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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ SOT25
- Series：*
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR),Tape & Reel (TR),Cut Tape (CT)
- 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 AP432QL-7 is a three-terminal adjustable precision shunt regulator manufactured by Diodes Incorporated. It provides a reference voltage of 1.24 V with an initial accuracy tolerance of ±1%. The device supports a maximum cathode current of 200 mA and operates within a supply voltage range up to 36 V. It features a temperature coefficient of 30 PPM/°C and functions within an operating temperature range from -20°C to +85°C. The component utilizes an SOT-25 surface-mount package and draws a maximum operating supply current of 10 mA.
Feature Summary
- Three-terminal adjustable precision shunt regulation architecture
- Guaranteed stable reference voltage over extended commercial temperature ranges
- Output voltage setting capability via external resistor divider network
Applications
- Precision voltage reference sources in power management circuits
- Programmable output voltage control in switching regulators
- Battery-powered equipment requiring stable reference voltages
Procurement Notes
Verify the specific suffix designation against official Diodes Incorporated documentation to confirm pinout compatibility and electrical specifications. Confirm that the selected variant meets the required thermal and voltage ratings for the intended application environment before integration into the design.
Selection Notes
Select this component when a low-cost, high-current shunt regulator is required for voltage referencing or feedback loop stabilization. Ensure the external resistor network allows the output voltage to remain above the internal reference threshold while staying within the maximum supply voltage limits defined in the datasheet.
Part Context
This part belongs to the AP432 family of adjustable precision shunt regulators. These devices serve as alternatives to standard Zener diodes, offering superior stability and lower dynamic impedance. The series is designed for applications requiring precise voltage regulation in compact surface-mount configurations.
Replacement Considerations
AP432ARG-7
FAQ
What is the minimum operating current required for stable regulation?
The device requires a minimum cathode current to maintain regulation, typically specified at 150 µA or 300 µA depending on the specific test conditions outlined in the datasheet.
How is the output voltage adjusted?
The output voltage is set to any level greater than 1.24 V by connecting two external resistors in series between the cathode and ground, with the junction connected to the reference terminal.
