LT3840IFE#PBF

LT3840IFE#PBF

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LT3840IFE#PBF
IC REG CTRLR BUCK 28TSSOP
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$82.98

Price update:a months ago
Available in stock: 1000
45
Serves customers in 45 countries
1000+
Worldwide Manufacturers
$140M
$140M Growth in 5 Years
50.0M+
50M Parts Shipped in 5 Years
Linear Technology

Linear Technology

Analog Devices (NASDAQ: ADI), a pioneer in intricate design and fabrication of advanced analog, blended-signal, and digital signal processing (DSP) integrated circuits. Since 1965, they've tackled complex signal processing challenges across global electronic domains. Merged with Maxim Integrated, they offer superior mixed-signal and power management technologies, catering to a digitally connected realm. This alliance couples vast engineering acumen and domain mastery, addressing complexities from DC to 100 GHz, spanning sensors to the cloud.

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LT3840IFE#PBF actual photo Pinout

The LT3840IFE is a high voltage synchronous step-down switching regulator controller capable of operating from a 2.5V to 60V supply.

The LT3840’s low quiescent current, when configured for user selectable Burst Mode operation, helps extend run time in battery-powered systems by increasing efficiency at light loads. The LT3840IFE uses a constant frequency, current mode architecture. High current applications are possible with large N-channel gate drivers capable of driving multiple low RDS(ON) MOSFETs.

An integrated buck-boost switching regulator generates a 7.5V bias supply voltage for MOSFET gate drive and IC power allowing higher efficiency operation over the entire input voltage range and eliminating the need for an external bias voltage. An accurate current limit set point regulates the maximum output current. A current monitor reports the average output current.

Feature

  • Wide Input Range: 2.5V to 60V
  • Integrated Buck-Boost Supply for 7.5V MOSFET Gate Drive
  • Programmable Constant-Current Operation with Current Monitor Output
  • Low IQ: 75μA, 12VIN to 3.3VOUT
  • Selectable Low Output Ripple Burst Mode® Operation
  • VOUT Up to 60V
  • Adjustable and Synchronizable: 50kHz to 1MHz
  • Internal OVLO Protects for Input Transients Up to 80V
  • Accurate Input Overvoltage and Undervoltage Threshold
  • Programmable Soft-Start with Voltage Tracking
  • Power Good and Output OVP
  • 28-Lead TSSOP and 38-Lead 4mm × 6mm QFN Packages

Applications

  • Automotive Supplies
  • Industrial Systems
  • Distributed DC Power Systems

Product Attributes

TYPE DESCRIPTION Select all
Product Status Active
Clock Sync Yes
Synchronous Rectifier Yes
Frequency - Switching 50kHz ~ 1MHz
Voltage - Supply (Vcc/Vdd) 2.5V ~ 60V
Output Phases 1
Supplier Device Package 28-TSSOP-EP
Number of Outputs 1
Package / Case 28-TSSOP (0.173", 4.40mm Width) Exposed Pad
Topology Buck
Mounting Type Surface Mount
Output Configuration Positive or Negative
Operating Temperature -40°C ~ 125°C (TJ)
Function Step-Down
Control Features Enable, Frequency Control, Power Good, Soft Start, Tracking
Output Type Transistor Driver
Package Tube
Duty Cycle (Max) 99%

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$82.98

Price update:a months ago
Available in stock: 1000
Linear Technology

Linear Technology

Analog Devices (NASDAQ: ADI), a pioneer in intricate design and fabrication of advanced analog, blended-signal, and digital signal processing (DSP) integrated circuits. Since 1965, they've tackled complex signal processing challenges across global electronic domains. Merged with Maxim Integrated, they offer superior mixed-signal and power management technologies, catering to a digitally connected realm. This alliance couples vast engineering acumen and domain mastery, addressing complexities from DC to 100 GHz, spanning sensors to the cloud.

View All Product from Linear Technology

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