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Product Detailed Parameters
- Description：IC VREF SERIES 0.05% SOT23-5
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：-
- Current - Output：20 mA
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：SOT-23-5 Thin, TSOT-23-5
- Supplier Device Package：SOT-23-THIN
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The REF2025QDDCRQ1 is an automotive-grade dual-output voltage reference featuring a 2.5 V VREF output and a 1.25 V VBIAS (VREF/2) output. It operates within a supply voltage range of VREF + 0.02 V to 5.5 V, consuming a maximum quiescent current of 460 µA across the -40°C to +125°C temperature range. The device provides high initial accuracy of ±0.05% and low temperature drift of 8 ppm/°C. Both outputs support ±20 mA load currents with a dropout voltage as low as 10 mV.
Feature Summary
- Dual-output architecture providing precise VREF and VBIAS voltages for single-supply systems
- High precision with ±0.05% initial accuracy and 8 ppm/°C maximum temperature drift
- Low dropout voltage enabling operation from very low input voltages
- Bidirectional output capability sourcing and sinking up to ±20 mA
Applications
- Telematics control systems
- Battery management systems
- Inverter and motor control applications
- Automotive gateway modules
- On-board chargers
Procurement Notes
Verify that the specific suffix QDDCRQ1 corresponds to the AEC-Q100 qualified automotive grade variant with the SOT-23-5 package. Confirm functional safety documentation availability if required for system design. Ensure the ordering code matches the exact voltage configuration and packaging requirements for the target application.
Selection Notes
Select this component when a stable mid-rail bias voltage is required alongside a primary reference in single-supply ADC circuits. The integrated VBIAS output eliminates the need for external resistor dividers, reducing board space and cost. Consider the low dropout characteristic for battery-operated systems where input voltage may approach the output level.
Part Context
This part belongs to the REF20xx-Q1 family of low-drift, low-power dual-output voltage references. The family includes variants with different nominal output voltages, such as 3.0 V, 3.3 V, and 4.096 V, all sharing the same dual-output topology and performance characteristics. The Q1 designation indicates automotive qualification.
Replacement Considerations
Other members of the REF20xx-Q1 family, such as REF2030QDDCRQ1 or REF2033QDDCRQ1, offer identical pinouts and features but with different fixed output voltages.
