L272

Overview

The L272 is a dual power operational amplifier manufactured by STMicroelectronics. It features a gain-bandwidth product of 350 kHz and a slew rate of 1 V/µs. The device supports supply voltages ranging from 4 V to 28 V (single) or 2 V to 14 V (dual). Key electrical parameters include an input bias current of 2.5 µA, input offset voltage of 60 mV, and output current capability up to 1 A per channel. It offers a common-mode rejection ratio of 60 dB and operates within a temperature range of -40°C to +85°C.

Feature Summary

• Integrated thermal shutdown protection for enhanced reliability under overload conditions
• Capable of delivering high output current up to 1 A with low saturation voltage
• Ground-compatible inputs allowing operation with large common-mode and differential-mode voltage ranges

Applications

• Servo amplifiers
• Power supplies
• Compact disc drives
• Video cassette recorders

Procurement Notes

Verify the specific package variant required, as the L272 series includes Powerdip, Minidip, and SO packages. Confirm that the selected part number matches the intended pinout and thermal characteristics for the target application. Ensure compliance with RoHS directives if applicable to the manufacturing process.

Selection Notes

Select this component when high output current drive is necessary without external booster stages. It is suitable for applications requiring ground-referenced inputs and wide supply voltage flexibility. Consider the thermal management requirements due to the high output current capability and internal power dissipation during operation.

Part Context

The L272 belongs to the L272 series of monolithic integrated circuits designed as power operational amplifiers. It combines high gain with significant output power capabilities, serving as a complete solution where traditional op-amp and power booster combinations would otherwise be required. The series is engineered for robust performance in consumer and industrial electronic systems.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.