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ADI LTC3852EUDD#PBF product image
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ADI LTC3852EUDD#PBF

Manufacturer
ADI
MPN
LTC3852EUDD#PBF
LCSC Part #
C686356
Packaging
QFN-24-EP(3x5)
Customer #
Key Attributes
50mA 4.8V~5.3V QFN-24-EP(3x5) DC DC Switching Controllers RoHS
DatasheetADI LTC3852EUDD#PBF
RoHS Compliance1 documents available
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QtyUnit Price(Reference Only)Total Amount
1+$ 3.3139$ 3.31
200+$ 1.2827$ 256.54
500+$ 1.2379$ 618.95
1,000+$ 1.2163$ 1216.30
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers
ManufacturerADI
PackagingQFN-24-EP(3x5)
Operating Temperature-40℃~+125℃
Output Current50mA
FeaturesSoft-start;Output short-circuit protection;Digital control
Operating Voltage2.7V~5.5V
Frequency - Switching1.8MHz
Output Voltage4.8V~5.3V
Function-
Quiescent Current7mA
Energy Efficiency-
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Introduction

AI Translation

The LTC3852 is a constant frequency, current mode step-down DC/DC controller which can be powered by an onboard charge pump. Input supplies as low as 2.7V, when doubled by the charge pump, provide 5V to the LTC3852’s control logic and gate drives, supporting a wide selection of logic-level N-channel power MOSFETs. The constant-frequency current mode architecture allows for a phase-lockable fixed frequency of up to 750kHz. The RUN pin provides a precision enable threshold while the TRACK/SS pin combines tracking and adjustable soft-start features. The MODE/PLLIN pin selects among Burst Mode operation, pulse-skipping mode, and continuous current mode. Current foldback limits MOSFET power dissipation during short-circuit conditions. Reverse current and current foldback functions are disabled during soft-start. A power good output pin indicates when the output is within ±10% of its designed set point.

Features

AI Translation
  • Charge Pump Input Range: 2.7V to 5.5V
  • Controller Input Range: 4V to 38V
  • Integrated Charge Pump Provides 5V Gate Drive to Logic Level MOSFETs
  • RSENSE or DCR Current Sensing
  • ±1.25% Output Voltage Accuracy Over Temperature
  • Phase-Lockable Fixed Frequency: 250kHz to 750kHz
  • Power Good Output Voltage Monitor
  • Adjustable Soft-Start Voltage Ramping
  • Current Foldback Disabled During Start-Up
  • No Reverse Current During Soft-Start
  • Selectable Constant Frequency, Pulse-Skipping, or Burst Mode Operation
  • Output Overvoltage Protection
  • Very Low Dropout Operation: 99% Duty Cycle
  • Available in a 24-Lead (3mm×5mm) QFN Package

Applications

AI Translation
  • General Purpose 3.3V Systems
  • Lithium-Ion Powered Devices
  • Distributed DC Power Systems