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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 0.5% SOT23-5
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：36 V
- Current - Output：100 mA
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：SC-74A, SOT-753
- Supplier Device Package：SOT-23-5
- Grade：-
- Qualification：-
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Overview
The AS431AKTR-G1 is an adjustable precision shunt regulator manufactured by Diodes Incorporated, housed in a SOT25 surface-mount package. It provides programmable output voltage ranging from 2.5V to 36V with a tight initial accuracy of 0.5%. The device operates within a wide ambient temperature range of -40°C to +125°C and features a typical low temperature coefficient of 20PPM/°C. It supports a cathode current sink capacity between 1mA and 100mA, ensuring stable regulation under capacitive loads.
Feature Summary
- Programmable precise output voltage spanning from 2.5V to 36V
- High stability performance when driving capacitive loads
- Low equivalent full-range temperature deviation for thermal consistency
- Wide operating temperature range suitable for harsh environments
Applications
- Switching power supplies
- Charger circuits
- Voltage adapters
- Graphic cards
- Precision voltage references
Procurement Notes
Verify the specific ordering suffix G1 confirms RoHS compliance and Green molding compound status against the manufacturer's latest documentation. Confirm the SOT25 package variant matches the required pinout and footprint dimensions for the target PCB layout. Ensure the 0.5% voltage tolerance specification aligns with the design requirements before finalizing procurement orders.
Selection Notes
Select this component when a high-precision adjustable reference is needed in a compact SOT25 form factor. The 0.5% tolerance offers tighter accuracy than standard 1.0% variants. Consider the thermal resistance characteristics of the SOT25 package for heat dissipation needs. Verify that the 36V maximum cathode voltage meets the system's supply rail constraints.
Part Context
This part belongs to the AS431 family of three-terminal adjustable shunt regulators designed as Zener diode substitutes. The AKTR-G1 designation specifically identifies the SOT25 package with 0.5% tolerance and Green compliant packaging. It serves as a core PMIC component for regulating voltages in power management systems requiring stable reference points.
Replacement Considerations
AS431ANTR-G1 (SOT23 package)
FAQ
What is the minimum cathode current required for regulation?
The minimum cathode current for regulation is typically 0.4mA, with a maximum specified value of 1.0mA.
Is the AS431AKTR-G1 suitable for operation under heavy capacitive loads?
Yes, the device features high stability under capacitive loads, making it suitable for such applications without oscillation.
