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ADI LTC7812HUH#TRPBF product image
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ADI LTC7812HUH#TRPBF

Manufacturer
ADI
MPN
LTC7812HUH#TRPBF
LCSC Part #
C690218
Packaging
QFN-32-EP(5x5)
Customer #
Key Attributes
2 Adjustable QFN-32-EP(5x5) DC DC Switching Controllers RoHS
Datasheetpdf iconADI LTC7812HUH#TRPBF
RoHS Compliance1 documents available
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QtyUnit Price(Reference Only)Total Amount
1+$ 8.3965$ 8.40
200+$ 3.2506$ 650.12
500+$ 3.1364$ 1568.20
1,000+$ 3.0793$ 3079.30
Standard Packaging2500/Full Reel
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers
ManufacturerADI
PackagingQFN-32-EP(5x5)
Synchronous RectifierYes
FeaturesAdjustable soft-start;Frequency synchronization;Light load efficient mode;Built-in LDO regulator;Operating status indication
Number of Channels2
TopologyBuck;Boost
Operating Voltage4.5V~38V
Switch tube (built-in/external)-
Output Voltage800mV~24V;60V
Operating Temperature-40℃~+150℃@(TJ)
Output Current-
Frequency - Switching835kHz;535kHz
Output TypeAdjustable
FunctionBoost;Step-down type
Quiescent Current33uA
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Introduction

AI Translation

The LTC7812 is a high performance synchronous Boost+Buck DC/DC switching regulator controller that drives all N-channel power MOSFET stages. It contains independent step-up (boost) and step-down (buck) controllers that can regulate two separate outputs or be cascaded to regulate an output voltage from an input voltage that can be above, below or equal to the output voltage. The LTC7812 operates from a wide 4.5V to 38V input supply range. When biased from the output of the boost regulator, the LTC7812 can operate from an input supply as low as 2.5V after start-up. The 33µA no-load quiescent current extends operating run time in battery-powered systems. Unlike conventional buck-boost regulators, the LTC7812’s cascaded Boost+Buck solution has continuous, nonpulsating, input and output currents, substantially reducing voltage ripple and EMI. The LTC7812 has independent feedback and compensation points for the boost and buck regulation loops, enabling a fast output transient response that can be easily optimized externally.

Features

AI Translation
  • Synchronous Boost and Buck Controllers
  • When Cascaded, Allows VIN Above, Below or Equal to Regulated VOUT
  • Output Remains in Regulation Through Input Dips (e.g., Cold Crank) Down to 2.5V
  • Wide Bias Input Voltage Range: 4.5V to 38V
  • Low Input and Output Ripple
  • Low EMI
  • Fast Output Transient Response
  • High Light Load Efficiency
  • Low Operating IQ: 33µA (Both Channels On)
  • Low Operating IQ: 28µA (Buck Channel On)
  • RSENSE or Lossless DCR Current Sensing
  • Buck Output Voltage Range: 0.8V ≤ VOUT ≤ 24V
  • Boost Output Voltage Up to 60V
  • Phase-Lockable Frequency (75kHz to 850kHz)
  • Small 32-Pin 5mm × 5mm QFN Package

Applications

AI Translation
  • Automotive and Industrial Power Systems
  • High Power Battery Operated Systems