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LT8604 Datasheet

LT8604 Datasheet

High Efficiency 42V/120mA Synchronous Bucks
Part No.: LT8604
Page: 28 Pages
Size: 4801 KB
Manufacturer: Linear Technology
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Views: 1
Update Time: 2023-11-13 10:11:57
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LT8604 Datasheet Applicable Part

Part No. Packing SPQ Marking MSL Pins Temp Range Package Description Buy
LT8604EDDBM#TRPBF Reel 2500 LHNB 1 10 -40°C ~ 125°C 10-Lead (3mm × 2mm) Plastic Side-WettableDFN Package  
LT8604EDDBM#TRMPBF Reel 500 LHNB 1 10 -40°C ~ 125°C 10-Lead (3mm × 2mm) Plastic Side-WettableDFN Package  
LT8604IDDBM#TRPBF Reel 2500 LHNB 1 10 -40°C ~ 125°C 10-Lead (3mm × 2mm) Plastic Side-WettableDFN Package  
LT8604IDDBM#TRMPBF Reel 500 LHNB 1 10 -40°C ~ 125°C 10-Lead (3mm × 2mm) Plastic Side-WettableDFN Package  
LT8604JDDBM#TRPBF Reel 2500 LHNB 1 10 -40°C ~ 125°C 10-Lead (3mm × 2mm) Plastic Side-WettableDFN Package  
LT8604JDDBM#TRMPBF Reel 500 LHNB 1 10 -40°C ~ 125°C 10-Lead (3mm × 2mm) Plastic Side-WettableDFN Package  
LT8604EDDBM#WTRPBF Reel 2500 LHNB 1 10 -40°C ~ 125°C 10-Lead (3mm × 2mm) Plastic Side-WettableDFN Package  
LT8604EDDBM#WTRMPBF Reel 500 LHNB 1 10 -40°C ~ 125°C 10-Lead (3mm × 2mm) Plastic Side-WettableDFN Package  
LT8604IDDBM#WTRPBF Reel 2500 LHNB 1 10 -40°C ~ 125°C 10-Lead (3mm × 2mm) Plastic Side-WettableDFN Package  
LT8604IDDBM#WTRMPBF Reel 500 LHNB 1 10 -40°C ~ 125°C 10-Lead (3mm × 2mm) Plastic Side-WettableDFN Package  
LT8604JDDBM#WTRPBF Reel 2500 LHNB 1 10 -40°C ~ 125°C 10-Lead (3mm × 2mm) Plastic Side-WettableDFN Package  
LT8604JDDBM#WTRMPBF Reel 500 LHNB 1 10 -40°C ~ 125°C 10-Lead (3mm × 2mm) Plastic Side-WettableDFN Package  
SPQ:Standard Pack Quantity;MSL:Moisture Sensitivity Level

LT8604 Datasheet(PDF)

LT8604 Datasheet(Picture)

LT8604 Features

  • High Efficiency 2MHz Synchronous Operation
    • > 90% Efficiency at 50mA, 12VIN to 5VOUT
  • Ultralow Quiescent Current Burst Mode Operation
    • < 2.5μA IQ Regulating 24VIN to 3.3VOUT
    • Output Ripple < 10mVP-P
  • Wide Input Voltage Range: 3.2V to 42V
  • Fast Minimum Switch-On Time: 35ns
  • Adjustable (All) Switching Frequency: 200kHz to 2.2MHz
  • Internal Compensation
  • Output Soft-Start and Tracking
  • Small 10-Lead 3mm × 2mm Side-Wettable DFN Package
  • AEC-Q100 Qualified for Automotive Applications (LT8604)

LT8604 Applications

  • Industrial Sensors
  • Industrial Internet of Things
  • 4mA to 20mA Current Loops
  • Flow Meters
  • Automotive Housekeeping Supplies

LT8604 Description

The LT8604 is a compact, high speed synchronous monolithic step-down switching regulator that delivers up to 120mA to the output with high efficiency at a constant frequency, even up to 2.2MHz. It accepts a wide input voltage range up to 42V and consumes only 2.5μA of quiescent current when operating in Burst Mode. Top and bottom power switches are included with all necessary circuitry to minimize the need for external components.

The SYNC/MODE pin selects the regulator’s operation between forced continuous mode, for predictive interference in sampling systems, Burst Mode, for increased efficiency at light loads or spread spectrum for Low EMI. It also allows synchronization to an external clock to further increase signal to noise ratio in high-resolution acquisition systems.

A PG flag signals when VOUT is within ±7.5% of the programmed output voltage and when in fault conditions. Thermal shutdown provides additional protection.

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