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R1223N182B-TR-FE
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Product Detailed Parameters
- Description：13.2V INPUT PWM/VFM STEP-DOWN DC
- Series：-
- Mfr：Nisshinbo Micro Devices Inc.
- Package：Tape & Reel (TR)
- Output Type：PWM
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：2.3V ~ 13.2V
- 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 R1223N182B-TR-FE is a PWM step-down DC/DC converter controller manufactured by Nisshinbo Micro Devices. It operates with an input voltage range of 2.3 V to 13.2 V and provides a fixed output voltage of 1.8 V. The device features a switching frequency of 500 kHz and supports up to 100% duty cycle. It consumes 140 uA of operating supply current. The component is housed in an SOT-23-5 package, suitable for surface mount installation, and functions within a temperature range of -40 C to +85 C.
Feature Summary
- Non-isolated buck topology for efficient voltage conversion
- Fixed 1.8 V output capability
- Low quiescent current operation at 140 uA
- Integrated 500 kHz switching frequency
Applications
- Battery-powered portable electronics
- General-purpose low-voltage power supplies
- Embedded system core voltage regulation
Procurement Notes
Verify the specific suffix 'B' against official datasheets to confirm exact electrical tolerances and pinout compatibility. Ensure the ordering quantity aligns with the standard reel packaging requirements specified by the manufacturer. Cross-reference the RoHS status and environmental compliance documentation prior to final procurement decisions.
Selection Notes
Select this controller when a fixed 1.8 V output is required from inputs between 2.3 V and 13.2 V. Consider the 140 uA standby current for battery efficiency. The SOT-23-5 package limits thermal dissipation; ensure adequate PCB layout for heat management. Verify that the 500 kHz frequency matches the external component selection constraints.
Part Context
This part belongs to the R1223N series of switching controllers from Nisshinbo Micro Devices. The series focuses on non-isolated buck applications. The '182' designation typically indicates the fixed output voltage level. The 'TR-FE' suffix denotes the tape and reel packaging format.
Replacement Considerations
R1223N182H-TR-FE offers similar buck controller functionality with potentially different internal reference or tolerance specifications. R1223N332A-TR-FE provides a different fixed output voltage (3.3 V) but shares the same series architecture and package type.
