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reference designMP9115

Monolithic Power Systems MP9115

2.7-6V Input, 2.5A,1.2MHz Synchronous Step-Down Converter

Overview

TopologyBuck Converter
Input voltage2.7-6 V
Switching frequency1000-1400 kHz
Output 11.2 V / 2.5 A
IC revision0.92

Description

The MP9115 is a fully integrated, internally compensated 1.2MHz fixed frequency PWM step-down converter. It is ideal for powering portable equipment that runs from a single cell Lithium-Ion (Li+) Battery, with an input range from 2.7V to 6V. The MP9115 can provide up to 2.5A of load current with output voltage as low as 0.8V. It can also operate at 100% duty cycle for low dropout applications.With peak current mode control and internal compensation, the MP9115 is stable with ceramic capacitors and small inductors. Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown.MP9115 is available in the small 10-pin 3mmx3mm TQFN package.

Features

  • Output Adjustable from 0.8V to VIN
  • Up to 91% Efficiency
  • 100% Duty Cycle for Low DropoutApplications
  • 1μA Shutdown Current
  • 1.2MHz Fixed Switching Frequency
  • 2.7V-6V Input Operation Range
  • 3A Peak Output Current
  • Stable with Low ESR Output Ceramic Capacitors
  • Thermal Shutdown
  • Cycle-by-Cycle Over Current Protection
  • Short circuit protection
  • No reverse current of LS MOS for Pre-bias start up
  • Available in 10-pin 3x3mm TQFN

Typical applications

  • Smart Phones
  • DVD+/-RW Drives
  • Digital Cameras
  • Portable Instruments
  • PDAs

More information

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L(µH)
IRP,40K(A)
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744777002
SPECWE-PD SMT Power Inductor, 2.2 µH, 6.9 A
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-PD SMT Power Inductor
Inductance2.2 µH
Performance Rated Current6.9 A
Saturation Current6.5 A
DC Resistance20 mΩ
Self Resonant Frequency60 MHz
Size7345 
VersionStandard 
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