SEMTECH SC183CULTRT

The SC183C is a 2A synchronous step-down regulator designed to operate with an input voltage range of 2.9 to 5.5 Volts. The device offers fifteen pre-determined outputs 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 SC183C is also capable of adjusting output voltage via an external resistor divider. The device operates with a fixed 2.5MHz oscillator frequency, allowing the use of small surface mount external components. Connecting CTL0 — CTL3 to logic low forces the device into shutdown mode reducing the supply current to less than 1μA. Connecting any of the control pins to logic high enables the converter and sets the output voltage according to the specified conditions. Other features include undervoltage lockout, soft-start to limit in-rush current, and over-temperature protection. The SC183C is available in a thermally-enhanced, 3mm x 3mm x 0.6mm MLPQ-UT16 package.

• VIN Range: 2.9 – 5.5V
• VOUT Options: 0.8 - 3.3V
• Up to 2A Output Current
• Ultra-Small Footprint, <1mm Height Solution
• 2.5MHz 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
• <1μA Shutdown Current
• Internal Soft Start
• Input Under-Voltage Lockout
• Output Over-Voltage, Current Limit Protection
• Over-Temperature Protection
• Adjustable Output Voltage
• 3mm x 3mm x 0.6mm thermally enhanced MLPQ-UT16 package Pb-free, Halogen free, and RoHS/WEEE complian

• Office Automation and Computing
• Set-Top Box
• LCD TV
• Network Cards
• Printer