ADP2301-EVALZ: 3.3V @ 1.2A, 3 ~ 20V in

Summary

The ADP2300/ADP2301 are compact, constant-frequency, current-mode, step-down dc-to-dc regulators with an integrated power MOSFET. The ADP2300/ADP2301 evaluation boards are complete solutions that allow the user to evaluate the performance of the regulators. There are two frequency options available: the ADP2300 runs at 700 kHz, and the ADP2301 runs at 1.4 MHz. These options allow the user to make design decisions based on the trade-off between efficiency and the size of the total solution.

The ADP2300/ADP2301 provide accurate (±2%) output regulation for load currents up to 1.2A. Current-mode control provides fast and stable line and load transient performance. The precision, EN pin, threshold voltage allows the ADP2300/ADP2301 to be sequenced from other input/output supplies. The EN pin can also be used as a programmable UVLO input by using a resistive divider.

Specifications

Manufacturer	Analog Devices Inc.
Category	AC/DC and DC/DC Conversion
Sub-Category	DC/DC SMPS - Single Output
Eval Board Part Number	ADP2301-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	1.2 A
Voltage In	3 ~ 20 V
Efficiency @ Conditions	>87%, 12V in, 5V @ 0.15 ~ 1.2 A >83%, 12V in, 3.3V @ 0.25 ~ 1.2 A
Voltage Out Range	0.8 ~ 0.85 × Vin
Features	Light Load Mode Over Current Protection Shutdown, Enable, Standby Soft Start Thermal Protection Under Voltage Protection, Brown-Out
Switching Frequency	1.4 MHz
Standby Current [Typical]	18 µA
Quiescent Current [Typical]	640 µA
Component Count + Extras	10 + 5
Internal Switch	Yes
Design Author	Analog Devices
Application / Target Market	Medical Point of Load (PoL) Telecom USB Powered Devices
Standby Current [Maximum]	35 µA
Quiescent Current [Maximum]	800 µA
Main I.C. Base Part	ADP2301
Date Created By Author
Date Added To Library	2011-03