HomedatasheetLTC1871EMS

LTC1871EMS Datasheet

PMIC - Voltage Regulators - DC DC Switching Controllers
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Description

The LTC1871EMS is a wide input range, current mode, boost,flyback and SEPIC controller that drives an N-channel power MOSFET and requires very few external components.Intended for low to medium power applications, it eliminates the need for a current sense resistor by utilizing the power MOSFET’s on-resistance, thereby maximizing efficiency. LTC1871EMS Features • High Efficiency (No Sense Resistor Required)• Wide Input Voltage Range: 2.5V to 36V• Current Mode Control Provides Excellent Transient Response• High Maximum Duty Cycle (92% Typ)• ±2% RUN Pin Threshold with 100mV Hysteresis• ±1% Internal Voltage Reference• Micropower Shutdown: IQ = 10mA• Programmable Operating Frequency (50kHz to 1MHz) with One External Resistor• Synchronizable to an External Clock Up to 1.3 ´ fOSC• User-Controlled Pulse Skip or Burst Mode® Operation• Internal 5.2V Low Dropout Voltage Regulator• Output Overvoltage Protection• Capable of Operating with a Sense Resistor for High Output Voltage Applications• Small 10-Lead MSOP Package LTC1871EMS Applications • Telecom Power Supplies• Portable Electronic Equipment
Features

Parameters

[{"Name":"Packaging","Value":"Tube"},{"Name":"PWM Type","Value":"Current Mode, Burst Mode"},{"Name":"Number of Outputs","Value":"1"},{"Name":"Frequency - Max","Value":"1MHz"},{"Name":"Duty Cycle","Value":"97%"},{"Name":"Voltage - Supply","Value":"2.5 V ~ 36 V"},{"Name":"Buck","Value":"No"},{"Name":"Boost","Value":"Yes"},{"Name":"Flyback","Value":"Yes"},{"Name":"Package / Case","Value":"10-TFSOP, 10-MSOP (0.118", 3.00mm Width)"}]

Manufacturer information

DALLAS SEMICONDUCTOR
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