LTC3814-5
Info: : PRODUCTION
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LTC3814-5

60V Current Mode Synchronous Step-Up Controller

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Info: : PRODUCTION tooltip
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Part Details
Part Models 4
1ku List Price Starting From $4.19
Features
  • High Output Voltages: Up to 60V
  • Large 1Ω Gate Drivers
  • No Current Sense Resistor Required
  • Dual N-Channel MOSFET Synchronous Drive
  • ±0.5% 0.8V Voltage Reference
  • Fast Transient Response
  • Programmable Soft-Start
  • Generates 5.5V Driver Supply
  • Power Good Output Voltage Monitor
  • Adjustable Off-Time/Frequency: tOFF(MIN) < 100ns
  • Adjustable Cycle-by-Cycle Current Limit
  • Undervoltage Lockout On Driver Supply
  • Output Overvoltage Protection
  • Thermally Enhanced 16-Pin TSSOP Package
Additional Details
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The LTC3814-5 is a synchronous step-up switching regulator controller that can generate output voltages up to 60V. The LTC3814-5 uses a constant off-time peak current control architecture to deliver very high duty cycles with accurate cycle-by-cycle current limit without requiring a sense resistor.

A precise internal reference provides ±0.5% DC accuracy. A high bandwidth (25MHz) error amplifier provides very fast line and load transient response. Large 1Ω gate drivers allow the LTC3814-5 to drive large power MOSFETs for higher current applications. The operating frequency is selected by an external resistor and is compensated for variations in VIN. A shutdown pin allows the LTC3814-5 to be turned off reducing the supply current to <230μA.

Applications

  • 24V Fan Supplies
  • 48V Telecom and Base Station Power Supplies
  • Networking Equipment, Servers
  • Automotive and Industrial Control Systems
Part Models 4
1ku List Price Starting From $4.19

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Product Lifecycle

PCN

Apr 6, 2022

- 22_0068

Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL

LTC3814EFE-5#PBF

PRODUCTION

LTC3814EFE-5#TRPBF

PRODUCTION

LTC3814IFE-5#PBF

PRODUCTION

LTC3814IFE-5#TRPBF

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Part Models

Product Lifecycle

PCN

Apr 6, 2022

- 22_0068

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Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL

LTC3814EFE-5#PBF

PRODUCTION

LTC3814EFE-5#TRPBF

PRODUCTION

LTC3814IFE-5#PBF

PRODUCTION

LTC3814IFE-5#TRPBF

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

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DC1170A

LTC3814EFE-5 Demo Board | 5V < VIN < 14V, VOUT = 24V at 5A

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DC1170A

LTC3814EFE-5 Demo Board | 5V < VIN < 14V, VOUT = 24V at 5A

LTC3814EFE-5 Demo Board | 5V < VIN < 14V, VOUT = 24V at 5A

Product Detail

Demonstration circuit 1170 is a 60V current-mode synchronous step-up controller featuring the LTC3814-5. The circuit is configured as a synchronous step-up regulator operating at 330kHz switching frequency. Output voltage is 24V at 5A maximum load. The input voltage range is 5V to 14V.

Tools & Simulations

Tools & Simulations 1

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.

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