LTC7860

RECOMMENDED FOR NEW DESIGNS

High Efficiency Switching Surge Stopper

Data Sheet Product Selection Table
Part Models
8
1ku List Price
Starting From $3.54
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Part Details

  • High Efficiency VOUT Clamp Stops High Voltage Input Surges
  • SWITCH-ON Mode 100% Duty Cycle for Normal Operation
  • PROTECTIVE PWM Mode for Transients and Faults
  • VIN Pin to SGND Range: 3.5V to 60V
  • External Input Voltage is Extendable to 200V+
  • Adjustable Output Voltage Clamp
  • Adjustable Output Overcurrent Protection
  • Power Inductor Improves Input EMI in Normal Operation
  • Programmable Fault Timer
  • Adjustable Soft-Start for Input Inrush Current Limiting
  • 4.5% Retry Duty Cycle During Faults
  • Adjustable Switching Frequency: 50kHz to 850kHz
  • Optional Reverse Input Voltage Protection
  • Available in Thermally Enhanced 12-lead MSOP Package
LTC7860
High Efficiency Switching Surge Stopper
to 18V During a VIN Surge PROTECTIVE PWM: VOUT Clamped Product Package 1
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 2

Technical Articles 1

Data Sheet

This is the most up-to-date revision of the Data Sheet.

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Hardware Ecosystem

Parts Product Life Cycle Description
Surge Stopper, Overvoltage, and Overcurrent Protection 1
LT4363
RECOMMENDED FOR NEW DESIGNS High Voltage Surge Stopper with Current Limit
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Tools & Simulations

LTspice 3

Models for the following parts are available in LTspice:

  • LTC7860
LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

eval board
schematic 1
DC2239A

LTC7860EMSE Demo Board | Switching Surge Stopper, 3.5V ≤ VIN ≤ 60V; 3.5V ≤ VOUT ≤ 17.5V @ 5A

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Product Details

Demonstration circuit 2239A is a High Efficiency Switching Surge Stopper and EMI Filter featuring the LTC7860. The board operates from an input range of 3.5V to 60V, provides a 3.5V to 17.2V output at 0A to 5A and is output current limited. A soft-start feature controls output voltage slew rate at start-up, reducing current surge and voltage overshoot. The demonstration board has options for smaller MOSFET and diode packages on the back of the board for lower output current requirements.

eval board
schematic 2
schematic 3
schematic 4
schematic 5
schematic 6
schematic 7
DC2392A

LTC7860EMSE Demo Board | Switching Surge Stopper, 7V ≤ VIN ≤ 100V; 7V ≤ VOUT ≤ 35V @ 10A

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Product Details

Demonstration circuit 2392A is a high efficiency switching surge stopper featuring the LTC7860. The board operates from an input range of 7V to 100V, and provides a 7V to 34V output at 0A to 10A. Its output is current limited. A soft-start feature controls output voltage slew rate at startup, reducing current surge and voltage overshoot. The demonstration board includes an optional reverse polarity protection MOSFET and has options for an input filter and diode to attenuate spikes. For a lower output voltage limit of less than 12V, there is an optional feedback circuit.
DC2239A
LTC7860EMSE Demo Board | Switching Surge Stopper, 3.5V ≤ VIN ≤ 60V; 3.5V ≤ VOUT ≤ 17.5V @ 5A
DC2239A - Schematic
DC2392A
LTC7860EMSE Demo Board | Switching Surge Stopper, 7V ≤ VIN ≤ 100V; 7V ≤ VOUT ≤ 35V @ 10A
DC2392A Demo Board DC2392A Demo Board DC2392A Demo Board DC2392A Demo Board DC2392A Demo Board DC2392A - Schematic

Latest Discussions

22 Weeks Ago
RE: Floating the LT4363 for operation at 144Vdc
1 Years Ago
RE: MIL-STD-1275E surge stopper with input range 7-36V & output 36V.
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