IC reference design search
IC manufacturers Analog Devices

IC manufacturers (103)

reference designLT8335

Analog Devices LT8335

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

Overview

TopologySEPIC Buck-Boost Topology
Input voltage4-16 V
Switching frequency1800-2200 kHz
Output 15 V / 0.65 A
Output 25 V / 0.55 A
Output 35 V / 0.7 A
Output 45 V / 0.5 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

More information

Products

Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L1(µH)
L2(µH)
IR(A)
IR 2(A)
ISAT(A)
RDC1 typ(Ω)
RDC2 typ(Ω)
RDC1 max(Ω)
RDC2 max(Ω)
fres(MHz)
Type
Samples
744877001
WE-DD SMT Shielded Coupled Inductor, 1.8 µH, 1.8 µH
Simu­lation
Downloads10 files

EDA models: Components ZIP

CAD files ZIP

Electric models ZIP

Download all 10 files as zip archive
ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-DD SMT Shielded Coupled Inductor
Inductance 11.8 µH
Inductance 21.8 µH
Rated Current4.7 A
Rated Current 24.7 A
Saturation Current6.5 A
DC Resistance 10.025 Ω
DC Resistance 20.025 Ω
DC Resistance 10.034 Ω
DC Resistance 20.034 Ω
Self Resonant Frequency58 MHz
TypeStraight