MP2117

MP2117

NOT RECOMMENDED FOR NEW DESIGNS

1.25MHz, 2.2A Synchronous Step-Down Switcher

ALTERNATIVE PART

NRFND Datasheet

MP2117 continues to be in production for existing customers. Please consider this alternative for new designs:

MP2161AGJ-Z

High-Efficiency, 2A, 6V, 1.5MHz, 17µA I_Q, COT Synchronous Step Down Converter with Improved V_FB Accuracy and Load Regulation in a TSOT23-8 Package

Features & Benefits

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 Range
Output Adjustable from 0.6V
Up to 2A Output Current
100% Duty Cycle in Dropout
110mΩ and 60mΩ Internal Power MOSFET Switches
Cycle-by-Cycle Over-Current Protection
Short-Circuit Protection with Hiccup Mode
Stable with Low ESR Output Ceramic Capacitors
Available in a TSOT23-8 Package

… and many more!

Description

The MP2117 is an internally compensated 2.2A synchronous step-down switcher. The operating frequency is internally set at 1.25MHz. MP2117 is ideal for powering portable equipment that runs from a single cell Lithium-Ion (Li+) Battery. The MP2117 can provide up to 2.2A continuous load current from a 2.5V to 6V input voltage. The output voltage can be regulated as low as 0.6V. 100% duty cycle provides low dropout operation that extends operating time in battery-operated systems. The MP2117 features an integrated high side switch and synchronous rectifier for high efficiency. With peak current mode control and internal compensation, the MP2117 can be stabilized with ceramic capacitors and small inductors. Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown. MP2117 is available in the small 10-pin 3mmx3mm QFN and SOIC-8 packages.