LTC3835IGN-1#PBF

DC DC Switching Controllers Overview

The LTC3835IGN-1#PBF is a high-performance synchronous step-down switching regulator controller from Analog Devices. It operates with an input voltage range of 4V to 36V and supports output voltages from 800mV to 10V. The device drives all N-channel synchronous power MOSFETs using a constant-frequency current mode architecture, allowing for a phase-lockable switching frequency up to 800kHz. It features a low quiescent current of 80µA and functions within an operating temperature range of -40°C to +85°C. Packaged in a 16-pin SSOP.

DC DC Switching Controllers Feature Summary

• Drives all N-channel synchronous power MOSFET stage for high efficiency
• Constant-frequency current mode architecture with phase-lock capability
• Low quiescent current operation for improved light-load efficiency

DC DC Switching Controllers Applications

• Point-of-load regulation for industrial equipment
• Telecommunications infrastructure power distribution
• Embedded systems requiring isolated or non-isolated DC-DC conversion

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and tube packaging when sourcing. Confirm the component status as limited supply or obsolete through official manufacturer channels prior to design finalization. Ensure the SSOP-16 package footprint matches the target PCB layout constraints. Cross-reference the datasheet revision date to ensure compatibility with latest thermal and electrical specifications.

DC DC Switching Controllers Selection Notes

Select this controller when designing buck converters requiring external N-channel MOSFETs for higher current handling than integrated solutions. The phase-lockable frequency feature allows synchronization with other system clocks to minimize EMI. Verify that the required output voltage falls within the 800mV to 10V adjustable range. Consider the 800kHz maximum frequency for balancing component size against transient response requirements.

DC DC Switching Controllers Part Context

This part belongs to the LTC3835 family of low IQ synchronous step-down controllers. The IGN-1 designation typically refers to the industrial temperature grade variant. The #PBF suffix denotes a lead-free finish and tube packaging format, distinguishing it from tape-and-reel options like #TR. It serves as a core power management IC for versatile DC-DC converter designs.

DC DC Switching Controllers Replacement Considerations

Publicly confirmed direct substitutes are not available in the provided documentation. Designers should consult Analog Devices for current alternative components if this part is discontinued or subject to limited supply constraints.