AN1281SSMTXL

Overview

The AN1281SSMTXL is a ripple filter IC designed to reject ripple components superimposed on regulator outputs. It is primarily used for VCO bias in cellular phones to improve C/N and S/N ratios. The device operates within a supply voltage range of 2.5V to 4.3V, with an absolute maximum rating of 4.5V. At VIN = 3.0V and IOUT = -15mA, the output voltage typically ranges from 2.55V to 2.70V. Ripple rejection ratios are 29.5dB at 1kHz, 33.5dB at 25kHz, and 29.1dB at 100kHz. Consumption current varies between 320µA and 1.42mA depending on load and voltage. The component utilizes an SSMINI-5DA package.

Feature Summary

• Rejects ripple components superimposed on regulator outputs
• Reduces mounting area through SSmini-type packaging

Applications

• Cellular phones
• VCO bias circuits

Procurement Notes

Verify product lifecycle status before procurement as the datasheet indicates maintenance or discontinued stages. Consult official Panasonic semiconductor channels for current availability and latest specifications. Ensure compliance with export control laws if applicable. Confirm that the specific ordering suffix matches the required package and tape/reel configuration.

Selection Notes

Select this component when low I/O voltage difference and compact footprint are required for RF applications. Verify that the operating ambient temperature range of -25°C to +75°C meets system requirements. Ensure external capacitance values align with the recommended design reference data for stable operation.

Part Context

This part belongs to the AN1281SSM series of ripple filter ICs manufactured by Panasonic Electronic Components. The 'TXL' suffix denotes specific packaging or reel configurations. The series is engineered for mobile communication devices requiring high signal integrity.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.