Pololu Adjustable 4-12V Step-Up/Step-Down Voltage Regulator S18V20ALV

These step-up/step-down regulators take an input voltage from 3 V to 30 V and increase or decrease it as necessary to produce an adjustable 4 V to 12 V output. They are switching regulators (also called switched-mode power supplies (SMPS) or DC-to-DC converters) with a single-ended primary-inductor converter (SEPIC) topology, and they have a typical efficiency between 80% and 90%. The available output current is a function of the input voltage, output voltage, and efficiency (see the Typical Efficiency and Output Current section below), but it will be around 2 A when the input voltage is close to the output voltage.

Features:

• Input voltage: 2.9 V to 32 V
• Output adjustable from 4 V to 12 V
• Typical maximum output current: 2 A (when input voltage is close to the output voltage; the Typical Efficiency and Output Current section below shows how the achievable output current depends on input and output voltages)
• Integrated reverse-voltage protection (up to 30 V), over-current protection, over-temperature shutoff, and under-voltage lockout
• Typical efficiency of 80% to 90%, depending on input voltage, output voltage, and load
• Compact size: 1.7″ × 0.825″ × 0.38″ (43 × 21 × 10 mm)
• Two mounting holes for #2 or M2 screws
• Smaller holes for 0.1″ header pins and larger holes for terminal blocks offer several options for connecting to the board

WIKI: https://www.pololu.com/product/2572