IC manufacturers Analog Devices

IC manufacturers (99)

Analog Devices LTC7103-1

105V, 2.3A Low EMI Synchronous Step-Down Regulator with Fast Current Programming

Overview

TopologyBuck Converter
Input voltage4.4-105 V
Switching frequency200-2000 kHz
Output 12.3 A

Description

The LTC7103-1 is a high efficiency, monolithic synchro-nous step-down DC/DC converter utilizing a constant frequency, average current mode control architecture. It operates from an input voltage range of 4.4V to 105V and provides an adjustable regulated output voltage from 1V to VIN while delivering up to 2.3A of output current.

Features

  • Wide VIN Range: 4.4V to 105V (110V Abs Max)
  • Ultralow EMI/EMC Emissions: CISPR 25 Compliant
  • 2μA IQ When Regulating 48VIN to 3.3VOUT
  • Fast and Accurate Output Current Programming and Monitoring with No External RSENSE
  • Brick Wall Current Limit
  • Low Minimum On-Time: 40ns
  • Wide VOUT Range: 1V to VIN
  • PassThru™/100% Duty Cycle Capable
  • Programmable Fixed Frequency: 200kHz to 2MHz
  • Eight, Pin-Selectable Fixed (1.2V to 15V) or Adjustable Output Voltages
  • Selectable Continuous, Pulse-Skipping, or Low Ripple Burst Mode® Operation at Light Loads
  • PLL Synchronization to External Clock
  • EXTVCC LDO Powers Chip from VOUT = 3.3V to 40V
  • OPTI-LOOP® or Fixed Internal Compensation
  • Input and Output Overvoltage Protection
  • Thermally Enhanced (5mm × 6mm) QFN Package
  • AEC-Q100 Qualification in Process

Typical applications

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(µH)
IRP,40K
(A)
ISAT
(A)
RDC max.
(mΩ)
fres
(MHz)
SizeVersionISAT,10%
(A)
ISAT,30%
(A)
RDC
(mΩ)
Material Samples
744771112SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WE-PD SMT Power Inductor 12 7.4 4.9 26 19.7 1260 Standard 4.9 6.4
7443551181SPEC

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

8 files Active i| Production is active. Expected lifetime: >10 years.WE-HCI SMT Flat Wire High Current Inductor 18 7.4 24200 16 1365 SMT 3.5 7.5 22 WE-PERM
7447715330SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WE-PD SMT Power Inductor 33 3.65 2.5 85 13 1245 Standard 2.5 3
7447709470SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WE-PD SMT Power Inductor 47 4.9 60 6.5 1210 Standard 4.5 5.5
Order Code Data­sheet Simu­lation
744771112SPEC
7443551181SPEC

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

7447715330SPEC
7447709470SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(µH)
IRP,40K
(A)
ISAT
(A)
RDC max.
(mΩ)
fres
(MHz)
SizeVersionISAT,10%
(A)
ISAT,30%
(A)
RDC
(mΩ)
Material Samples