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ADI LTC3839IUH#PBF product image
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ADI LTC3839IUH#PBFRoHS

Manufacturer
ADI
MPN
LTC3839IUH#PBF
LCSC Part #
C686293
Packaging
QFN-32-EP(5x5)
Customer #
Key Attributes
2 Adjustable 600mV~5.5V Step-down type QFN-32-EP(5x5) DC DC Switching Controllers RoHS
Datasheetpdf iconADI LTC3839IUH#PBF
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QtyUnit Price(Reference Only)Total Amount
1+$ 6.5999$ 6.60
200+$ 2.5545$ 510.90
500+$ 2.465$ 1232.50
1,000+$ 2.4202$ 2420.20
Standard Packaging73/Full Tube
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers
ManufacturerADI
PackagingQFN-32-EP(5x5)
Operating Temperature-40℃~+125℃@(TJ)
Synchronous RectifierYes
FeaturesOutput voltage differential sensing;Frequency synchronization;Overcurrent Protection;Operating status indication;Output voltage tracking;Adjustable soft-start;Built-in LDO regulator
Output Current-
Number of Channels2
TopologyBuck
Frequency - Switching2MHz
Operating Voltage4.5V~38V
Output TypeAdjustable
Switch tube (built-in/external)External
Output Voltage600mV~5.5V
FunctionStep-down type
Quiescent Current3mA
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Introduction

AI Translation

The LTC3839 is a 2-phase, single-output PolyPhase synchronous step-down switching regulator controller that drives all N-channel power MOSFETs. The controlled on-time, valley current mode control architecture allows for fast transient response and constant frequency switching in steady-state operation, independent of VIN, VOUT and load current. Its load-release transient detection feature significantly reduces overshoot at low output voltages. Differential output voltage sensing, along with a precision internal reference, offers an accurate ±0.67% output regulation, even if the remote output ground deviates from local ground by ±500mV. The switching frequency can be programmed from 200kHz to 2MHz with an external resistor and can be synchronized to an external clock. Very low tON and tOFF times allow for near 0% and near 100% duty cycles, respectively. Voltage tracking soft start-up and multiple safety features are provided.

Features

AI Translation
  • Wide VIN Range: 4.5V to 38V, VOUT: 0.6V to 5.5V
  • ±0.67% Output Voltage Accuracy Over Temperature
  • Differential Output Voltage Sensing, Allowing Up to ±500mV Line Loss at Remote Ground
  • Controlled On-Time, Valley Current Mode Control
  • Fast Load Transient Response
  • Detect Transient (DTR) Reduces VOUT Overshoot
  • Frequency Programmable from 200kHz to 2MHz, Synchronizable to External Clock
  • tON(MIN) = 30ns, tOFF(MIN) = 90ns
  • Up to 12-Phase Operation
  • RSENSE or Inductor DCR Current Sensing
  • Overvoltage Protection and Current Limit Foldback
  • Power Good Output Voltage Monitor
  • Output Voltage Tracking and Adjustable Soft Start-Up
  • Thermally Enhanced 32-Pin (5mm×5mm) QFN Package

Applications

AI Translation
  • Distributed Power Systems
  • Point-of-Load Converters
  • Computing Systems
  • Data Communication Systems