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R1224N102H-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：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 R1224N102H-TR-FE is a non-isolated Buck DC/DC controller from Nisshinbo Micro Devices. It operates with an input voltage range of 2.3 V to 18.5 V and delivers a fixed output voltage of 1.0 V. The device supports a switching frequency of 600 kHz and achieves a maximum duty cycle of 100%. Quiescent current is specified at 20 uA. It functions within a temperature range of -40°C to +85°C and is housed in a SOT-23-5 package.
Feature Summary
- Supports 100% maximum duty cycle for low dropout operation
- Utilizes PWM control mode for step-down conversion
- Features low quiescent current consumption
Applications
- Portable electronic devices requiring efficient power management
- Battery-powered systems needing stable 1.0 V rails
- Embedded circuits utilizing external MOSFET drivers
Procurement Notes
Verify the specific suffix H against official datasheets to confirm the 600 kHz switching frequency and 1.0 V fixed output configuration. Ensure compatibility with the required SOT-23-5 footprint and thermal constraints. Confirm that the supplier provides valid traceability documentation for the Nisshinbo Micro Devices origin.
Selection Notes
Select this component when a fixed 1.0 V output is required from a wide input range up to 18.5 V. The 600 kHz frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the need for external high-side and low-side NMOS transistors, as this is a controller rather than a complete converter.
Part Context
This part belongs to the R1224N series of switching controllers designed for buck applications. It differs from adjustable variants by providing a fixed internal reference for the output voltage. The series targets applications demanding high efficiency and compact form factors in power management integrated circuits.
Replacement Considerations
Cross-reference with other R1224N variants such as R1224N102M or R1224N102E if different switching frequencies or output tolerances are acceptable. Verify pinout compatibility before substitution.
