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LTC3835-1 Datasheet

LTC3835-1 Datasheet

Low IQ Synchronous Step-Down Controller
Part No.: LTC3835-1
Page: 28 Pages
Size: 297 KB
Manufacturer: Linear Technology
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Views: 0
Update Time: 2024-12-15 20:48:03
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LTC3835-1 Datasheet Applicable Part

Part No. Packing SPQ Marking MSL Pins Temp Range Package Description Buy
LTC3835EDHC-1#PBF Tube 73 38351 1 16 -40°C ~ 85°C 16-Lead (5mm × 3mm) Plastic DFN  
LTC3835EDHC-1#TRPBF Reel 2500 38351 1 16 -40°C ~ 85°C 16-Lead (5mm × 3mm) Plastic DFN  
LTC3835IDHC-1#PBF Tube 73 38351 1 16 -40°C ~ 85°C 16-Lead (5mm × 3mm) Plastic DFN  
LTC3835IDHC-1#TRPBF Reel 2500 38351 1 16 -40°C ~ 85°C 16-Lead (5mm × 3mm) Plastic DFN  
LTC3835EGN-1#PBF Tube 100 38351 1 16 -40°C ~ 85°C 16-Lead Plastic SSOP  
LTC3835EGN-1#TRPBF Reel 2500 38351 1 16 -40°C ~ 85°C 16-Lead Plastic SSOP  
LTC3835IGN-1#PBF Tube 100 38351 1 16 -40°C ~ 85°C 16-Lead Plastic SSOP  
LTC3835IGN-1#TRPBF Reel 2500 38351 1 16 -40°C ~ 85°C 16-Lead Plastic SSOP  
SPQ:Standard Pack Quantity;MSL:Moisture Sensitivity Level

LTC3835-1 Datasheet(PDF)

LTC3835-1 Datasheet(Picture)

LTC3835-1 Features

  • Wide Output Voltage Range: 0.8V ≤ VOUT ≤ 10V
  • Low Operating IQ: 80µA
  • OPTI-LOOP® Compensation Minimizes COUT
  • ±1% Output Voltage Accuracy
  • Wide VIN Range: 4V to 36V Operation
  • Phase-Lockable Fixed Frequency 140kHz to 650kHz
  • Dual N-Channel MOSFET Synchronous Drive
  • Very Low Dropout Operation: 99% Duty Cycle
  • Adjustable Output Voltage Soft-Start or Tracking
  • Output Current Foldback Limiting
  • Output Overvoltage Protection
  • Low Shutdown IQ: 10µA
  • Selectable Continuous, Pulse-Skipping or Burst Mode® Operation at Light Loads
  • Small 16-Lead Narrow SSOP or 3mm × 5mm DFN Package

LTC3835-1 Applications

  • Automotive Systems
  • Telecom Systems
  • Battery-Operated Digital Devices
  • Distributed DC Power Systems

LTC3835-1 Description

The LTC3835-1 is a high performance step-down switching regulator controller that drives an all N-channel synchronous power MOSFET stage. A constant-frequency current mode architecture allows a phase-lockable frequency of up to 650kHz.

The 80µA no-load quiescent current extends operating life in battery powered systems. OPTI-LOOP compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. The LTC3835-1 features a precision 0.8V reference and a power good output indicator. The 4V to 36V input supply range encompasses a wide range of battery chemistries.

The TRACK/SS pin ramps the output voltage during startup. Current foldback limits MOSFET heat dissipation during short-circuit conditions.

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