LTC1142CG#PBF

DC DC Switching Controllers Overview

The LTC1142CG#PBF is a dual high-efficiency synchronous step-down switching regulator manufactured by Analog Devices Inc. It operates within an input voltage range of 3.5 V to 20 V and provides two independent outputs, typically configured for 3.3 V and 5 V. Each channel delivers up to 700 mA of output current with a fixed switching frequency of 250 kHz. The device features a low static current of 160 uA and a typical operating supply current of 1.6 mA. Load regulation is specified at 40 mV and 60 mV for the respective channels. It functions within a temperature range of 0°C to +70°C and is housed in an SSOP-28 package.

DC DC Switching Controllers Feature Summary

• Dual-channel synchronous buck topology for efficient power conversion
• Automatic Burst Mode operation maintains high efficiency at low load currents
• Integrated current limit and enable control features

DC DC Switching Controllers Applications

• Portable battery-powered equipment requiring multiple voltage rails
• Industrial control systems needing isolated or separate logic and analog supplies
• Embedded systems utilizing microprocessors and memory components

DC DC Switching Controllers Procurement Notes

Verify component authenticity through authorized Analog Devices distributors. Confirm RoHS compliance status via official documentation. Check current availability as distribution may be limited. Ensure the SSOP-28 package matches your PCB footprint requirements. Validate thermal performance for your specific enclosure design.

DC DC Switching Controllers Selection Notes

Select this component when dual isolated outputs are required from a single input source. Consider the 250 kHz switching frequency for passive component sizing. Evaluate the 700 mA per channel limit against peak load demands. Compare static current specifications against standby power requirements. Verify compatibility with external MOSFETs if higher currents are needed.

DC DC Switching Controllers Part Context

This part belongs to the LTC1142 series of dual synchronous step-down regulators. It shares architectural similarities with other ADI PMICs but offers specific dual-output integration. The CG suffix indicates the commercial temperature grade and SSOP-28 packaging. It complements single-channel regulators like the LTC1147 for complex power architectures.

DC DC Switching Controllers Replacement Considerations

LTC1142CG#TRPBF is the tape-and-reel variant of the same electrical specification. Direct pin-compatible substitutes require verification of internal control loops and thermal characteristics. Cross-reference with LTC1142HV for extended input voltage ranges if necessary.