LTC1709-9

PRODUCTION

2-Phase, 5-Bit VID, Current Mode, High Efficiency, Synchronous Step-Down Switching Regulators

Data Sheet
Part Models
2
1ku List Price
Starting From $5.97
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Part Details

  • Single Controller Operates Two Output Stages Antiphase Reducing Required Input Capacitance and Power Supply Induced Noise
  • Two 5-Bit Desktop VID Codes:
    • LTC1709-8 For VRM8.4 (VOUT from 1.3V to 3.5V)
    • LTC1709-9 For VRM9.0 (VOUT from 1.1V to 1.85V)
  • Current Mode Control Ensures Best Current Sharing
  • True Remote Sensing Differential Amplifier
  • Power Good Output Indicator
  • OPTI-LOOP™ Compensation Minimizes COUT
  • Programmable Fixed Frequency: 150kHz to 300kHz
  • ±1% Output Voltage Accuracy
  • Wide VIN Range: 4V to 36V Operation
  • Adjustable Soft-Start Current Ramping
  • Internal Current Foldback and Short-Circuit Shutdown
  • Overvoltage Soft Latch Eliminates Nuisance Trips
  • Low Shutdown Current: 20µA
  • Available in 36-Lead Narrow SSOP Package
LTC1709-9
2-Phase, 5-Bit VID, Current Mode, High Efficiency, Synchronous Step-Down Switching Regulators
Product Package 1 Figure 1. High Current 2-Phase Step-Down Converter
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 2

Design Note 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
Circuit Monitors 1
LTC2960
RECOMMENDED FOR NEW DESIGNS 36V Nano-Current Two-Input Voltage Monitor
Power System Managers & Sequencers 1
LTC2974
RECOMMENDED FOR NEW DESIGNS 4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement
Protection Switches & Controllers 1
LT4363
RECOMMENDED FOR NEW DESIGNS High Voltage Surge Stopper with Current Limit
Switching Regulators & Controllers 1
LTC3880
RECOMMENDED FOR NEW DESIGNS Dual Output PolyPhase Step-Down DC/DC Controller with Digital Power System Management
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Tools & Simulations

LTspice 1

Models for the following parts are available in LTspice:

  • LTC1709
  • LTC1709-7
  • LTC1709-8
  • LTC1709-85
  • LTC1709-9
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
DC292B-C

LTC1709EG-9 | High Current VRM 9.0 CPU Power Supply, 12VIN, 1.6VOUT @ 45A, (mostly Surface Mount Caps)

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Product Details

DC292B-C: Demo Board for the LTC1709-9 2-Phase, 5-Bit VID, Current Mode, High Efficiency, Synchronous Step-Down Switching Regulators.

eval board
schematic 2
DC311A

LTC1709-9EG / LTC1629CG | 4-Phase High Current Power Supply, VIN = 12V, VOUT = 1.1V~1.8V @ 60A

Buy Now View Details

Product Details

DC311A Demo Board for:
LTC1629 PolyPhase, High Efficiency, Synchronous Step-Down Switching Regulator
LTC1709-9 2-Phase, 5-Bit VID, Current Mode, High Efficiency, Synchronous Step-Down Switching Regulators
DC292B-C
LTC1709EG-9 | High Current VRM 9.0 CPU Power Supply, 12VIN, 1.6VOUT @ 45A, (mostly Surface Mount Caps)
DC292A - Schematic
DC311A
LTC1709-9EG / LTC1629CG | 4-Phase High Current Power Supply, VIN = 12V, VOUT = 1.1V~1.8V @ 60A
DC311A - Schematic

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