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Product Detailed Parameters
- Description：IC VREF SHUNT 3% SOT23
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：1.22V
- Voltage - Output (Max)：-
- Current - Output：20 mA
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3
- Grade：-
- Qualification：-
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Overview
The ZXRE1004FFTA is a 1.22V shunt precision voltage reference in an SOT-23 package, manufactured by Diodes Incorporated. It operates within a current range of 8µA to 20mA with a typical knee current of 4µA. The device features a 3% initial accuracy and a temperature coefficient ranging from 20ppm/°C to 75ppm/°C. Designed for ultra-low power consumption, it maintains stability under capacitive loads and supports an operating temperature range of -40°C to +85°C.
Feature Summary
- Ultra-low power operation with a typical knee current of 4µA
- Unconditionally stable performance even with capacitive loads
- High-performance alternative to legacy REF1004 and LT1004 references
- Totally lead-free and fully RoHS compliant construction
Applications
- Battery powered equipment
- Precision power supplies
- Portable instrumentations
- Data acquisition systems
- A/D and D/A converters
Procurement Notes
Verify component status before procurement as the ZXRE1004 series is marked obsolete and not recommended for new designs. Confirm availability through authorized distributors and check for end-of-life notifications. Ensure final design integration utilizes the recommended replacement part ZXRE125FFTA to maintain long-term supply chain stability and compliance.
Selection Notes
Select this component for portable applications requiring minimal quiescent current and space efficiency in an SOT-23 footprint. Consider the 3% tolerance and specified temperature coefficient for circuit accuracy requirements. Evaluate the 8µA minimum operating current against system load demands to ensure proper regulation. Verify compatibility with existing PCB layouts designed for legacy reference equivalents.
Part Context
This device belongs to the ZXRE1004 series of micro-power bandgap voltage references. It serves as a direct pin-compatible replacement for industry-standard references like the LM185 and REF1004. The series offers various tolerance options, with the F suffix indicating a 3% accuracy grade. It is categorized under PMIC voltage references for low-power management.
Replacement Considerations
The datasheet explicitly recommends using the ZXRE125FFTA as the replacement for this obsolete part number. Both devices share identical electrical characteristics and the SOT-23 package, ensuring a drop-in upgrade path without circuit redesign.
