EVAL-ADUM3070EBZ(#1): 5V @ 500mA, 5V in

Summary

The EVAL-ADuM3070EBZ demonstrates two separate applications for the ADuM3070 isolated switch regulator with integrated feedback. It has two independent power supply circuits: a double supply and a single supply. The switching frequency can be set from 200 kHz to 1000 kHz. The board supports a variety of I/O configurations and multiple transformer options. It is equipped with two ADuM3070 isolators.

The ADuM30701 isolator is a regulated dc-to-dc isolated power supply controller with an internal MOSFET driver. The dc-to-dc controller has an internal isolated PWM feedback from the secondary side based on the iCoupler® chip scale transformer technology and complete loop compensation. This eliminates the need to use an optocoupler for feedback and compensates the loop for stability.

Isolated PWM feedback with built in compensation
Primary side transformer driver for up to 2.5 W output power with 5 V input voltage
Soft start function at power-up
2500 V rms isolation
High common-mode transient immunity: >25 kV/μs
High temperature operation: 105°C

Specifications

Manufacturer	Analog Devices Inc.
Category	AC/DC and DC/DC Conversion
Sub-Category	DC/DC SMPS - Single Output
Eval Board Part Number	EVAL-ADUM3070EBZ-ND
Eval Board Supplier	Analog Devices Inc.
Eval Board	Normally In Stock
Topology	Step Up/Down
Outputs and Type	1 Isolated
Voltage Out: Factory Set	5 V
Current Out	500 mA
Voltage In	5 V
Efficiency @ Conditions	>80%, 5V in, 15V @ 70 ~ 110 mA >79%, 5V in, 5V @ 100 ~ 200 mA
Voltage Out Range	3.3 ~ 24 V
Features	Over Current Protection Soft Start Thermal Protection Under Voltage Protection, Brown-Out
Switching Frequency	200 kHz ~ 1 MHz 500 kHz
Standby Current [Typical]
Quiescent Current [Typical]	4 mA
Component Count + Extras
Internal Switch	Yes
Design Author	Analog Devices
Application / Target Market
Standby Current [Maximum]
Quiescent Current [Maximum]	5 mA
Main I.C. Base Part	ADuM3070
Date Created By Author	- Not Given
Date Added To Library	2013-03