MAX17557EVKIT#: 5V @ 10A, 6.5 ~ 60V in

Summary

The MAX17557 5V-output evaluation kit (EV kit) provides a proven design to evaluate the MAX17557 high-voltage, high-efficiency, synchronous step-down DC-DC controller. The EV kit provides 5V/10A at the output from a 6.5V to 60V input supply. The switching frequency of the EV kit is preset to 350kHz for optimum efficiency and component size. The EV kit features Enable/UVLO Input, resistor programmable UVLO threshold, adjustable soft-start time, open-drain PGOOD output, and overcurrent and overtemperature protection.

The MAX17557 is a synchronous step-down controller that drives nMOSFETs. The device uses a constant frequency, peak-current-mode architecture. The IC supports current sensing using either an external current-sense resistor for accuracy or an inductor DCR for improved system efficiency. Current foldback limits MOSFET power dissipation under short-circuit conditions. The IC can start up monotonically into a prebiased output. The device offers discontinuous conduction mode (DCM) of operation to improve system efficiency under light loads.

Specifications

Manufacturer	Analog Devices Inc./Maxim Integrated
Category	AC/DC and DC/DC Conversion
Sub-Category	DC/DC SMPS - Single Output
Eval Board Part Number	MAX17557EVKIT#-ND
Eval Board Supplier	Analog Devices Inc./Maxim Integrated
Eval Board	Board not Stocked
Topology	Step Down
Outputs and Type	1 Non-Isolated
Voltage Out: Factory Set	5 V
Current Out	10 A
Voltage In	6.5 ~ 60 V
Efficiency @ Conditions	>90%, 6.5V in, 5V @ 0.3 ~ 10 A >85%, 12V in, 5V @ 0.2 ~ 10 A
Voltage Out Range	0.8 ~ 24 V
Features	Current Foldback Protection Current Limit (Adj. or Fixed) Light Load Mode Power Good Output Pre-Biased Startup Short Circuit Protection Shutdown, Enable, Standby Soft Start Thermal Protection Under Voltage Protection, Brown-Out
Switching Frequency	100 kHz ~ 2.2 MHz
Standby Current [Typical]	6 µA
Quiescent Current [Typical]	1.5 mA
Component Count + Extras	35 + 1
Internal Switch	No
Design Author	Maxim Integrated Products
Application / Target Market	Motor Control Point of Load (PoL) Power: Industrial Power
Standby Current [Maximum]
Quiescent Current [Maximum]
Main I.C. Base Part	MAX17557
Date Created By Author	2017-08
Date Added To Library	2018-03