AN1433SSMTXL

Overview

The AN1433SSM is a low voltage operation and highly accurate positive voltage variable output type shunt regulator IC. Since the output voltage is adjustable from approximately 1.25 V to 15 V, it is suitable for a power supply of small-sized 3 V-system portable equipment. Also, it contributes to the miniaturization of set equipment by the adoption of the small type surface mounting package.

Feature Summary

• Highly accurate reference voltage: 1.25 V (allowance: ±1%)
• Low voltage operation: 1.25 V to 14 V
• Small type surface mounting package

Applications

• Cellular phone
• PHS
• office automation equipment and other small-sized portable equipment

Procurement Notes

Verify current lifecycle status via Panasonic Semiconductor official channels as maintenance/discontinued notices are frequently updated. Confirm lead-free SSMINI-5DA package availability if required. Ensure design compliance with absolute maximum ratings including cathode voltage and power dissipation limits at operating temperatures.

Selection Notes

Suitable for applications requiring precise voltage regulation in compact designs. Verify input voltage range compatibility within 1.25 V to 14 V. Consider thermal management due to low power dissipation rating. Check pinout compatibility with existing layouts, noting Pin 4 is N.C.

Part Context

Part of Panasonic's high accuracy shunt regulator series designed for portable electronics. Offers adjustable output voltage functionality with tight tolerance specifications. Utilizes surface mount packaging for automated assembly and space-constrained PCB designs.

Replacement Considerations

Public confirmed substitute part numbers: AN1431M, AN1431T, AN1432MS.