DC2001A: 24V @ 30A, 6 ~ 24V in, Boost

Summary

Demonstration circuit 2001A is a step-up DC/DC converter using two LTC3787EUFD dual-phase synchronous boost controllers in a parallel configuration for high current, high power 4-phase operation.

The DC2001A has an input supply voltage range from 6V to 24V. The converter provides an output voltage of 24V, with a very high efficiency output of 25A to 30A, as shown in Figure 2.

The LTC3787 data sheet gives a complete description of the part, operation and application information, and must be read in conjunction with this demo manual for the DC2001A.

Specifications

Manufacturer	Analog Devices Inc.
Category	AC/DC and DC/DC Conversion
Sub-Category	DC/DC SMPS - Single Output
Eval Board Part Number	505-DC2001A-ND
Eval Board Supplier	Analog Devices Inc.
Eval Board	Normally In Stock
Topology	Step Up
Outputs and Type	1 Non-Isolated
Voltage Out: Factory Set	24 V
Current Out	30 A
Voltage In	6 ~ 24 V
Efficiency @ Conditions	>97%, 18V in, 24V @ 10 ~ 30 A >96%, 9V in, 24V @ 8 ~ 30 A >96%, 12V in, 24V @ 10 ~ 30 A >94%, 6V in, 24V @ 3.8 ~ 25 A
Voltage Out Range	Up to 60 V
Features	Current Limit (Adj. or Fixed) LDO Regulator(s), On-Chip Power Good Output Shutdown, Enable, Standby Soft Start Synchronizable
Switching Frequency	350 kHz
Standby Current [Typical]	8 µA
Quiescent Current [Typical]	135 µA
Component Count + Extras	117 + 41
Internal Switch	No
Design Author	Linear Technology
Application / Target Market	Automotive Medical Military Power: Industrial Power
Standby Current [Maximum]	20 µA
Quiescent Current [Maximum]	300 µA
Main I.C. Base Part	LTC3787
Date Created By Author	2013-01
Date Added To Library	2016-10