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SC488MLTRT +BOM

MLPQ-24 Switching Controller, 3.1A, 4 X 4 MM, ROHS COMPLIANT

Hersteller:

SEMTECH
Herstellerteil #:

SC488MLTRT
Datenblatt:

SC488MLTRT Datenblatt (PDF)
Paket/Koffer:

QFN-24
Produktart:

Signal Switches, Multiplexers, Decoders
EDA/CAD Modelle:

Fordern Sie kostenlose CAD-Modelle für an SC488MLTRT

SC488MLTRT Allgemeine Beschreibung

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

Hauptmerkmale

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.

Anwendung

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.

Spezifikationen

Product Category

IC Chips

Servicerichtlinien und andere

After-Sales- und Abwicklungsbezogen

Zahlung

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Verpackung

AVAQ bestimmt und verpackt alle Geräte auf der Grundlage der Schutzanforderungen gegen elektrostatische Entladung (ESD) und Feuchtigkeitsempfindlichkeit (MSL)..