ADP2387-EVALZ: 3.3V @ 6A, 4.5 ~ 20V in, Buck

Summary

The ADP2387-EVALZ evaluation board is a complete 6 A, 20 V, step-down regulator solution that allows users to evaluate the performance of the ADP2387 with a near ideal printed circuit board (PCB) layout.

The programmable current-limit function allows the inductor to be optimized by output current. The peak current-limit threshold is preset to 9 A to ensure the 6 A output current capability. The switching frequency can be programmed between 200 kHz and 1.4 MHz, which provides the possibility for a stackable multiphase power solution.

The output of the ADP2387-EVALZ evaluation board is preset to 3.3 V, and the switching frequency is set to 600 kHz. Different output voltage settings can be achieved by changing the appropriate passive components. The ambient temperature operating range is −40°C to +85°C.

Full details on the ADP2387 regulator are provided in the ADP2387 data sheet, available from Analog Devices, Inc., which should be consulted in conjunction with this user guide when working with this evaluation board.

Specifications

Manufacturer	Analog Devices Inc.
Category	AC/DC and DC/DC Conversion
Sub-Category	DC/DC SMPS - Single Output
Eval Board Part Number	ADP2387-EVALZ-ND
Eval Board Supplier	Analog Devices Inc.
Eval Board	Board not Stocked
Topology	Step Down
Outputs and Type	1 Non-Isolated
Voltage Out: Factory Set	3.3 V
Current Out	6 A
Voltage In	4.5 ~ 20 V
Efficiency @ Conditions	>93%, 12V in, 5V @ 0.6 ~ 6 A >90%, 12V in, 3.3V @ 0.5 ~ 6 A >85%, 12V in, 1.2V @ 0.8 ~ 4.6 A
Voltage Out Range	0.6 ~ 90% Vin
Features	Current Limit (Adj. or Fixed) Power Good Output Pre-Biased Startup Shutdown, Enable, Standby Soft Start
Switching Frequency	600 kHz
Standby Current [Typical]	80 µA
Quiescent Current [Typical]	2.9 mA
Component Count + Extras	24 + 14
Internal Switch	Yes
Design Author	Analog Devices
Application / Target Market	Medical Networking Point of Load (PoL) Power: Industrial Power
Standby Current [Maximum]	110 µA
Quiescent Current [Maximum]	3.6 mA
Main I.C. Base Part	ADP2387
Date Created By Author	2016-01
Date Added To Library	2016-02