{"title":"Pololu 5V Step-Up/Step-Down Voltage Regulator S7V7F5","handle":"pololu-5v-step-up-step-down-voltage-regulator-s7v7f5","url":"/products/pololu-5v-step-up-step-down-voltage-regulator-s7v7f5","description":"The Pololu S7V7F5 is a compact buck-boost switching voltage regulator that accepts a wide input range of 2.7 V to 11.8 V and produces a fixed 5 V output with typical efficiency over 90%. It automatically steps up or steps down the input voltage as needed, making it ideal for battery-powered applications.\n\nThis flexibility is particularly useful when battery voltage drops during discharge. For example, a 4-cell alkaline holder starting at 6 V and dropping to 4 V, or a 9 V battery discharged well below 6 V, can both reliably power a 5 V circuit — something traditional linear or step-down-only regulators cannot achieve.\n\nKey Features\n\n\nBuck-Boost Topology – Automatically steps voltage up or down to maintain 5 V output\n\nWide Input Range – Accepts 2.7 V to 11.8 V input\n\nHigh Efficiency – Typical efficiency over 90%\n\nUp to 1 A Output – ~1 A continuous when stepping down, ~500 mA when stepping up\n\nBuilt-In Protection – Short-circuit protection and thermal shutdown\n\nCompact Size – Small board suitable for embedded projects\n\n\nSpecifications\n\n\nInput Voltage – 2.7 V to 11.8 V\n\nOutput Voltage – 5 V (fixed)\n\nOutput Current – ~1 A (step-down), ~500 mA (step-up)\n\nEfficiency – >90% typical\n\n\nIdeal For\n\nBattery-powered projects with varying voltage levels\nPowering 5 V microcontrollers and sensors from battery packs\nExtending usable battery life by operating across a wider discharge range\nEmbedded systems requiring stable 5 V from variable sources\n\n\n\nWarning: This board does not have reverse-voltage protection. Ensure correct polarity when connecting power.\n","vendor":"Pololu","product_type":"physical","in_stock":false,"options":[],"variants":[{"id":11563,"title":"Default Title","sku":"PL-2119","price":7.65,"on_sale":false,"in_stock":false,"available_quantity":0,"option1":"Default Title"}]}