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LINEAR TECHNOLOGY  LTC3642EDD#PBF  DC-DC Switching Buck Step Down Regulator, Adjustable, 4.5V-45Vin, 800mV-45Vout, 50mAout, DFN-8

LINEAR TECHNOLOGY LTC3642EDD#PBF
Manufacturer Part No:
LTC3642EDD#PBF
Order Code:
2295114
Technical Datasheet:
See all Technical Docs

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Product Overview

The LTC3642EDD#PBF is a high-efficiency high-voltage step-down DC-to-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. The LTC3642 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, the LTC3642 is a robust converter suited for regulating a wide variety of power sources. Additionally, the LTC3642 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
  • Low dropout operation - 100% duty cycle
  • 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
  • 0.8V Feedback voltage reference
  • 3.3V, 5V and adjustable Output versions

Product Information

Topology:
Synchronous Buck (Step Down)
Input Voltage Min:
4.5V
Input Voltage Max:
45V
No. of Outputs:
1Outputs
DC / DC Converter IC Case:
DFN
No. of Pins:
8Pins
Output Current:
50mA
Output Voltage Min:
800mV
Output Voltage Max:
45V
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

  • Industrial
  • Power Management
  • Portable Devices
  • 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):
.000012

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