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ADI LTC3789IUFD#TRPBF product image
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ADI LTC3789IUFD#TRPBFRoHS

Manufacturer
ADI
MPN
LTC3789IUFD#TRPBF
LCSC Part #
C686032
Packaging
QFN-28-EP(4x5)
Customer #
Key Attributes
2 Adjustable 800mV~38V Buck-Boost QFN-28-EP(4x5) DC DC Switching Controllers RoHS
Datasheetpdf iconADI LTC3789IUFD#TRPBF
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QtyUnit Price(Reference Only)Total Amount
1+$ 8.9923$ 8.99
200+$ 3.4806$ 696.12
500+$ 3.3586$ 1679.30
1,000+$ 3.2984$ 3298.40
Standard Packaging2500/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers
ManufacturerADI
PackagingQFN-28-EP(4x5)
Operating Temperature-40℃~+125℃@(TJ)
Synchronous RectifierYes
FeaturesAdjustable current limiting;Adjustable soft-start;Load disconnect;Frequency synchronization;Light load efficient mode;Overcurrent Protection;Built-in LDO regulator;Operating status indication
Output Current-
Number of Channels2
TopologyBuck-Boost
Frequency - Switching640kHz
Operating Voltage4V~38V
Output TypeAdjustable
Switch tube (built-in/external)External
Output Voltage800mV~38V
FunctionBuck-Boost
Quiescent Current3mA
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging2500
Sales UnitPiece

Introduction

AI Translation

The LTC3789 is a high performance buck-boost switching regulator controller that operates from input voltages above, below or equal to the output voltage. The constant-frequency, current mode architecture allows a phase-lockable frequency of up to 600kHz, while an output current feedback loop provides support for battery charging. With a wide 4V to 38V (40V maximum) input and output range and seamless, low noise transitions between operating regions, the LTC3789 is ideal for automotive, telecom and battery-powered systems. The operating mode of the controller is determined through the MODE/PLLIN pin. The MODE/PLLIN pin can select between pulse-skipping mode and forced continuous mode operation and allows the IC to be synchronized to an external clock. Pulse-skipping mode offers high efficiency and low ripple at light loads, while forced continuous mode operates at a constant frequency for noise-sensitive applications. A PGOOD pin indicates when the output is within 10% of its designed set point. The LTC3789 is available in low profile 28-pin 4mm × 5mm QFN and narrow SSOP packages.

Features

AI Translation
  • Single Inductor Architecture Allows VIN Above, Below or Equal to the Regulated VOUT
  • Programmable Input or Output Current
  • Wide VIN Range: 4V to 38V
  • 1% Output Voltage Accuracy: 0.8V < VOUT < 38V
  • Synchronous Rectification: Up to 98% Efficiency
  • Current Mode Control
  • Phase-Lockable Fixed Frequency: 200kHz to 600kHz
  • No Reverse Current During Start-Up
  • Power Good Output Voltage Monitor
  • Internal 5.5V LDO
  • Quad N-Channel MOSFET Synchronous Drive
  • VOUT Disconnected from VIN During Shutdown
  • True Soft-Start and VOUT Short Protection, Even in Boost Mode
  • Available in 28-Lead QFN (4mm × 5mm) and 28-Lead SSOP Packages

Applications

AI Translation
  • Automotive Systems
  • Distributed DC Power Systems
  • High Power Battery-Operated Devices
  • Industrial Control