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ADI LTC3777ELXE#PBF

Manufacturer
ADI
MPN
LTC3777ELXE#PBF
LCSC Part #
C685948
Packaging
LQFP-48(7x7)
Customer #
Key Attributes
150V Vin and Vout Synchronous 4-Switch Buck-Boost Controller + Switched Bias Supply
DatasheetADI LTC3777ELXE#PBF
RoHS Compliance1 documents available
Every Order Guarantee
100% Authentic · 30-Day Return or Replacement
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QtyUnit Price(Reference Only)Total Amount
1+$ 22.6932$ 22.69
Standard Packaging250/Full Tray
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers
ManufacturerADI
PackagingLQFP-48(7x7)
Synchronous RectifierYes
FeaturesAdjustable current limiting;Load disconnect;Frequency synchronization;Built-in LDO regulator;Operating status indication
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 - Switching50kHz~600kHz
Output TypeAdjustable
FunctionBuck-Boost
Quiescent Current12uA
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Introduction

AI Translation

The LTC3777 is a high-performance buck-boost switching regulator controller that operates when the input voltage is above, below, or equal to the output voltage. A constant-frequency current mode architecture allows a phase-lockable frequency of up to 600kHz, while input/output constant current loops support battery charging. The 150V integrated switch bias supply is a high-efficiency buck regulator that delivers a regulated output voltage with a typical no-load DC supply current of only 12μA.

With a wide input and output range of 4.5V to 150V and seamless transitions between operating regions, the LTC3777 is ideal for industrial, telecom, and battery-powered system applications.

The LTC3777 features a power good output indicator and a mode pin for selecting pulse skip mode or forced continuous operation mode. The PLLIN pin allows the IC to synchronize with an external clock. The SS pin regulates the output voltage during startup. Current foldback limits MOSFET power dissipation under 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 improvement
  • ±1% 1.2V voltage reference
  • Input or output average current limiting
  • Integrated 12μA, 150V, 85mA switch bias for optimized thermal performance
  • Programmable 6V to 10V DRVCC for optimized efficiency
  • No top FET refresh noise in boost or buck mode
  • VOUT disconnected from VIN during shutdown
  • Lockable fixed frequency (50kHz to 600kHz)
  • No reverse current at startup
  • 150V-rated RUN pin with precision enable threshold
  • Thermally enhanced 48-pin e-LQFP package

Applications

AI Translation
  • Industrial
  • Transportation
  • Medical