AS1353-26-T

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The AS1353-26-T is a fixed-voltage linear low-dropout regulator (LDO) manufactured by ams OSRAM USA INC. It provides a nominal output voltage of 2.6V with a maximum continuous output current of 150mA. The device operates within an input voltage range of 2.5V to 5.5V and features ultra-low dropout characteristics, achieving as low as 40mV at a 100mA load. It incorporates integrated P-channel MOSFET technology for efficient power management and includes comprehensive protection mechanisms such as over-current limiting, thermal shutdown, and reverse-battery protection.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Integrated P-channel MOSFET pass transistor enables low quiescent current consumption across varying load conditions.
• Built-in reverse-battery protection disconnects internal circuitry if the battery polarity is connected incorrectly.
• Active-low shutdown control reduces supply current to less than 1µA when the SHDNM pin is grounded.
• Internal thermal overload and over-current protection circuits automatically switch off the device under fault conditions.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Powering portable mobile phones and cordless devices
• Supplying power to MP3 players and handheld computers
• Operating digital cameras and PDAs
• Providing regulated voltage for CD and DVD players

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific part number AS1353-26-T against official manufacturer documentation to confirm the 2.6V output specification. Ensure compatibility with the required 5-pin SOT23 package footprint. Confirm that the application design accounts for the thermal resistance characteristics and heat dissipation requirements associated with the ground pin functionality.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component for applications requiring a stable 2.6V rail from a single-cell lithium-ion or alkaline battery source. The device is suitable where low dropout performance is critical during battery discharge. Designers must ensure the use of ceramic output capacitors with appropriate ESR values to maintain stability. Consider the thermal environment when determining the necessary copper area for the ground plane connection.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This component belongs to the AS1353/AS1356 family of linear LDO regulators designed for battery-powered electronics. The AS1353 variant specifically lacks the Power-OK monitoring feature found in the AS1356 series. Both families share identical pinouts and core protection features, differing primarily in the availability of status output signals. The product line targets cost-sensitive consumer electronics markets.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Cross-reference tools may suggest compatible alternatives from other manufacturers. Verify that any substitute maintains the 2.6V output voltage, 150mA current capability, and SOT23-5 package dimensions. Ensure the replacement device supports the same input voltage range and offers equivalent thermal and electrical protection features.