LTC3729EG#PBF

LTC3729EG#PBF

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LTC3729EG#PBF
IC REG CTRLR BUCK 28SSOP
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$2.76

Price update:a months ago
Available in stock: 169
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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LTC3729EG#PBF Products

The LTC3729EG is a multiple phase, synchronous step-down current mode switching regulator controller that drives N-channel external power MOSFET stages in a phase-lockable fixed frequency architecture. The PolyPhase controller drives its two output stages out of phase at frequencies up to 550kHz to minimize the RMS ripple currents in both input and output capacitors. The output clock signal allows expansion for up to 12 evenly phased controllers for systems requiring 15A to 200A of output current. The multiple phase technique effectively multiplies the fundamental frequency by the number of channels used, improving transient response while operating each channel at an optimum frequency for efficiency. Thermal design is also simplified.

An internal differential amplifier provides true remote sensing of the regulated supply’s positive and negative output terminals as required for high current applications.

A RUN/SS pin provides both soft-start and optional timed, short-circuit shutdown. Current foldback limits MOSFET dissipation during short-circuit conditions when the overcurrent latchoff is disabled. OPTI-LOOP compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. The LTC3729EG includes a power good output pin that indicates when the output is within ±7.5% of the designed set point.

Vin MaxVrefLTC372936V0.8LTC3729L-630V0.6

Feature

  • Wide VIN Range: 4V to 36V Operation
  • Reduces Required Input Capacitance and Power Supply Induced Noise
  • ±1% Output Voltage Accuracy
  • Phase-Lockable Fixed Frequency: 250kHz to 550kHz
  • True Remote Sensing Differential Amplifier
  • PolyPhase™ Extends from Two to Twelve Phases
  • Reduces the Size and Value of Inductors
  • Current Mode Control Ensures Current Sharing
  • 1.1MHz Effective Switching Frequency (2-Phase)
  • OPTI-LOOP™ Compensation Reduces COUT
  • Power Good Output Voltage Indicator
  • Very Low Dropout Operation: 99% Duty Cycle
  • Adjustable Soft-Start Current Ramping
  • Internal Current Foldback Plus Shutdown Timer
  • Overvoltage Soft-Latch Eliminates Nuisance Trips
  • Available in 5mm x 5mm QFN and 28-Lead SSOP Package

Applications

  • Desktop Computers
  • Large Memory Arrays
  • DC Power Distribution Systems

Product Attributes

TYPE DESCRIPTION Select all
Product Status Active
Clock Sync No
Synchronous Rectifier Yes
Frequency - Switching 260kHz ~ 550kHz
Voltage - Supply (Vcc/Vdd) 4V ~ 36V
Output Phases 2
Supplier Device Package 28-SSOP
Number of Outputs 2
Package / Case 28-SSOP (0.209", 5.30mm Width)
Topology Buck
Mounting Type Surface Mount
Output Configuration Positive
Operating Temperature -40°C ~ 85°C (TA)
Function Step-Down
Control Features Current Limit, Enable, Phase Control, Power Good, Soft Start
Output Type Transistor Driver
Package Tube
Series PolyPhase®
Duty Cycle (Max) 99.5%

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$2.76

Price update:a months ago
Available in stock: 169
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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