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LINEAR TECHNOLOGY  LTC3642EMS8E-3.3#PBF  Synchronous Buck (Step Down) Switching Regulator, Fixed, 4.5V-45V In, 3.3V And 50mA Out, MSOP-8

LINEAR TECHNOLOGY LTC3642EMS8E-3.3#PBF
Manufacturer Part No:
LTC3642EMS8E-3.3#PBF
Order Code:
2102644
Technical Datasheet:
See all Technical Docs

Image is for illustrative purposes only. Please refer to product description.

Product Overview

The LTC3642EMS8E-3.3#PBF is a step-down DC/DC Converter with internal high side and synchronous power switches that draws only 12µA typical DC supply current at no load while maintaining output voltage regulation. It can supply up to 50mA load current and features a programmable peak current limit that provides a simple method for optimizing efficiency in lower current applications. The LTC3642's combination of Burst Mode® operation, integrated power switches, low quiescent current and programmable peak current limit provides high efficiency over a broad range of load currents. With its wide 4.5 to 45V input range and internal overvoltage monitor capable of protecting the part through 60V surges, it is a robust converter suited for regulating a wide variety of power sources. Additionally, it includes a precise run threshold and soft-start feature to guarantee that the power system start-up is well-controlled in any environment.
  • Internal high side and low side power switches
  • No compensation required
  • 100% Duty cycle low dropout operation
  • 12µA Low quiescent current
  • Adjustable peak current limit
  • Internal and external soft-start
  • Precise RUN Pin Threshold with Adjustable Hysteresis
  • Only three external components required for fixed output versions

Product Information

Topology:
Synchronous Buck (Step Down)
Input Voltage Min:
4.5V
Input Voltage Max:
45V
DC / DC Converter IC Case:
MSOP
No. of Pins:
8Pins
Output Current:
50mA
Output Voltage Nom.:
3.3V
Switching Frequency:
580kHz
Operating Temperature Max:
125°C
Packaging:
Cut Tape
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Power Management
  • Industrial
  • Automotive

Legislation and Environmental

Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.002