Monolithic Power Systems EV2159A-J-00A

Description

The EV2159A-J-00A is used for demonstrating the performance of MPS’s MP2159A, a low voltage high switching frequency step-down switcher with built in power MOSFETs.MP2159A provides up to 1A highly efficient output with constant-on-time control for fast loop response. MP2159A is ideal for powering portableequipment that runs from a single cell Lithiumion (Li+) Battery. The output voltage can be regulated as lows 0.6V.High power efficiency over a wide load range is achieved by scaling down the switching frequency at light load to reduce the switchingrelated loss by constant on time control. Short circuit and thermal shutdown provides reliable, fault-tolerant operation.MP2159A is available in TSOT23-8 package.

Features

 Very Low IQ: 17μA

• Default 1.5MHz Switching Frequency
• 1.5% VFB Accuracy
• EN and Power Good for Power Sequencing
• Wide 2.5V to 6V Operating Input RangeOutput Adjustable from 0.6V
• Up to 1A Output Current
• 100% Duty Cycle in Dropout
• 120mΩ and 90mΩ Internal Power MOSFETSwitches
• Cycle-by-Cycle Over Current Protection
• Short Circuit Protect with Hiccup Mode
• Stable with Low ESR Output CeramicCapacitors
• Available in a TSOT23-8 Package

Typical applications

• Portable Instruments
• Wireless/Networking Cards
• Low Voltage I/O System Power
• Battery Powered Devices