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R1224N252M-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：180kHz
- 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 R1224N252M-TR-FE is a non-isolated Buck DC/DC controller from the Nisshinbo R1224N series. It operates with an input voltage range of 2.3 V to 18.5 V and provides an adjustable output voltage from 1 V to 18.5 V. The device utilizes PWM and VFM control modes at a fixed switching frequency of 180 kHz, supporting up to 100% duty cycle. It features low quiescent current of 20 uA and functions within a temperature range of -40°C to +85°C. Packaged in SOT-23-5.
Feature Summary
- Supports both PWM and VFM control modes for efficient power management across varying load conditions.
Applications
- Battery-powered portable electronic devices
- General-purpose step-down power supply circuits
- Embedded systems requiring isolated or non-isolated DC/DC conversion
Procurement Notes
Verify the specific suffix 'M' against official datasheets to confirm the exact output voltage setting or tolerance, as variations exist within the R1224N family. Ensure compatibility with the required SOT-23-5 footprint and thermal requirements. Confirm RoHS compliance status through the manufacturer's latest documentation before finalizing procurement specifications.
Selection Notes
Select this component when a wide input voltage range up to 18.5 V is required for Buck applications. The 180 kHz switching frequency allows for compact external component sizing. Consider the 20 uA standby current for battery-sensitive designs. Verify that the adjustable output range meets the target load requirements without exceeding the maximum input limits.
Part Context
This part belongs to the R1224N series of switching controllers designed for step-down conversion. It is categorized under PMIC - Power Management ICs. The series offers various output configurations distinguished by alphanumeric suffixes, all sharing the same core topology and package style for consistent design integration.
Replacement Considerations
Check for other R1224N variants with different suffixes if specific voltage settings differ. No direct public substitute part numbers are confirmed in the provided data.
