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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 2.4% SOT89
- Series：-
- Mfr：Renesas Electronics Corporation
- Package：Bulk
- Output Type：-
- Voltage - Output (Min/Fixed)：-
- Voltage - Output (Max)：-
- Current - Output：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The UPC1944T-1-E2-AZ is an adjustable precision shunt voltage reference IC manufactured by Renesas Electronics. It operates within a serial VREF input voltage range of 1.26 V to 24 V and supports a maximum shunt current of 30 mA. The device features an initial accuracy of ±2.4% and functions across a temperature range from -30°C to +85°C. Packaged in a SOT-89-3 surface-mount format, it serves as a stable reference source for power management applications requiring precise voltage regulation.
Feature Summary
- Adjustable output voltage capability via external resistor network
- High initial accuracy for precise reference applications
- Compact SOT-89-3 surface-mount package design
Applications
- Precision analog-to-digital converter (ADC) reference sources
- Portable instrumentation voltage regulation
- Battery-powered equipment reference circuits
Procurement Notes
Verify the specific suffix E2-AZ against the manufacturer's latest datasheet to confirm pinout compatibility and RoHS status. Ensure the ordering code matches the required packaging format, such as cut tape or reel, as availability varies by distributor. Cross-reference the part number with official Renesas documentation to validate electrical specifications before integration into production designs.
Selection Notes
Select this component when an adjustable shunt reference is required with moderate current capacity. The 30 mA limit suits low-power applications, while the wide input voltage range allows flexibility in supply rail design. Consider thermal performance and package constraints during PCB layout to ensure reliable operation within the specified temperature range.
Part Context
This part belongs to the UPC1944 series of precision shunt regulators. It shares functional similarities with other adjustable references but offers specific electrical characteristics tailored for compact power management solutions. The series is designed to provide stable voltage references in space-constrained electronic devices.
Replacement Considerations
Direct substitutes include the UPC1943T-E2-A and UPC1944GR-A. Verify that alternative parts match the SOT-89-3 package and electrical limits. Check datasheets for differences in initial accuracy and operating temperature ranges to ensure circuit compatibility.
