ADP1879ACPZ-0.3-R7

Overview

The ADP1879ACPZ-0.3-R7 is a synchronous buck DC-DC controller IC manufactured by Analog Devices Inc. It operates with a fixed switching frequency of 300 kHz and utilizes current mode PWM control. The device supports an output voltage as low as 600 mV and can drive loads up to 25 A. It is housed in a 14-LFCSP-WD (4x3) package with exposed pads, suitable for surface mount installation. The component functions within a temperature range of -40°C to +125°C and includes shutdown capabilities for power management efficiency.

Feature Summary

• Synchronous buck topology with integrated high-side and low-side driver outputs
• Current mode PWM control architecture for fast transient response
• Fixed 300 kHz switching frequency to optimize external component size
• Low minimum output voltage capability of 600 mV for core power applications

Applications

• Industrial equipment power distribution
• Automotive electronics systems
• Aerospace avionics power supplies

Procurement Notes

Verify the obsolete status of this part number through official Analog Devices channels before design-in. Confirm availability of equivalent or pin-compatible alternatives from authorized distributors. Ensure that the 14-LFCSP-WD package footprint matches your PCB layout requirements. Check for moisture sensitivity level compliance during storage and reflow processes. Validate that the 300 kHz frequency aligns with your electromagnetic interference constraints.

Selection Notes

Select this controller when a fixed 300 kHz frequency is required for predictable EMI filtering. Choose the LFCSP-WD package for compact designs needing thermal dissipation via exposed pads. Opt for current mode control if fast load transient response is critical. Ensure the input voltage range exceeds the maximum source voltage. Verify that the 25 A drive capability matches the external MOSFET selection.

Part Context

This component belongs to the ADP187x series of synchronous buck controllers from Analog Devices. It shares architectural similarities with parts like the ADP1870 and ADP1871 but differs in package type and specific feature sets. The series targets high-efficiency power conversion in space-constrained environments. Engineers often compare it against other 300 kHz controllers for thermal and performance benchmarks.

Replacement Considerations

• ADP1876ACPZ-R7

FAQ

What is the switching frequency of the ADP1879ACPZ-0.3-R7?

The device operates at a fixed switching frequency of 300 kHz.

Does the ADP1879ACPZ-0.3-R7 support adjustable output voltage?

Yes, it supports output voltages down to a minimum of 600 mV.

What control method does this controller use?

It uses current mode PWM control for regulation.