AN1431M

Description：IC VREF SHUNT ADJ 2% 3HSIP
Series：-
Mfr：Panasonic Electronic Components
Package：Bulk

SKU:a66c39a9bde5 Category: Voltage Reference Brand: Panasonic Electronic Components

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Product introduction

Product Detailed Parameters

Description：IC VREF SHUNT ADJ 2% 3HSIP
Series：-
Mfr：Panasonic Electronic Components
Package：Bulk
Output Type：Adjustable
Voltage - Output (Min/Fixed)：2.5V
Voltage - Output (Max)：36 V
Current - Output：100 mA
Operating Temperature：-25°C ~ 80°C (TA)
Mounting Type：Surface Mount
Package / Case：TO-243AA
Supplier Device Package：3-HSIP
Grade：-
Qualification：-

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AN1431M

Overview

The AN1431M is a variable output shunt regulator in an HSIP-3 package. It provides a highly accurate reference voltage of 2.5V with ±2% tolerance and low temperature stability of 17ppm/°C typ. The output voltage is externally adjustable from approximately 2.5 to 36V using external resistors. Key electrical characteristics include a low input impedance of 0.2Ω typ, low output noise, and fast rising output. It operates within a supply voltage range up to 37V and supports a cathode current range of -0.05 to +10mA.

Feature Summary

High precision reference voltage with tight tolerance
Low temperature drift for stable performance
Externally adjustable output voltage range
Fast response characteristic suitable for Zener diode replacement

Applications

Shunt regulators
Constant current power supplies
Adjustable output regulators combined with 3-pin regulators

Procurement Notes

Verify the specific package variant (HSIP-3) and lead-free status (SSIP003-P-0000S or HSIP003-P-0000Q) against the latest Panasonic semiconductor product standards before ordering. Confirm that the application does not fall under special high-reliability categories such as aerospace or medical life support systems, which require separate consultation. Ensure design parameters remain within absolute maximum ratings to prevent device failure.

Selection Notes

Select the AN1431M when a precise, adjustable voltage reference is required in compact designs. Its low dynamic impedance and fast rise time make it suitable for replacing traditional Zener diodes in applications demanding higher accuracy. Consider the thermal dissipation capabilities on standard glass epoxy boards when determining heat management requirements for the surface-mount package.

Part Context

The AN1431M belongs to the AN1431 series of variable output shunt regulators manufactured by Panasonic Electronic Components. It is functionally similar to other industry-standard shunt regulators but offers specific performance metrics regarding temperature stability and input impedance. The 'M' suffix denotes the HSIP-3 surface-mount package variant, distinct from the through-hole 'T' version.