IC manufacturers Analog Devices

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Analog Devices LT8335

Low IQ Boost/SEPIC/ Inverting Converter with 2A, 28V Switch

Overview

TopologyPositive to Negative Converter
Input voltage5-12 V
Switching frequency1800-2200 kHz
Output 1-12 V / 0.45 A
Output 2-12 V / 0.35 A
IC revisionA

Description

The LT®8335 is a current mode DC/DC converter capableof generating either positive or negative output voltagesusing a single feedback pin. It can be configured as aboost, SEPIC or inverting converter consuming as low as6µA of quiescent current. Low ripple Burst Mode operationmaintains high efficiency down to very low outputcurrents while keeping the output ripple below 15mV ina typical application. The internally compensated currentmode architecture results in stable operation over a widerange of input and output voltages. Integrated soft-startand frequency foldback functions are included to controlinductor current during start-up. The 2MHz operationcombined with the small 8-lead DFN package, enableslow cost, area efficient solutions

Features

1) 3V-25V Input Voltage Range2)Ultrlow Quiescent Current and Low Ripple Burst Mode Operation:Iq=6uA3) 2A,28V Power Switch4) Positive or Negative Output Voltage Programming with a single feedback Pin5) Fixed 2MHz Switching Frequency6) Programmable Undervoltage Lockout (UVLO)Internal Compensation and Soft-Start7) Low Profile(0.75mm) 8-Lead(3mmx2mm) DFN Package

Typical applications

  • Industrial and Automotive
  • Medical Diagnostic Equipment
  • Telecom
  • Portable Electronics

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(µH)
IR
(A)
ISAT
(A)
RDC
(mΩ)
fres
(MHz)
Samples
74404054033SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WE-LQS SMT Power Inductor 3.3 3.4 4.3 24 48
Order Code Data­sheet Simu­lation
74404054033SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(µH)
IR
(A)
ISAT
(A)
RDC
(mΩ)
fres
(MHz)
Samples