ADP2302-EVALZ: 3.3V @ 2A, 3 ~ 20V in

Summary

The ADP2302/ADP2303 are 2 A/3 A, 20 V, nonsynchronous step-down, dc-to-dc regulators with an integrated power MOSFET in a SOIC package with an exposed paddle. The ADP2302/ ADP2303 evaluation boards are complete buck regulator solutions that allow users to evaluate the performance of the regulators.

The ADP2302/ADP2303 integrated soft-start circuitry prevents inrush current at power-up. The power-good output indicates that the output voltage is regulated within tolerance, and it can be used to sequence devices that have an enable input. The precision enable feature allows the part to be easily sequenced from external supplies. Other key features include undervoltage lockout (UVLO), output overvoltage protection (OVP), thermal shutdown (TSD), and overcurrent protection (OCP). Full details on the ADP2302/ADP2303 are provided in the ADP2302/ADP2303 data sheet available from Analog Devices, Inc., which should be consulted in conjunction with this user guide.

Specifications

Manufacturer	Analog Devices Inc.
Category	AC/DC and DC/DC Conversion
Sub-Category	DC/DC SMPS - Single Output
Eval Board Part Number	ADP2302-EVALZ-ND
Eval Board Supplier	Analog Devices Inc.
Eval Board	Normally In Stock
Topology	Step Down
Outputs and Type	1 Non-Isolated
Voltage Out: Factory Set	3.3 V
Current Out	2 A
Voltage In	3 ~ 20 V
Efficiency @ Conditions	>91%, 12V in, 5V @ 0.5 ~ 2 A >86%, 12V in, 3.3V @ 0.6 ~ 2 A >82%, 12V in, 2.5V @ 0.5 ~ 2 A >77%, 12V in, 1.8V @ 0.5 ~ 2 A >73%, 12V in, 1.5V @ 0.4 ~ 2 A
Voltage Out Range	0.8 ~ Vin (-2.1V)
Features	Light Load Mode Over Current Protection Over Voltage Protection Power Good Output Shutdown, Enable, Standby Soft Start Thermal Protection Under Voltage Protection, Brown-Out
Switching Frequency	700 kHz
Standby Current [Typical]	24 µA
Quiescent Current [Typical]	720 µA
Component Count + Extras	12 + 8
Internal Switch	Yes
Design Author	Analog Devices
Application / Target Market	Medical Point of Load (PoL) Power: Industrial Power Set-Top Boxes Telecom
Standby Current [Maximum]	45 µA
Quiescent Current [Maximum]	950 µA
Main I.C. Base Part	ADP2302
Date Created By Author
Date Added To Library	2013-07