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ADI LTC3775IMSE#PBF

Produttore
ADI
Cod. Prod.
LTC3775IMSE#PBF
Cod. LCSC
C685940
Imballo
MSOP-16-EP
Numero Cliente
Attr. chiave
1 Adjustable 600mV~30.4V Step-down type MSOP-16-EP DC DC Switching Controllers RoHS
Scheda TecnicaADI LTC3775IMSE#PBF
Conformità RoHS1 documenti disponibili
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Specifiche del Prodotto

Tutto
TipoDescrizione
CategoriaIntegrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers
ProduttoreADI
ImballoMSOP-16-EP
Operating Temperature-40℃~+125℃@(TJ)
Synchronous RectifierYes
FeaturesAdjustable current limiting;Cycle-by-cycle current limiting;Adjustable soft-start;Frequency synchronization;External compensation;Overcurrent Protection
Output Current-
Number of Channels1
TopologyBuck
Frequency - Switching1MHz
Operating Voltage4.5V~38V
Output TypeAdjustable
Switch tube (built-in/external)External
Output Voltage600mV~30.4V
FunctionStep-down type
Quiescent Current3.5mA
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Descrizione

Traduzione AI

The LTC3775 is a high efficiency synchronous step-down switching DC/DC controller that drives an all N-channel power MOSFET stage from a 4.5V to 38V input supply voltage. A patented line feedforward compensation circuit and a high bandwidth error amplifier provide very fast line and load transient response. High step-down ratios are made possible by a low 30ns minimum on-time, allowing extremely low duty cycles. MOSFET RDS(ON) current sensing maximizes efficiency. Alternatively, a sense resistor can be used for higher current limit accuracy. Continuous monitoring of the voltages across the top and bottom MOSFETs allows cycle-by-cycle control of the inductor current, configurable by external resistors. The soft-start function controls the duty cycle during start-up, providing a smooth output voltage ramp up. The operating frequency is user programmable from 250kHz to 1MHz and can be synchronized to an external clock.

Caratteristiche

Traduzione AI
  • Wide VIN Range: 4.5V to 38V
  • Line Feedforward Compensation
  • Low Minimum On-Time: <30ns
  • Powerful Onboard MOSFET Drivers
  • Leading Edge Modulation Voltage Mode Control
  • ±0.75%, 0.6V Reference Voltage Accuracy Over Temperature
  • VOUT Range: 0.6V to 0.8VIN
  • Programmable, Cycle-by-Cycle Peak Current Limit
  • Sense Resistor or RDS(ON) Current Sensing
  • Programmable Soft-Start
  • Synchronizable Fixed Frequency from 250kHz to 1MHz
  • Selectable Pulse-Skipping or Forced Continuous Modes of Operation
  • Low Shutdown Current: 14μA Typical
  • Thermally Enhanced 16-Lead MSOP and 3mm×3mm QFN Packages

Applicazioni

Traduzione AI
  • Automotive Systems
  • Telecom and Industrial Power Supplies
  • Point of Load Applications