LM3100

Features: Input voltage range 4.5V - 36V1.5A output current0.8V, ±1.5% referenceIntegrated 40V, dual N-Channel buck synchronous switchesLow component count and small solution sizeNo loop compensation requiredUltra-fast transient responseStable with ceramic and other low ESR capacitorsProgrammable ...

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LM3100 Picture
SeekIC No. : 004395193 Detail

LM3100: Features: Input voltage range 4.5V - 36V1.5A output current0.8V, ±1.5% referenceIntegrated 40V, dual N-Channel buck synchronous switchesLow component count and small solution sizeNo loop compensatio...

floor Price/Ceiling Price

Part Number:
LM3100
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2021/7/24

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Product Details

Description



Features:

 Input voltage range 4.5V - 36V
 1.5A output current
 0.8V, ±1.5% reference
 Integrated 40V, 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 1MHz
 Max. duty cycle limited during start-up
 Valley current limit
 Precision Internal Reference for adjustable output voltage down to 0.8V
 Thermal shutdown
 Thermally enhanced eTSSOP-20 package



Application

 5VDC, 12VDC, 24VDC, 12VAC, and 24VAC systems
 Embedded Systems
 Industrial Controls
 Automotive Telematics and Body Electronics
 Point of Load Regulators
 Storage Systems
 Broadband Infrastructure
 Direct Conversion from 2/3/4 Cell Lithium Batteries Systems



Pinout

  Connection Diagram


Specifications

VIN, RON to GND ......................................-0.3V to 40V
SW to GND ...............................................-0.3V to 40V
SW to GND (Transient) ..........................-2V (< 100ns)
VIN to SW ................................................-0.3V to 40V
BST to SW ..................................................-0.3V to 7V
All Other Inputs to GND.............................. -0.3V to 7V
ESD Rating (Note 2) Human Body Model ..............±2kV
Storage Temperature Range............. -65°C to +150°C
Junction Temperature (TJ).................................. 150°C




Description

The LM3100 Synchronously Rectified Buck Converter features all functions needed to implement a highly efficient, cost effective buck regulator capable of supplying 1.5A to loads with voltages as low as 0.8V. Dual 40V 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 oprating frequency can be externally programmed up to 1MHz. Protection features include VCC under-voltage lockout, thermal shutdown and gate drive under-voltage lockout. The part is available in a thermally enhanced eTSSOP-20 package




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