ChipApex | Global Electronic Components Supplier
R1224N302M-TR-FE
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
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：-
Download product information
Overview
The R1224N302M-TR-FE is a non-isolated Buck DC/DC controller manufactured by Nisshinbo Micro Devices. It operates with an input voltage range of 2.3 V to 18.5 V and provides a fixed output voltage of 3.0 V. The device supports a switching frequency of 300 kHz and features a maximum duty cycle of 100%. It functions within a temperature range of -40°C to +85°C and consumes a typical operating supply current of 20 µA. Packaged in an SOT-23-5 surface-mount case, it is designed for efficient step-down conversion applications.
Feature Summary
- Supports PWM and VFM operation modes for optimized efficiency across varying load conditions
- Enables high efficiency at light loads through automatic mode transition capabilities
- Features a wide input voltage range suitable for battery-powered systems
Applications
- Portable electronic devices requiring efficient power management
- Battery-operated consumer electronics
- General-purpose step-down power supply circuits
Procurement Notes
Verify the specific suffix 'M' indicates the fixed 3.0 V output configuration when sourcing replacements. Confirm that the 'TR-FE' designation corresponds to the standard tape-and-reel packaging format required for automated assembly processes. Ensure compatibility with the SOT-23-5 footprint during procurement planning.
Selection Notes
Select this component when a fixed 3.0 V output is required from a variable input source up to 18.5 V. Consider the 300 kHz switching frequency for balancing component size and efficiency. Evaluate the 20 µA quiescent current against system standby requirements. The absence of a shutdown pin limits control flexibility compared to other variants in the series.
Part Context
This part belongs to the R1224N series of switching controllers from Nisshinbo Micro Devices. The series offers various fixed output voltages and switching frequencies. The R1224N302M-TR-FE specifically addresses applications needing a stable 3.0 V rail with moderate switching speeds.
Replacement Considerations
Direct substitutes include other R1224N variants with identical SOT-23-5 packaging and similar electrical characteristics, such as R1224N182E-TR-FE or R1224N102M-TR-FE, provided the output voltage difference is acceptable for the target circuit design.
