LTC1142LCG-ADJ#TRPBF

Overview

The LTC1142LCG-ADJ#TRPBF is a dual synchronous buck switching regulator controller manufactured by Analog Devices Inc. It operates within an input voltage range of 3.5 V to 20 V and delivers up to 700 mA output current per channel. The device features adjustable output voltages, a fixed switching frequency of 250 kHz, and a quiescent current of 160 µA. It is housed in a 28-pin SSOP package and supports operation temperatures from 0°C to +70°C.

Feature Summary

• Dual high-efficiency synchronous buck regulation architecture
• Integrated control for two independent step-down channels
• Adjustable output voltage configuration capability

Applications

• Portable battery-powered equipment requiring multiple voltage rails
• Industrial control systems with low-power logic interfaces
• Communication infrastructure power distribution modules

Procurement Notes

Verify the specific suffix TRPBF indicates tape-and-reel packaging when sourcing. Confirm the LC grade temperature range meets operational requirements. Ensure compatibility with external MOSFETs selected for the 250 kHz switching frequency. Validate pinout alignment with the 28-SSOP footprint during PCB layout review.

Selection Notes

Select this component when dual isolated or non-isolated buck outputs are required from a single controller IC. Consider the 250 kHz frequency for balancing component size and efficiency. Evaluate thermal performance based on the SSOP package limitations. Compare against single-channel alternatives if only one output is necessary to reduce bill of materials cost.

Part Context

This part belongs to the LTC1142 series of dual synchronous buck controllers. It shares functional similarities with the LTC1142HVCG-ADJ but differs in input voltage specifications and package variants. The LCG designation typically denotes commercial temperature range and specific packaging options within the Analog Devices portfolio.

Replacement Considerations

The LTC1142LCG-ADJ#PBF serves as a tube-packaged alternative to the TRPBF variant. Verify that the change in packaging format does not impact automated assembly processes. No direct functional substitutes are documented in the provided reference data.