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R1224N182F-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 R1224N182F-TR-FE is a buck DC/DC controller manufactured by Nisshinbo Micro Devices. It operates with an input voltage range of 2.3V to 18.5V and features a fixed switching frequency of 500kHz. The device utilizes external high-side and low-side NMOS transistors for power conversion. It supports PWM and VFM control modes and includes an enable function. The component is housed in an SC-74A (SOT-753) package and functions within an operating temperature range of -40°C to 85°C.
Feature Summary
- Supports external high-side and low-side NMOS driving
- Integrates PWM and VFM control modes
- Includes enable pin functionality
Applications
- Buck DC/DC converter circuits
- Step-down power supply designs
- Battery-powered electronic devices
Procurement Notes
Verify the specific manufacturer part number against official datasheets to ensure compatibility with system requirements. Confirm that the SC-74A package dimensions align with PCB layout constraints. Check RoHS compliance status if required by project specifications. Ensure sourcing channels provide authentic components from Nisshinbo Micro Devices Inc. to maintain reliability.
Selection Notes
Select this controller when designing step-down converters requiring external MOSFETs for higher current handling or thermal management. The 500kHz switching frequency allows for compact passive component selection. Consider the 18.5V maximum input limit for input source compatibility. The fixed output type indicates it requires external feedback networks for voltage setting.
Part Context
This component belongs to the R1224N series of switch controllers from Nisshinbo Micro Devices. These devices are designed for efficient power management in portable and industrial applications. The series typically offers robust performance with minimal external component count, focusing on cost-effective solutions for standard voltage regulation tasks.
Replacement Considerations
Consult official substitution lists for compatible alternatives. Verify electrical parameters such as input voltage range and switching frequency match before replacing.
