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Keep Output Voltage Steady with Pololu 5V Step-Up/Step-Down Voltage Regulator S7V7F5

The Pololu 5V Step-Up/Step-Down Voltage Regulator S7V7F5 keeps output voltage steady even when the input moves above or below the target level.

That makes it a good choice for battery systems, mobile robots, and field devices that need dependable power across a wide input range.

Important: Choose a regulator based on your full input-voltage range, startup current, thermal limits, and required headroom. Real output current depends on input voltage, airflow, and temperature.

Why you'll love it

  • High efficiency: typically 85–95% (often >90%), so less heat and better battery life
  • Power-saving at low load: quiescent current can be <0.1mA with no load
  • Protections built-in: short-circuit + thermal shutdown
  • Perfect for batteries: works across 2.7V to 11.8V input—use 4×AA, 9V battery, Li-ion packs, and more while still feeding stable 5V
  • Tiny but capable: fits in tight builds (robot chassis, wearables, portable gadgets)
  • Clean 3-pin wiring: only VIN, GND, VOUT , on 0.1″ spacing for breadboard/perfboard compatibility

What you can build

Useful for battery-powered devices, mobile robots, field instruments, and portable systems where the input can move above and below the target output.

Compare regulator options

Model Topology Output Max current
S7V7F5 Buck-Boost 5 V
S13V10F5 Buck-Boost 5 V 1 A
D24V10F5 Buck 5 V 1 A
S13V20F5 Buck-Boost 5 V 2 A
D24V22F5 Buck 5 V 2.5 A
D36V28F5 Buck 5 V 3.2 A
D30V30F5 Buck 5 V 3.4 A

Technical specifications

Product Pololu 5V Step-Up/Step-Down Voltage Regulator S7V7F5
Brand Pololu
Model S7V7F5
Category DC-DC Step-Up/Step-Down Regulator
Topology Step-Down (Buck)
Output Voltage 5 V
Operating Voltage 2.7-11.8 V
Support Official Pololu product search and support resources linked below

Official resources

Find this product on Pololu | Pololu support and resources

What’s in the box

1 × Pololu 5V Step-Up/Step-Down Voltage Regulator S7V7F5

Frequently Asked Questions

Can I power a microcontroller with this?
Yes, if the regulator’s output voltage and current match your controller and all attached loads.
Will it run cool at full load?
It depends on input voltage, airflow, and load current. Check thermal limits in the official Pololu resources.
Is this better than a linear regulator?
For many builds, yes. Switching regulators are usually more efficient and waste less heat.

Build with this board

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Notes from the bench

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