IC manufacturers Analog Devices

IC manufacturers (96)

Analog Devices LTC7800

Low IQ, 60V, High Frequency Synchronous Step-Down Controller

Overview

TopologyBuck Converter
Input voltage12.5-28 V
Switching frequency320-2250 kHz
Output 112 V / 10 A

Description

The LTC®7800 is a high performance step-down switchingregulator DC/DC controller that drives an all N-channelsynchronous power MOSFET stage. A constant frequencycurrent mode architecture allows a phase-lockablefrequency of up to 2.25MHz.

Features

Wide VIN Range: 4V to 60V (65V Abs Max)n Low Operating IQ: 50μAn Wide Output Voltage Range: 0.8V ≤ VOUT ≤ 24Vn RSENSE or DCR Current Sensingn Phase-Lockable Frequency (320kHz to 2.25MHz)n Programmable Fixed Frequency (320kHz to2.25MHz)n Selectable Continuous, Pulse-Skipping or Low RippleBurst Mode® Operation at Light Loadn Selectable Current Limitn Very Low Dropout Operation: 98% Duty Cyclen Adjustable Output Voltage Soft-Start or Trackingn Power Good Output Voltage Monitorn Output Overvoltage Protectionn Low Shutdown IQ: < 14μAn Internal LDO Powers Gate Drive from VIN or EXTVCCn No Current Foldback During Start-Upn Small 20-Pin 3mm × 4mm QFN Package

Typical applications

  • Automotive Always-On Systems
  • Battery Powered Digital Devices,Distributed DC Power Systems

Products

Order Code Data­sheet Simu­lation Downloads Product seriesL
(µH)
IRP,40K
(A)
ISAT,10%
(A)
ISAT,30%
(A)
RDC
(mΩ)
fres
(MHz)
Material Samples
744314047SPEC
8 files WE-HCI SMT Flat Wire High Current Inductor 0.47 31.9 9 20 1.35 235 Superflux
Order Code Data­sheet Simu­lation
744314047SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Product seriesL
(µH)
IRP,40K
(A)
ISAT,10%
(A)
ISAT,30%
(A)
RDC
(mΩ)
fres
(MHz)
Material Samples