DC2066A: Dual, 1V & 1.8V @ 18A, 4.5 ~ 16V in

Summary

Demonstration circuit 2066A is a dual-output, high efficiency, high density, μModule regulator with 4.5V to 16V input range. Each output can supply 18A maximum load current. The demo board has a LTM®4677 μModule regulator, which is a dual 18A or single 36A step-down regulator with digital power system management. Please see the LTM4677 data sheet for more detailed information.

DC2066A powers up to default settings and produces power based on configuration resistors without the need for any serial bus communication. This allows easy evaluation of the DC/DC converter. To fully explore the extensive power system management features of the part, download the GUI software LTpowerPlay™ onto your PC and use LTC’s I2C/SMBus/PMBus dongle DC1613A to connect to the board. LTpowerPlay allows the user to reconfigure the part on the fly and store the configuration in EEPROM, view telemetry of voltage, current, temperature and fault status.

Specifications

Manufacturer Analog Devices Inc.
Category AC/DC and DC/DC Conversion
Sub-Category DC/DC SMPS - Multi Output
Eval Board Part Number DC2066A-ND
Eval Board Supplier Analog Devices Inc.
Eval Board Normally In Stock
Topology Step Down
Outputs and Type 2 Non-Isolated
Voltage Out: Highest Current First 1V, 1.8V
Current Out 18A per Channel
Voltage In 4.5 ~ 16 V
Efficiency @ Conditions >89%, 5V in, 1.8V @ 3 ~ 18 A
>88%, 5V in, 1.5V @ 2.5 ~ 18 A
>87%, 5V in, 1.2V @ 2.5 ~ 18 A
>87%, 12V in, 1.8V @ 6 ~ 18 A
>86%, 12V in, 1.5V @ 7.2 ~ 18 A
>85%, 5V in, 1.0V @ 2.5 ~ 16.8 A
>85%, 5V in, 0.9V @ 3.2 ~ 15 A
>84%, 12V in, 1.2V @ 7 ~ 18 A
>82%, 12V in, 1.0V @ 6 ~ 18 A
>80%, 12V in, 0.9V @ 6 ~ 18 A
Voltage Out Range 0.5 ~ 1.8 V
Features Current Limit (Adj. or Fixed)
Memory Available On-Board
Over Voltage Protection
PMBus Interface
Synchronizable
Under Voltage Protection, Brown-Out
Switching Frequency 500 kHz
Standby Current [Typical] 50 µA
Quiescent Current [Typical] 20 mA
Component Count + Extras 45 + 57
Internal Switch Yes
Design Author Linear Technology
Application / Target Market Memory Back-up
Servers
Telecom
Standby Current [Maximum] - Not Given
Quiescent Current [Maximum] 40 mA
Main I.C. Base Part LTM4677
Date Created By Author 2015-07
Date Added To Library 2016-02

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Support Documents & Media

DC2066A - User Guide LTM4677 - Datasheet

Media

DC2066A_Schematic_1_Full.png DC2066A_Schematic_2_Full.png DC2066A_Board_Full.jpg DC2066A_Chart_1_Full.png DC2066A_Chart_2_Full.png DC2066A_Chart_3_Full.png DC2066A_Chart_4_Full.png