MAXREFDES8#: 12V @ 165mA Isolated, 3.3V in

Summary

The Riverside design (MAXREFDES8#) uses an H-bridge transformer driver (MAX256) and a low dropout (LDO) linear regulator (MAX1659) to create a 12V (15V) output isolated power supply from a 3.3V voltage input. This general-purpose power solution can be used in many different types of isolated power applications, but is mainly targeted for industrial sensors, industrial automation, process control, and medical applications.

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 MAXREFDES8#-ND
Eval Board Supplier Analog Devices Inc./Maxim Integrated
Eval Board Normally In Stock
Topology Step Up
Outputs and Type 1 Isolated
Voltage Out: Factory Set 12 V
Current Out 165 mA
Voltage In 3.3 V
Efficiency @ Conditions >65%, 3.3V in, 12V @ 30 ~ 165 mA
Voltage Out Range 1.25 ~ 16 V
Features Current Limit (Adj. or Fixed)
Reverse Polarity Protection
Short Circuit Protection
Shutdown, Enable, Standby
Thermal Protection
Switching Frequency 1 MHz
Standby Current [Typical] 100 nA
Quiescent Current [Typical] 30 µA
Component Count + Extras 16 + 3
Internal Switch Yes
Design Author Maxim Integrated Products
Application / Target Market Factory Automation
Medical
Point of Load (PoL)
Smart Building Controls
Standby Current [Maximum] 1 µA
Quiescent Current [Maximum] 60 µA
Main I.C. Base Part MAX1659
MAX256
Date Created By Author 2013-03
Date Added To Library 2014-01

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Support Documents & Media

MAXREFDES8# - APP5512 - User Guide MAX256 - Datasheet MAX1659 - Datasheet

Media

MAXREFDES8#_Schematic_Full.png MAXREFDES8#_Board_Full.jpg MAXREFDES8#_Chart_1_Full.png MAXREFDES8#_Chart_2_Full.png