Monolithic Power Systems MP201

Description

The MP201 is a dying gasp storage and release controller. It charges storage capacitor from the input during normal operation. Once the storage capacitor is charged to the selected voltage, the charge is stopped, and the storage capacitor is separated from the input. The charging circuit maintains the storage voltage after the charge is completed. The MP201 keeps monitoring the input voltage, and releases the charge from storage capacitor to input capacitor when the input voltage is lower than the selected release voltage. It regulates the input voltage to keep it close to release voltage for as long as possible. The MP201 has built-in current limit circuit during the charging up of the storage capacitors. The storage and release voltage can be programmed to user’s desired value by external resistors. The MP201 comes in an SOIC-8 package and requires a minimum number of readily available standard external components.

Features

• Wide 4.5V to 18V Input Operating Range
• • 2.5A dumping current from Storage to VIN
• • Built-in 260mA Current Limit for Charging Storage Capacitor
• • User Programmable Storage and Release Voltage
• • Dying Gasp FLAG Indicator
• • Available in SOIC-8 package

Typical applications

• Access Point Networks
• •Home Gateway
• •Cable/DSL/PON Modems

More information

• Datasheet
• IC product information