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ADI LTC3780EG#PBFRoHS

Manufacturer
ADI
MPN
LTC3780EG#PBF
LCSC Part #
C86301
Packaging
SSOP-24-208mil
Customer #
Key Attributes
High-efficiency, synchronous, four-switch buck-boost controller
Datasheetpdf iconADI LTC3780EG#PBF
In-Stock: 28
28 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 13.9926$ 10.7743$ 10.77
10+$ 12.4227$ 9.5655$ 95.66
50+$ 11.004$ 8.4731$ 423.66
100+$ 10.2011$ 7.8549$ 785.49
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
PackagingSSOP-24-208mil
Synchronous RectifierYes
FeaturesAdjustable soft-start;Frequency synchronization;Built-in LDO regulator;Operating status indication;Overcurrent Protection;Light load efficient mode
Number of Channels1
TopologyBuck-Boost
Operating Voltage4V~30V
Switch tube (built-in/external)External
Output Voltage800mV~30V
Operating Temperature-40℃~+85℃@(TJ)
Output Current-
Frequency - Switching400kHz
Output TypeAdjustable
FunctionBuck-Boost
Quiescent Current2.4mA
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging50
Sales UnitPiece

Introduction

AI Translation

A high-performance buck-boost switching regulator controller that operates when the input voltage is above, below, or equal to the output voltage. The constant-frequency current mode architecture provides a phase-lockable frequency of up to 400kHz. With a wide input and output range of 4V to 30V (maximum 36V) and seamless transitions between operating modes, it is an ideal choice for automotive, telecommunications, and battery-powered systems. The operating mode of this controller is determined via the FCB pin. For boost applications, the FCB mode pin selects among Burst Mode operation, discontinuous mode, and forced continuous mode. During buck operation, the FCB mode pin selects among skip cycle mode, discontinuous mode, and forced continuous mode. Burst Mode operation and skip cycle mode enable high-efficiency operation under light load conditions, while forced continuous mode and discontinuous mode operate at a constant frequency. Fault protection is provided by an output overvoltage comparator and an internal foldback current limit circuit. The power good output pin asserts when the output is within 7.5% of its designed regulation point.

Features

AI Translation
  • Single-inductor architecture allows Vin above, below, or equal to VOUT
  • Wide Vin range: 4V to 36V operating voltage
  • Synchronous rectification: up to 98% efficiency
  • Current mode control
  • ±1% output voltage accuracy: 0.8V < VOUT < 30V
  • Phase-lockable fixed frequency: 200kHz to 400kHz
  • PowerGood output voltage monitor
  • Internal LDO for MOSFET gate drive
  • Four N-channel MOSFET synchronous drive
  • VOUT disconnected from ΔVin during shutdown
  • Adjustable soft-start current ramp
  • Foldback output current limiting
  • Optional low current mode
  • Output overvoltage protection
  • Available in 24-pin SSOP and exposed pad (5mm×5mm) 32-pin QFN packages

Applications

AI Translation
  • Automotive systems
  • Telecommunications systems
  • DC power distribution systems
  • High-power battery-powered devices
  • Industrial control