Metodo di pagamento
SC488MLTRT +BOM
MLPQ-24 Switching Controller, 3.1A, 4 X 4 MM, ROHS COMPLIANT
QFN-24-
Produttore:
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ProduttorePart #:
SC488MLTRT
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Scheda dati:
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Pacchetto/custodia:
QFN-24
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Tipologia di prodotto:
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EDA/CAD Modelli:
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SC488MLTRT Descrizione generale
Description The SC488 is a combination switching regulator and linear source/sink regulator intended for DDR1/2 memory systems. The purpose of the switching regulator is to generate the supply voltage, VDDQ, for the memory system. It is a pseudo-fixed frequency constant on-time controller designed for high efficiency, superior DC accuracy, and fast transient response. The purpose of the linear source/sink regulator is to generate the memory termination voltage, VTT, with the ability to source and sink 2.8A peak currents.Features ♦ Constant On-Time Controller for Fast Dynamic Response on VDDQ ♦ DDR1/DDR2/DDR3 Compatible ♦ VDDQ = Fixed 1.8V or 2.5V, or Adjustable From 1.5V to 3.0V ♦ 1.5% Internal Reference (2.5% System Accuracy) ♦ Resistor Programmable On-Time for VDDQ ♦ VCCA/VDDP Range = 4.5V to 5.5V ♦ VIN Range = 2.5V to 25V ♦ VDDQ DC Current Sense Using Low-Side RDS(ON) Sensing ♦ External RSENSE in Series with Low-Side FET ♦ Cycle-by-Cycle Current Limit for VDDQ ♦ Digital Soft-Start for VDDQ ♦ Analog Soft-Start for VTT/REF ♦ Smart Over-Voltage VDDQ Protection ♦ Combined EN and PSAVE Pin for VDDQ ♦ Over-Voltage/Under-Voltage Fault Protection ♦ Power Good Output ♦ Separate VCCA and VDDP Supplies ♦ VTT/REF Range = 0.75V – 1.5V ♦ VTT Source/Sink 2.8A Peak ♦ Internal Resistor Divider for VTT/REF ♦ VTT is High Impedance in S3 ♦ VDDQ, VTT, REF are Actively Discharged in S4/S5 ♦ 24 Lead MLPQ (4x4 mm) Lead-Free Package ♦ Product Is Fully WEEE and RoHS CompliantApplications ♦ Notebook Computers ♦ CPU I/O Supplies ♦ Handheld Terminals and PDAs ♦ LCD Monitors ♦ Network Power Supplies
Caratteristiche principali
- 1. Low noise and distortion.
- 2. Wide bandwidth and high slew rate.
- 3. Low input bias and offset currents.
- 4. Rail-to-rail input and output operation.
- 5. High output current drive capability.
Applicazione
- 1. Audio amplification and buffering.
- 2. Filters and equalizers.
- 3. Sensor conditioning circuits.
- 4. Signal amplification and conditioning in communication systems.
- 5. Active filters and oscillators.
- 6. Voltage and current references.
Specifiche
Product Category | IC Chips |
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Prodotto 365 giorni
Qualità garantita
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In Stock: 4.102
Minimum Order: 1
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