as suffixes denote critical electrical variations. Ensure the ordering quantity aligns with manufacturer reel requirements. Cross-reference the Mouser part number 848-R1224N262F-TR-FE for accurate sourcing details and availability status before finalizing procurement plans.
Selection Notes
Select this component when a fixed 2.6 V output is required from a wide input range. The SOT-23-5 package suits space-constrained designs. Compare against other series variants like R1224N102M or R1224N182E if different output voltages or frequencies are needed. Consider the 50 mA current limit for load requirements.
Part Context
This part belongs to the R1224N series of switching controllers from Nisshinbo Micro Devices. The series includes various fixed-output voltage options such as 1.0 V, 1.8 V, and 5.0 V. All members share similar Buck topology characteristics and packaging, differing primarily in output voltage settings and switching frequencies defined by their alphanumeric suffixes.
Replacement Considerations
Direct substitutes within the same family include R1224N102M-TR-FE (1.0 V), R1224N182E-TR-FE (1.8 V), and R1224N502H-TR-FE (5.0 V). These parts share identical pinouts and packages but provide different fixed output voltages. Verify that the system load can be supported by the 50 mA current rating common to these variants.
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