Semtech | SC283WLTRT

The SC283 is a dual channel 1.8A synchronous step-down regulator designed to operate with an input voltage range of 2.9 to 5.5 Volts. Each channel offers fifteen pre-determined output voltages via four control pins programmable from 0.8 to 3.3 Volts.

The control pins allow for on-the-fly voltage changes, enabling system designers to implement dynamic power savings. The SC283 is also capable of adjusting the output voltage via an external resistor divider. The device operates with a fixed 2.5 MHz oscillator frequency, allowing the use of small surface mount external components.

The SC283 is available in a thermally-enhanced, 2 mm x 3 mm x 0.8 mm MLPQ-W18 package and has a rated temperature range of -40 to +85°C.

Features:

• VIN Range: 2.9 – 5.5 V
• VOUT Selectable: 0.8 - 3.3 V
• Up to 1.8 A Output Current for Each Channel
• Ultra-Small Footprint, <1 mm Height Solution
• 2.5 MHz Switching Frequency
• Efficiency Up to 93%
• Low Output Noise Across Load Range
• Excellent Transient Response
• Start Up into Pre-Bias Output
• 100% Duty-Cycle Low Dropout Operation
• <1 µA Shutdown Current
• Internal Soft Start
• Input Under-Voltage Lockout
• Output Over-Voltage, Current Limit Protection
• Over-Temperature Protection
• Adjustable Output Voltage
• 2 mm x 3 mm x 0.8 mm thermally enhanced MLPQ-W18 package
• -40 to +85° C Temperature Range
• Pb-Free product. RoHS/WEEE and Halogen Free compliant

Applications:

• Desktop Computing
• Set-Top Box
• LCD TV
• Network Cards
• Printer

View the complete SC283 series Buck Regulators