IC reference design search
IC manufacturers Analog Devices

IC manufacturers (104)

reference designLT8619 | Demoboard DC2137A

Analog Devices LT8619 | Demoboard DC2137A

60V, 1.2A Synchronous Monolithic Buck Regulator with 6μA Quiescent Current

Overview

TopologyBuck Converter
Input voltage3-60 V
Switching frequency300-2200 kHz
Output 15 V / 1.2 A

Description

Demonstration circuit 2137A is a monolithic step-down DC/DC switching regulator featuring the LT®8619. The LT8619 is a high efficiency, high speed synchronous monolithic step-down switching regulator that con¬sumes only 6μA of quiescent current. The demo circuit is designed for 5V, 1.2A output from 6V to 48V input with the transient input voltage up to 60V. The wide input range makes it suitable for regulating power from a wide variety of sources, including automotive, industrial systems and telecom supplies. The power switch, compensation and other necessary circuits are inside of the LT8619 to mini¬mize external components and simplify design.

Features

  • Wide Input Voltage Range: 3V to 60V
  • Fast Minimum Switch-On Time: 30ns
  • Ultralow Quiescent Current Burst Mode Operation:
    • 6μA IQ Regulating 12VIN to 3.3VOUT
    • 10mVP-P Output Ripple at No Load
  • Synchronizable/Programmable Fixed Frequency Forced Continuous Mode Operation: 300kHz to 2.2MHz
  • High Efficiency Synchronous Operation:
    • 92% Efficiency at 0.5A, 5VOUT from 12VIN
    • 90% Efficiency at 0.5A, 3.3VOUT from 12VIN
  • Low Dropout: 360mV at 0.5A
  • Low EMI
  • Accurate 1V Enable Pin Threshold
  • Internal Soft-Start and Compensation
  • Power Good Flag
  • Small Thermally Enhanced 16-Lead MSOP Package and 10-Lead (3mm × 3mm) DFN Packages

Typical applications

  • 12V Automotive Systems / 12V and 24V Commercial Vehicles / 48V Electric and Hybrid Vehicles
  • Industrial Supplies

More information

Products

Log in now to view availability and request availability forecasts. LOGIN
Order Code
Data­sheet
Downloads
Status
Product series
Pins
Type
Mount
L(mm)
IR(A)
Working Voltage(V (AC))
Operating Temperature
SamplesAvailability & Sample
Log in now to view availability and request availability forecasts. LOGIN
60800213421
SPECWR-PHD Jumper, 2, –
Availability
–
Downloads3 files

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
62000821121
SPECWR-PHD Pin Header, 8, Straight
Availability
–
Downloads7 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header
Pins8 
TypeStraight 
MountTHT 
Length8 mm
Rated Current2 A
Working Voltage200 V (AC)
Operating Temperature -40 °C up to +105 °C
–Check availability