LTC3371

RECOMMENDED FOR NEW DESIGNS

4-Channel 8A Configurable Buck DC/DCs with Watchdog and Power-On Reset

Data Sheet Product Selection Table
Part Models
12
1ku List Price
Starting From $4.95
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Part Details

  • 8 × 1A Buck Power Stages Configurable as 2, 3 or 4 Output Channels
  • 8 Unique Output Configurations (1A to 4A Per Channel)
  • Independent VIN Supplies for Each DC/DC (2.25V to 5.5V)
  • Low Total No Load Supply Current:
    • 15μA In Shutdown (All Channels Off)
    • 68μA One Channel Active in Burst Mode® Operation
    • 18μA Per Additional Channel
  • Precision Enable Pin Thresholds for Autonomous Sequencing
  • 1MHz to 3MHz RT Programmable Frequency (2MHz Default) or PLL Synchronization
  • Temp Monitor Indicates Die Temperature
  • CT Programmed Watchdog Timer
  • Independent RST Pins Indicate Buck in Regulation
  • Thermally Enhanced 38-Lead 5mm × 7mm QFN and TSSOP Packages
LTC3371
4-Channel 8A Configurable Buck DC/DCs with Watchdog and Power-On Reset
Buck Efficiency vs ILOAD Product Package 1 Product Package 2
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

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
Digital Power System Managers 1
LTC2975
RECOMMENDED FOR NEW DESIGNS 4-Channel PMBus Power System Manager Featuring Accurate Input Current and Energy Measurement
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Tools & Simulations

LTspice 1

Models for the following parts are available in LTspice:

  • LTC3371
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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
DC2182A

LTC3371EFE Demo Board | 4-Ch 8A Configurable Bucks with Watchdog/Power-On Reset, 2.25V ≤ VIN ≤ 5.5V, VOUT1-4 = 1.2V, 1.8V, 2.5V, 3.3V@2A Each

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Product Details

Demonstration circuit 2182A is a 4-output power supply with a watchdog timer and power-on reset featuring the LTC3371. The LTC3371 has four synchronous current mode buck regulators which can be configured to share eight individual 1A power stages to create one of eight combinations of 1A, 2A, 3A and 4A regulators. The DC2182A is set up as four 2A buck regulators but can be modified to one of the other seven configurations. Its input voltage range is 2.25V to 5.5V.

DC2182A
LTC3371EFE Demo Board | 4-Ch 8A Configurable Bucks with Watchdog/Power-On Reset, 2.25V ≤ VIN ≤ 5.5V, VOUT1-4 = 1.2V, 1.8V, 2.5V, 3.3V@2A Each
DC2182A - Schematic

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