MP2116

NOT RECOMMENDED FOR NEW DESIGNS

2A, 6V, 100% Duty Cycle Synchronous, Step-Down Converter with 0.5A LDO

ALTERNATIVE PART

NRFND Datasheet

MP2116 continues to be in production for existing customers. Please consider this alternative for new designs:

MP2182GTL-Z

2A Synchronous Step-Down Converter with SS & PG

Features & Benefits

Low I_Q: 21μA
1.2MHz Switching Frequency
EN forPowerSequencing
1% FB Accuracy
Wide 2.5V-to-5.5V Operating Input Range
Output Adjustable from 0.6V
Up to 2A Output Current
80mΩ and 40mΩ Internal Power MOSFET Switches
100% Duty On
Output Discharge
Vo OVP
External Soft Start Control
Short-Circuit Protection with Hiccup Mode
Power Good
Available in a SOT583 Package

… and many more!

Description

The MP2116 is an internally compensated 1.25MHz, 2A synchronous step-down switching DC-DC converter plus a standalone low-input voltage, 0.5A low dropout (LDO) linear regulator. It is ideal for powering portable equipment that operates from a single cell Lithium-Ion (Li+) Battery. The MP2116 can provide up to 2A to the switcher output, and 0.5A load current to the LDO output from a 2.5V to 6V input voltage. Both output voltages can be regulated as low as 0.6V. The 2A Synchronous switcher features integrated high side and low-side switch for high efficiency and small footprint. With peak current mode control and internal compensation, the MP2116 is stable with ceramic capacitors. Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown. The standalone low-input voltage 0.5A LDO is used to power noise sensitive circuitry. The LDO?s separate input supply pin (IN2) can be connected to the switcher output to reduce power dissipation and noise from the main switcher. MP2116 is available in the small 10-pin 3x3mm QFN package.