LTC3707

PRODUCTION

High Efficiency, 2-Phase Synchronous Step-Down Switching Regulator

Part Models
4
1ku List Price
Starting From $6.03
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Part Details

  • 180° Phased Dual Controllers Reduce Required Input Capacitance and Power Supply Induced Noise
  • OPTI-LOOP® Compensation Minimizes COUT
  • ±1.5% Output Voltage Accuracy over Temperature
  • Dual N-Channel MOSFET Synchronous Drive
  • Power Good Output Voltage Monitor
  • DC Programmed Fixed Frequency 150kHz to 300kHz
  • Wide VIN Range: 4.5V to 28V Operation
  • Very Low Dropout Operation: 99% Duty Cycle
  • Adjustable Soft-Start Current Ramping
  • Foldback Output Current Limiting
  • Latched Short-Circuit Shutdown with Defeat Option
  • Output Overvoltage Protection
  • Remote Output Voltage Sense
  • Low Shutdown IQ : 20µA
  • 5V and 3.3V Standby Regulators
  • Selectable Constant Frequency, Burst Mode® Operation or PWM Operation
  • Small 28-Lead Narrow SSOP Package
LTC3707
High Efficiency, 2-Phase Synchronous Step-Down Switching Regulator
Figure 1. High Efficiency Dual 5V/3.3V Step-Down Converter Product Package 1
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Documentation

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
LTC2974 RECOMMENDED FOR NEW DESIGNS 4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement
Dual-Supply Monitors 1
LTC2960 RECOMMENDED FOR NEW DESIGNS 36V Nano-Current Two-Input Voltage Monitor
Multiple Output Buck Regulators 1
LTC3880 RECOMMENDED FOR NEW DESIGNS Dual Output PolyPhase Step-Down DC/DC Controller with Digital Power System Management
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 1


Models for the following parts are available in LTspice:

  • LTC3707
  • LTC3707-SYNC
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
DC455A

LTC3707EGN | Dual Phase, 2-Output Power Supply, 7V to 21V Input, 5VOUT@ 5A and 3.3VOUT @ 5A

Product Details

DC455A: Demo Board for LTC3707 High Efficiency, 2-Phase Synchronous Step-Down Switching Regulator.

DC455A
LTC3707EGN | Dual Phase, 2-Output Power Supply, 7V to 21V Input, 5VOUT@ 5A and 3.3VOUT @ 5A
DC455A - Schematic

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