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LM3100MH

Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 1.5A 20-PowerTSSOP (0.173", 4.40mm Width)

LM3100MH General Description

The LM3100 Synchronously Rectified Buck Converter features all functions needed to implement a highly efficient, cost effective buck regulator capable of supplying 1.5 A to loads with voltages as low as 0.8 V. Dual 40 V N-Channel synchronous MOSFET switches allow for low external component thus reducing complexity and minimizing board space. The LM3100 is designed to work exceptionally well with ceramic and other very low ESR output capacitors. The Constant ON-Time (COT) regulation scheme requires no loop compensation, results in fast load transient response, and simplifies circuit implementation. Through the use of a unique design the regulator does not rely on output capacitor ESR for stability, as do most other COT regulators. The operating frequency remains nearly constant with line and load variations due to the inverse relationship between the input voltage and the on-time. The operating frequency can be externally programmed up to 1 MHz. Protection features include VCC under-voltage lockout, thermal shutdown and gate drive under-voltage lockout. The part is available in a thermally enhanced HTSSOP-20 package

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Key Features

  • Input Voltage Range 4.5 V to 36 V
  • 1.5 A Output Current
  • 0.8 V, ±1.5% Reference
  • Integrated 40 V, Dual N-Channel Buck Synchronous Switches
  • Low Component Count and Small Solution Size
  • No Loop Compensation Required
  • Ultra-Fast Transient Response
  • Stable With Ceramic and Other Low ESR Capacitors
  • Programmable Switching Frequency up to 1 MHz
  • Max. Duty Cycle Limited During Start-Up
  • Valley Current Limit
  • Precision Internal Reference for Adjustable Output Voltage Down to 0.8 V
  • Thermal Shutdown
  • Thermally Enhanced HTSSOP-20 Package
Texas Instruments, IncMicrosoft.AspNetCore.Mvc.Localization.LocalizedHtmlString
Texas Instruments, IncMicrosoft.AspNetCore.Mvc.Localization.LocalizedHtmlString

Specifications

Category Integrated Circuits (ICs)Power Management (PMIC)Voltage Regulators - DC DC Switching Regulators Series SIMPLE SWITCHER®
Function Step-Down Output Configuration Positive
Topology Buck Output Type Adjustable
Number of Outputs 1 Voltage - Input (Min) 4.5V
Voltage - Input (Max) 36V Voltage - Output (Min/Fixed) 0.8V
Voltage - Output (Max) 7.2V Current - Output 1.5A
Frequency - Switching Up to 1MHz Synchronous Rectifier Yes
Operating Temperature -40°C ~ 125°C (TJ) Mounting Type Surface Mount
Base Product Number LM3100

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C
C**n 10/04/2020

Shipping month seller well done

9
D
D**n 10/01/2020

good item, good packing, all as they mention, happy

2
S
S**n 05/22/2020

Avaq's excellent delivery speed was remarkable. Despite ordering during a busy period, the SI53254A-D02AM components arrived swiftly. Kudos to their efficient logistics and commitment to customer satisfaction!

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