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ADI LTC3779IFE#PBF product image
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ADI LTC3779IFE#PBFRoHS

Manufacturer
ADI
MPN
LTC3779IFE#PBF
LCSC Part #
C685956
Packaging
TSSOP-38-EP-4.4mm
Customer #
Key Attributes
150V Vin and Vout Synchronous 4-Switch Buck-Boost Controller
Datasheetpdf iconADI LTC3779IFE#PBF
In-Stock: 61
61 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 19.7534$ 18.1732$ 18.17
10+$ 18.8241$ 17.3182$ 173.18
30+$ 17.2161$ 15.8389$ 475.17
100+$ 15.8132$ 14.5482$ 1454.82
Standard Packaging50/Full Tube
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers
ManufacturerADI
PackagingTSSOP-38-EP-4.4mm
Synchronous RectifierYes
FeaturesAdjustable current limiting;Load disconnect;Frequency synchronization;Light load efficient mode;Operating status indication;Built-in LDO regulator;Adjustable soft-start
Number of Channels1
TopologyBuck-Boost
Operating Voltage4.5V~150V
Switch tube (built-in/external)External
Output Voltage1.2V~150V
Operating Temperature-40℃~+125℃@(TJ)
Output Current-
Frequency - Switching225kHz~275kHz;50kHz~600kHz
Output TypeAdjustable
FunctionBuck-Boost
Quiescent Current3.6mA
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging50
Sales UnitPiece

Introduction

AI Translation

The LTC3779 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 phaselockable frequency of up to 600kHz, while an input/ output constant-current loop provides support for battery charging. With a wide 4.5V to 150V input and output range and seamless transfers between operating regions, the LTC3779 is ideal for automotive, telecom and batterypowered systems. The LTC3779 features a precision 1.2V reference and power good output indicator. The MODE pin can select between pulse-skipping mode or forced continuous mode of operation. Pulse-skipping mode offers high efficiency at light load while forced continuous mode operates at a constant frequency for noise sensitive applications. The PLLIN pin allows the IC to be synchronized to an external clock. The SS pin ramps the output voltage during start-up. Current foldback limits MOSFET heat dissipation during short-circuit conditions.

Features

AI Translation
  • 4-Switch Current Mode Single Inductor Architecture
  • Allows VIN Above, Below or Equal to VOUT
  • Wide VIN Range: 4.5V to 150V
  • Wide Output Voltage Range: 1.2V ≤ VOUT ≤ 150V
  • Synchronous Rectification: Up to 9% Efficiency
  • ±1% 1.2V Voltage Reference
  • Input or Output Average Current Limit
  • Onboard LDO or External NMOS LDO for DRVCC
  • 36V EXTVCC LDO Powers Drivers
  • Programmable 6V to 10V DRVCC Optimizes Efficiency
  • No Top FET Refresh Noise in Boost or Buck Mode
  • VOUT Disconnected from VIN During Shutdown
  • Phase-Lockable Fixed Frequency (50kHz to 600kHz)
  • No Reverse Current During Start-Up
  • Power Good Output Voltage Monitor
  • 150V Rated RUN Pin with Accurate Turn-On Threshold
  • Programmable Input Overvoltage Lockout
  • Thermally Enhanced FE38 TSSOP Package Modified for High Voltage Operation

Applications

AI Translation
  • Industrial
  • Automotive
  • Medical