LTC1629

PRODUCTION

PolyPhase, High Efficiency, Synchronous Step-Down Switching Regulator

Data Sheet Product Selection Table
Part Models
8
1ku List Price
Starting From $8.57
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Part Details

  • Dual Controller Operates from One to Twelve Phases
  • Reduces Required Input Capacitance and Power Supply Induced Noise
  • Current Mode Control Ensures Current Sharing
  • Phase-Lockable Fixed Frequency: 150kHz to 300kHz
  • 1.8MHz Effective Switching Frequency
  • True Remote Sensing Differential Amplifier
  • OPTI-LOOP™ Compensation Reduces COUT
  • ±1% Output Voltage Accuracy
  • Power Good Output Voltage Monitor (LTC1629-PG)
  • Wide VIN Range: 4V to 36V Operation
  • Very Low Dropout Operation: 99% Duty Cycle
  • Adjustable Soft-Start Current Ramping
  • Internal Current Foldback Plus Shutdown Timer
  • Overvoltage Soft-Latch Eliminates Nuisance Trips
  • Micropower Shutdown
  • Available in 28-Lead SSOP Package
LTC1629
PolyPhase, High Efficiency, Synchronous Step-Down Switching Regulator
Figure 1. High Current Dual Phase Step-Down Converter Product Package 1
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 3

Application Note 1

Design Note 4

Technical Articles 2

Data Sheet

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

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Software Resources

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Tools & Simulations

LTspice 1

Models for the following parts are available in LTspice:

  • LTC1629
  • LTC1629-6
  • LTC1629-PG
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
DC311A

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

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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

eval board
schematic 2
DC256A

LTC1629CG | 6 Phase, Very High Current, Low Voltage Power Supply, 5 to 12VIN, 3.3VOUT @ 90A or 5VOUT @ 60Amps

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Product Details

DC256A: Demo Board for the LTC1629 PolyPhase, High Efficiency, Synchronous Step-Down Switching Regulator.

eval board
schematic 3
DC226A

LTC1629CG | Polyphase DC-DC Converter, 5 to 13VIN, 3.3VOUT @ 20A

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Product Details

DC226A: Demo Board for the LTC1629 PolyPhase, High Efficiency, Synchronous Step-Down Switching Regulator.

eval board
schematic 4
DC352A

LTC1629CG LTC1628-SYNC | PolyPhase Dual Output High Current Power Supply, 5V to 14VIN, 1.6VOUT @ 52A Max., 2.5VOUT @ 15A Max (Thru-Hole Input Caps)

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Product Details

DC352A Demo Board for:
LTC1629 PolyPhase, High Efficiency, Synchronous Step-Down Switching Regulator
LTC1628-SYNC High Efficiency, 2-Phase Synchronous Step-Down Switching Regulator
DC311A
LTC1709-9EG / LTC1629CG | 4-Phase High Current Power Supply, VIN = 12V, VOUT = 1.1V~1.8V @ 60A
DC311A - Schematic
DC256A
LTC1629CG | 6 Phase, Very High Current, Low Voltage Power Supply, 5 to 12VIN, 3.3VOUT @ 90A or 5VOUT @ 60Amps
DC256A - Schematic
DC226A
LTC1629CG | Polyphase DC-DC Converter, 5 to 13VIN, 3.3VOUT @ 20A
DC226A - Schematic
DC352A
LTC1629CG LTC1628-SYNC | PolyPhase Dual Output High Current Power Supply, 5V to 14VIN, 1.6VOUT @ 52A Max., 2.5VOUT @ 15A Max (Thru-Hole Input Caps)
DC352A - Schematic

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