5V Step-Up/Step-Down Voltage Regulator S7V7F5

The S7V7F5 switching step-up/step-down regulator efficiently produces 5 V from input voltages between 2.7 V and 11.8 V. Its ability to convert both higher and lower input voltages makes it useful for applications where the power supply voltage can vary greatly, as with batteries that start above but discharge below 5 V. The very compact (0.35″ × 0.475″) module has a typical efficiency of over 90% and can supply up to 1 A when stepping down and about 500 mA when stepping up.

In typical applications, this regulator can deliver about 1 A continuous when the input voltage is higher than 5 V (stepping down) and 500 mA continuous when the input is lower than 5 V (stepping up); please see the graphs at the bottom of this page for a more detailed characterization. The regulator has short-circuit protection, and thermal shutdown prevents damage from overheating; the board does not have reverse-voltage protection.

For an adjustable-output version of this regulator, consider our step-up/step-down voltage regulator S7V8A.

Features

  • input voltage: 2.7 V to 11.8 V
  • fixed  5V output with +5/-3% accuracy
  • typical continuous output current: 1 A when stepping down; 500 mA when stepping up (Actual continuous output current depends on input voltage. See Typical Efficiency and Output Current section below for details.)
  • power-saving feature maintains high efficiency at low currents (quiescent current is less than 0.1 mA)
  • integrated over-temperature and short-circuit protection
  • small size: 0.35″ × 0.475″ × 0.1″ (9 × 12 × 3 mm)

Connections

The step-up/step-down regulator has just three connections: the input voltage (VIN), ground (GND), and the output voltage (VOUT). These three connections are labeled on the back side of the PCB, and they are arranged with a 0.1″ spacing along the edge of the board for compatibility with standard solderless breadboards and perfboards and connectors that use a 0.1″ grid.

The input voltage, VIN, should be between 2.7 V and 11.8 V. Lower inputs can shut down the voltage regulator; higher inputs can destroy the regulator, so you should ensure that noise on your input is not excessive, and you should be wary of destructive LC spikes (see below for more information).

The output voltage, VOUT, is regulated to a fixed 5 V, but it can be as high as 5.2 V when there is little or no load on the regulator.

LC Voltage Spikes

When connecting voltage to electronic circuits, the initial rush of current can cause voltage spikes that are much higher than the input voltage. If these spikes exceed the regulator’s maximum voltage, the regulator can be destroyed. If you are connecting more than about 9 V, using power leads more than a few inches long, or using a power supply with high inductance, we recommend soldering a 33 μF or larger electrolytic capacitor close to the regulator between VIN and GND. The capacitor should be rated for at least 16 V.

Write a review

Please login or register to review

5V Step-Up/Step-Down Voltage Regulator S7V7F5

  • Manufacturer: Pololu
  • Product Code: S7V7F5
  • Availability:  54
  • £4.56

  • Ex Tax: £3.80

Related Products

78L05 5V 100mA Voltage Regulator

78L05 5V 100mA Voltage Regulator

These regulators employ internal current limiting and thermal shutdown making them essentially in..

£0.34 Ex Tax: £0.28

7805 5V 1A Voltage Regulator

7805 5V 1A Voltage Regulator

7805 5V 1A Voltage Regulator The L7805CV is a LOW DROP Voltage Regulator able to provide up t..

£0.42 Ex Tax: £0.35

NCP1402-3.3V DC-DC Step-Up Converter Breakout

NCP1402-3.3V DC-DC Step-Up Converter Breakout

The NCP1402 is a 3.3V DC-DC converter. The breakout board will accept voltage inputs between 1 an..

£5.40 Ex Tax: £4.50

5V, 300mA Step-Down Voltage Regulator D24V3F5

5V, 300mA Step-Down Voltage Regulator D24V3F5

5V, 300mA Step-Down Voltage Regulator D24V3F5 The compact (0.4"×0.5") D24V3F5..

£3.00 Ex Tax: £2.50

3.3V Step-Up/Step-Down Voltage Regulator S7V8F3

3.3V Step-Up/Step-Down Voltage Regulator S7V8F3

3.3V Step-Up/Step-Down Voltage Regulator S7V8F3 The S7V8F3 switching step-up/step-down regula..

£4.80 Ex Tax: £4.00

3.3V Step-Up Voltage Regulator U1V10F3

3.3V Step-Up Voltage Regulator U1V10F3

3.3V Step-Up/Down Voltage Regulator U1V10F3 This tiny (0.35″×0.45″) U1V10F3..

£3.54 Ex Tax: £2.95

5V Step-Up Voltage Regulator U1V10F5

5V Step-Up Voltage Regulator U1V10F5

5V Step-Up/Down Voltage Regulator U1V10F5 This tiny (0.35″×0.45″) U1V10F5 s..

£3.54 Ex Tax: £2.95

5V Step-Up Voltage Regulator U3V50F5

5V Step-Up Voltage Regulator U3V50F5

5V Step-Up Voltage Regulator U3V50F5 This powerful boost regulator efficiently generates an o..

£10.20 Ex Tax: £8.50

Adjustable 4V-12V Step-Up Voltage Regulator U3V50ALV

Adjustable 4V-12V Step-Up Voltage Regulator U3V50ALV

Adjustable 4V-12V Step-Up Voltage Regulator U3V50ALV This powerful boost regulator efficientl..

£11.40 Ex Tax: £9.50

Pololu 3.3V Boost Regulator NCP1402

Pololu 3.3V Boost Regulator NCP1402

Pololu 3.3V Boost Regulator NCP1402 This extremely compact boost regulator generates 3.3V fro..

£4.96 Ex Tax: £4.13

Pololu 5V 5A Step-Down Voltage Regulator D24V50F5

Pololu 5V 5A Step-Down Voltage Regulator D24V50F5

Pololu 5V 5A Step-Down Voltage Regulator D24V50F5 This small synchronous switching step-down ..

£13.38 Ex Tax: £11.15

Pololu 12V, 1A Step-Down Voltage Regulator D24V10F12

Pololu 12V, 1A Step-Down Voltage Regulator D24V10F12

Pololu 12V, 1A Step-Down Voltage Regulator D24V10F12 The compact (0.5″ × 0.7&Prim..

£5.52 Ex Tax: £4.60

5V, 500mA Step-Down Voltage Regulator D24V5F5

5V, 500mA Step-Down Voltage Regulator D24V5F5

5V, 500mA Step-Down Voltage Regulator D24V5F5 The compact (13mm × 10mm × 3mm) D24..

£4.20 Ex Tax: £3.50

Pololu 3.3V, 500mA Step-Down Voltage Regulator D24V5F3

Pololu 3.3V, 500mA Step-Down Voltage Regulator D24V5F3

Pololu 3.3V, 500mA Step-Down Voltage Regulator D24V5F3 The compact (13mm × 10mm ×..

£4.20 Ex Tax: £3.50

Pololu 5V 2.5A Step-Down Voltage Regulator D24V22F5

Pololu 5V 2.5A Step-Down Voltage Regulator D24V22F5

Pololu 5V 2.5A Step-Down Voltage Regulator D24V22F5 This small synchronous switching step-dow..

£6.96 Ex Tax: £5.80

5V Step-Up/Step-Down Voltage Regulator S18V20F5

5V Step-Up/Step-Down Voltage Regulator S18V20F5

5V Step-Up/Step-Down Voltage Regulator S18V20F5 This powerful step-up/step-down regulator eff..

£11.40 Ex Tax: £9.50

4.5-20V Fine-Adjust Step-Up Voltage Regulator U3V70A

4.5-20V Fine-Adjust Step-Up Voltage Regulator U3V70A

4.5-20V Fine-Adjust Step-Up Voltage Regulator U3V70A This powerful synchronous switching boos..

£15.48 Ex Tax: £12.90

Tags: 5V, Step-Up, Step-Down, Voltage, Regulator, S7V7F5, switch mode, supply, Pololu, 2119,