AS1372-BWLT-12

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

The AS1372-BWLT-12 is a dual supply rail linear regulator providing a fixed 1.2V output with a maximum current of 350mA. It operates with an input voltage range of 0.7V to 4.5V and a bias supply of 2.5V to 5.5V. The device features a dropout voltage of 135mV at full load, output accuracy of ±1.5%, and shutdown current of 10nA. It includes overcurrent and thermal protection, operates from -40°C to +85°C, and uses a 5-bump CS-WLP package.

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

• Dual supply architecture utilizing separate VIN and VBIAS pins for optimized efficiency and low dropout performance.
• Integrated chip enable input allowing precise power management with ultra-low shutdown current.
• Built-in robust protection mechanisms including thermal shutdown and current limiting to prevent damage during fault conditions.

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

• Powering core voltages in cordless and mobile phones
• Supplying battery-operated MP3 players and PDAs
• Providing regulated power for hand-held computers and digital cameras

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

Verify the specific ordering code AS1372-BWLT-12 against manufacturer documentation to confirm the 1.2V fixed output configuration. Ensure compatibility with the required 5-bump CS-WLP footprint and check for any RoHS compliance requirements prior to finalizing procurement specifications.

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

Select this component when designing systems requiring independent control of input and bias supplies to maximize efficiency at low output voltages. It is suitable for applications needing fast transient response and minimal quiescent current draw while maintaining stable regulation under varying load conditions.

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

This part belongs to the AS1372 series of dual rail linear regulators manufactured by ams OSRAM. The series is designed specifically for portable electronics where battery life and space constraints are critical. The BWLT suffix indicates the tape and reel packaging format and the specific 1.2V output variant within the product family.

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

Direct substitutes include other variants within the AS1372 series such as AS1372-BWLT-10 or AS1372-BWLT-15 if different output voltages are acceptable. Verify pinout and package dimensions match before replacing.

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

What is the typical dropout voltage for the AS1372-BWLT-12?

The typical dropout voltage is 135mV when operating at a load current of 350mA.

How does the dual supply architecture benefit this regulator?

It allows the drain-to-source voltage of the output transistor to be minimized independently from the internal circuitry's dynamic range, improving efficiency and reducing dropout at low output voltages.