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ADI LTC3856IFE#TRPBF product image
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ADI LTC3856IFE#TRPBF

Manufacturer
ADI
MPN
LTC3856IFE#TRPBF
LCSC Part #
C686389
Packaging
TSSOP-38-EP-4.4mm
Customer #
Key Attributes
2 Adjustable 600mV~5V Step-down type TSSOP-38-EP-4.4mm DC DC Switching Controllers RoHS
DatasheetADI LTC3856IFE#TRPBF
RoHS Compliance1 documents available
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QtyUnit Price(Reference Only)Total Amount
1+$ 4.3559$ 4.36
10+$ 3.7312$ 37.31
30+$ 3.358$ 100.74
100+$ 2.9816$ 298.16
500+$ 2.8088$ 1404.40
1,000+$ 2.7302$ 2730.20
Standard Packaging2000/Full Reel
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers
ManufacturerADI
PackagingTSSOP-38-EP-4.4mm
Operating Temperature-40℃~+125℃@(TJ)
Synchronous RectifierYes
Output Current-
FeaturesAdjustable current limiting;Adjustable soft-start;Output voltage tracking;Frequency synchronization;Light load efficient mode;Output voltage differential sensing;Operating status indication;Built-in LDO regulator
Number of Channels2
TopologyBuck
Frequency - Switching770kHz
Operating Voltage4.5V~38V
Output TypeAdjustable
Switch tube (built-in/external)External
Output Voltage600mV~5V
FunctionStep-down type
Quiescent Current4mA
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Introduction

AI Translation

The LTC3856 is a single output, dual channel PolyPhase synchronous step-down DC/DC controller that drives all N-channel power MOSFET stages. This device includes a high speed differential amplifier for remote output voltage sense. Power loss and supply noise are minimized by operating the two controller output stages out-of-phase and up to 12-phase operation can be achieved. The LTC3856 monitors the output current by sensing the voltage drop across the output inductor (DCR) or by using a sense resistor. DCR temperature compensation maintains an accurate current sense threshold over a broad temperature range. A constant-frequency, current mode architecture allows a phase-lockable frequency of up to 770kHz. A wide 4.5V to 38V input supply range encompasses most intermediate bus voltages and battery chemistries. Burst Mode operation, continuous or Stage Shedding modes are supported. A TK/SS pin shared by both channels ramps the output voltage during start-up.

Features

AI Translation
  • PolyPhase Controller Reduces Input and Output Capacitance and Power Supply Induced Noise
  • Wide VIN Range: 4.5V to 38V Operation
  • ±0.75%, 0.6V Reference Voltage Accuracy
  • High Efficiency: Up to 95%
  • Programmable Burst Mode Operation or Stage Shedding for Highest Light Load Efficiency
  • Active Voltage Positioning (AVP)
  • RSENSE or DCR Current Sensing
  • Programmable DCR Temperature Compensation
  • Phase-Lockable Fixed Frequency: 250kHz to 770kHz
  • True Remote Sense Differential Amplifier
  • Dual N-Channel MOSFET Synchronous Drive
  • VOUT Range: 0.6 to 5V without Differential Amplifier
  • VOUT Range: 0.6 to 3.3V with Differential Amplifier
  • Adjustable Soft-Start or VOUT Tracking
  • Stackable for Up to 12-Phase Operation
  • 32-Pin (5mm×5mm) QFN and 38-Pin TSSOP Packages

Applications

AI Translation
  • Telecom and Datacom Systems
  • Industrial and Medical Instruments
  • DC Power Distribution Systems
  • Computer Systems