IC manufacturers Analog Devices

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Analog Devices LT8618-3.3

High Efficiency 65V/100mA Synchronous Buck

Overview

TopologyBuck Converter
Input voltage23-60 V
Switching frequency200-2200 kHz
Output 112 V / 0.1 A

Description

The LT®8618 is a compact, high speed synchronous monolithic step-down switching regulator that delivers up to 100mA with high efficiency at constant switching frequency, even up to 2.2MHz. It accepts a wide input voltage range up to 65V (transients only, 60V for continuous operation), and consumes only 2.5μA of quiescent current.

Features

  • High Efficiency Synchronous Operation
  • 90% Efficiency at 30mA, 12VIN to 3.3VOUT

  • Ultralow Quiescent Current Burst Mode® Operation
  • < 2.5μA IQ Regulating 48VIN to 3.3VOUT
  • Output Ripple < 10mVP-P
  • 3.4V to 60V Input Operation Range (65V Max)
  • Fast Minimum Switch-On Time: 35ns
  • Adjustable Switching Frequency: 200kHz to 2.2MHz
  • Fixed 3.3V Output Voltage Version

Typical applications

  • Industrial Sensors, Industrial Internet of Things, Flow Meters
  • 4mA to 20mA Current Loops, Automotive Housekeeping Supplies

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(µH)
IR
(A)
ISAT
(A)
RDC
(mΩ)
fres
(MHz)
Samples
74404042221SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WE-LQS SMT Power Inductor 220 0.25 0.39 3450 5.3
Order Code Data­sheet Simu­lation
74404042221SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(µH)
IR
(A)
ISAT
(A)
RDC
(mΩ)
fres
(MHz)
Samples