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reference designLT3816 | Demoboard DC2718

Analog Devices LT3816 | Demoboard DC2718

Single-Phase Wide VIN Range DC/DC Controller for Intel IMVP-6/IMVP-6.5 CPUs

Overview

TopologyFlyback Converter
Input voltage100-600 V
Switching frequency150-550 kHz
Output 112.6 V / 3 A

Description

The LTC3816 is a single-phase synchronous step-down DC/DC switching regulator controller that drives N-channel power MOSFETs in a constant-frequency voltage mode architecture. The controller’s leading edge modulation topology allows extremely low output voltages and supports a phase-lockable switching frequency up to 550kHz. The output voltage is programmed using a 7-bit VID code.The LTC3816 features all of the IMVP-6/IMVP-6.5 requirements, including start-up to a preset boot voltage, differential remote output voltage sensing with programmable active voltage positioning, IMON output current reporting, power optimization during sleep state, and fast or slow slew rate sleep state exit.Fault protection features include input undervoltage lockout, cycle-by-cycle current limit, output overvoltage protection, and PWRGD and overtemperature flags.

Features

  • Supports 7-Bit IMVP-6/IMVP-6.5 VID Code and Features
  • Wide VIN Range: 4.5V to 36V Operation with Optional Line Feedforward Compensation
  • tON(MIN) < 35ns, Capable of Very Low Duty Cycle
  • Temperature Compensated Inductor DCR or Sense Resistor Output Current Monitoring
  • Differential Remote Output Voltage Sensing with Programmable Active Voltage Positioning
  • Phase-Lockable Fixed Frequency: 150kHz to 550kHz
  • Programmable UVLO, Preset VOUT at Boot-Up
  • Programmable Slow Slew Rate Sleep State Exit
  • Internal LDO for Single Supply Operation
  • Overvoltage and Overcurrent Protection
  • PWRGD and VRTT# Thermal Throttling Flags
  • Power Optimization During Sleep and Light Load
  • 38-Pin Thermally Enhanced eTSSOP and 5mm × 7mm QFN Packages

Typical applications

  • Navigation Displays
  • Embedded Computing / Mobile Computers, Internet Devices

More information

Products

Order Code
Data­sheet
Downloads
Status
Product series
f(mm)
Pins
Type
Mount
L(mm)
IR(A)
Working Voltage(V (AC))
Operating Temperature
SamplesAvailability & Sample
702931000
SPECWA-SNSR Self-Retaining Spacer, 4.8 mm, –
Availability
–
Downloads3 files

CAD files ZIP

Download all 3 files as zip archive
ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWA-SNSR Self-Retaining Spacer
Drilling in Panel4.8 mm
–
–
–
Length6.4 mm
–
–
Operating Temperature -30 °C up to +85 °C
–Check availability
60800213421
SPECWR-PHD Jumper, –, 2
Availability
–
Downloads3 files

CAD files ZIP

Download all 3 files as zip archive
ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-PHD Jumper
–
Pins2 
–
–
–
Rated Current3 A
Working Voltage200 V (AC)
Operating Temperature -25 °C up to +105 °C
–Check availability
62000311121
SPECWR-PHD Pin Header, –, 3
Availability
–
Downloads7 files

EDA models: Components ZIP

CAD files ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header
–
Pins3 
TypeStraight 
MountTHT 
Length6 mm
Rated Current2 A
Working Voltage200 V (AC)
Operating Temperature -40 °C up to +105 °C
–Check availability