LTC3878IGN#PBF

DC DC Switching Controllers Overview

The LTC3878IGN#PBF is a synchronous step-down switching DC/DC controller from Analog Devices, designed for high-frequency operation and fast transient response. It operates with an input voltage range of 4 V to 38 V and delivers up to 25 A output current. The device features a fixed 2 MHz switching frequency and supports output voltages from 800 mV to 34.2 V. Key electrical specifications include a quiescent current of 18 uA and load regulation of -0.05%. It is housed in a 16-SSOP package and functions within a temperature range of -40°C to +85°C.

DC DC Switching Controllers Feature Summary

• Optimized for high switching frequency and fast transient response
• No external sense resistor required for current mode control
• Wide operating input voltage range supporting various power sources

DC DC Switching Controllers Applications

• Point-of-load regulation in industrial systems
• Telecommunications infrastructure power distribution
• Embedded computing board-level power management

DC DC Switching Controllers Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm the specific suffix #PBF indicates lead-free RoHS compliance. Check for recent Product Change Notifications (PCN) regarding manufacturing site updates. Ensure storage conditions meet moisture sensitivity level requirements prior to soldering. Validate that the 16-SSOP package dimensions match your PCB footprint design constraints.

DC DC Switching Controllers Selection Notes

Select this controller when designing buck converters requiring minimal external components and high efficiency at 2 MHz. It is suitable for applications needing rapid load transient recovery without external compensation networks. Consider the 16-SSOP package size for space-constrained layouts. Evaluate thermal performance based on the 25 A output capability and ambient operating temperatures up to 85°C.

DC DC Switching Controllers Part Context

This part belongs to the LTC3878 family of synchronous step-down controllers. It shares architectural similarities with other Analog Devices PMICs but is distinct in its no-RSENSE architecture and fixed 2 MHz frequency. The IGN#PBF designation specifies the industrial temperature grade and SSOP-16 package variant.

DC DC Switching Controllers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult Analog Devices technical support for direct replacements or pin-compatible alternatives.