LTC1772CS6#TRPBF

DC DC Switching Controllers Overview

The LTC1772CS6#TRPBF is a constant frequency current mode step-down DC/DC controller manufactured by Analog Devices Inc. It operates within an input voltage range of 2.5 V to 9.8 V and supports output voltages from 800 mV to 9.8 V. The device delivers up to 5 A of output current with a fixed switching frequency of 550 kHz. It features a low static current of 270 µA and functions reliably across an operating temperature range of -40 °C to +85 °C. The component is housed in a compact TSOT-23-6 surface-mount package.

DC DC Switching Controllers Feature Summary

• Employs a constant frequency current mode PWM architecture for high-performance regulation
• Drives external P-channel power MOSFETs to achieve low output voltage ripple
• Provides synchronous buck topology control with integrated soft-start functionality

DC DC Switching Controllers Applications

• Cell phones and portable electronics powered by Li-Ion cells
• Systems operating from three to six NiCd battery cells
• General-purpose step-down DC/DC conversion in space-constrained designs

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when sourcing. Confirm the manufacturer designation as Analog Devices Inc., formerly Linear Technology, to ensure authenticity. Check RoHS compliance status against current regulatory requirements. Validate that the TSOT-23-6 package matches your PCB footprint constraints before finalizing procurement decisions.

DC DC Switching Controllers Selection Notes

Select this controller for applications requiring a small form factor and efficient power management from single-cell or multi-cell battery sources. The 550 kHz switching frequency allows for smaller passive components compared to lower-frequency alternatives. Ensure the external P-channel MOSFET selection aligns with the 5 A current capability and thermal requirements of the target application environment.

DC DC Switching Controllers Part Context

This component belongs to the LTC1772 series of switcher controllers designed for portable electronics. It represents a solution for converting higher battery voltages down to stable logic levels. The part integrates essential control loops while relying on external power switches to handle high current loads efficiently in mobile devices.

DC DC Switching Controllers Replacement Considerations

The datasheet references the LTC1772BES6#TRPBF as a related variant within the same family. Verify pin compatibility and electrical specifications before substituting. No other direct public substitutes are confirmed in the provided documentation.