S8V3A Step-up/Step-down adjustable converter
S8V3A Step-up/Step-down adjustable converter
S8V3A Step-up/Step-down adjustable converter
S8V3A Step-up/Step-down adjustable converter
S8V3A Step-up/Step-down adjustable converter
S8V3A Step-up/Step-down adjustable converter
S8V3A Step-up/Step-down adjustable converter
S8V3A Step-up/Step-down adjustable converter
S8V3A Step-up/Step-down adjustable converter
S8V3A Step-up/Step-down adjustable converter
S8V3A Step-up/Step-down adjustable converter - zdjęcie 1
S8V3A Step-up/Step-down adjustable converter - zdjęcie 2
S8V3A Step-up/Step-down adjustable converter - zdjęcie 3
S8V3A Step-up/Step-down adjustable converter - zdjęcie 4
S8V3A Step-up/Step-down adjustable converter - zdjęcie 5
S8V3A Step-up/Step-down adjustable converter - zdjęcie 6
S8V3A Step-up/Step-down adjustable converter - zdjęcie 7
S8V3A Step-up/Step-down adjustable converter - zdjęcie 8
S8V3A Step-up/Step-down adjustable converter - zdjęcie 9
S8V3A Step-up/Step-down adjustable converter - zdjęcie 10

Pololu S8V3A - step-up / step-down converter adjustable 2-12V 0.3A

Index: PLL-00754

Step-up/step-down converter with adjustable output voltage from 2 V - 12 V. Maximum current 300 mA. Power supply 1.5 V - 16 V.

€8.58
€6.98 tax excl.

Unavailable
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Manufacturer: Pololu

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Specification

  • Input voltage: 1.5 V to 16 V

  • Output voltage adjustable: 2 V to 12 V

  • Frequency of operation: 1.5 MHz

  • Maximum current: 300 mA

  • Small dimensions: 17.8 x 10.1 x 3.8 mm

  • Weight (without connectors): 1 g

Main features

The output voltage can be higher, lower or equal to the supply voltage.

The system can be set to automatically switch off at a preset voltage.

Adjustable output voltage from 2 V - 12 V.

Integrated temperature protection system.

Small dimensions: 17.8 x10.1 x 3.8 mm.

The large input voltage range and flexibility of the output voltage make the module very well suited as a stabilizer for battery-powered systems. It is easy to obtain the required voltage value, higher or lower than the power supply. For example, when 5V or 3.3V is required in a single Li-pol cell system (3.7V) during the entire battery life cycle.

Downloads

The module has four outputs:

  • VIN - input voltage from 1.5 V - 16 V.
    If the lower module does not switch on, the higher one can damage the system.
  • GND - ground potential
  • VOUT - output voltage adjustable from
    2V to 12V
  • SHDN - system shutdown - low state, which makes the system go into low power consumption state. The output is pulled to the VIN via a 10 kΩ resistor, which makes the system switched on by default.

The connectors are properly signed on the board.Outputs are 2.54 mm (popular goldpin connectors). The module can be plugged into a contact board , connected with wires or soldered into a dedicated PCB.

On customer's request, we can deliver a chip with goldpin connectors soldered. For this purpose, please leave the information in the commentary to the order.

Automatic shutdown

If the voltage on the SHDN output drops below 1.1V, the regulator will switch off automatically. The SHDN pin is pulled to VCC by a 130kOm resistor. By adding a pull-off resistor to the ground (GND), the threshold voltage at which the system will switch off can be adjusted. The resistor is calculated as follows:

Where VOFF is the voltage at which the controller is to switch off automatically.

Output voltage selection

The output voltage is set using a potentiometer. Turning clockwise increases the voltage.

Fig. 1: Selection of the output voltage.

The output voltage must not exceed twice the value of the set output voltage. For example, if the output voltage is set to 6V, the input must not exceed 12V.

System efficiency

Efficiency is defined as the ratio of input power to output power (Pout/Pin). This parameter is particularly important for battery operation when it is important to keep the system running as long as possible on a single charge. The efficiency of the inverter depends on the flowing current and the input voltage (graph below). On average, it is at the level of 70-80%, which allows to use practically maximum energy from the battery.

Fig.2: Efficiency for 3.3V output voltage.

Fig.3: Efficiency for 5V output voltage.

Fig. 4: Efficiency for output voltage 9V.

Fig. 5: Efficiency for output voltage 12V.

Voltage jumps (pins)

In electronic circuits the starting current may cause the occurrence of so-called pins, i.e. sudden voltage surges to a value above a set level. If the amplitude of the pins exceeds the permissible value of the regulator, it can be destroyed. Therefore, if the system is supplied with voltage above 10V or the load is high inductance, we recommend to solder a capacitor of 33uF/25V or higher as close to the circuit as possible between VIN and GND.

Current 0.3 A
Stabilizer - Type2 switching
Stabilizer - Type step-up/down

Same day shipping

Posting the payment for the order on our account on a business day up to 10 AM means sending the goods on the same day!

The time of payment depends on the ELIXIR's hours session of the sender's bank and the recipient of the transfer. It may take up to 2-4 working days.

Free delivery for orders exceeding 300 PLN!

Only for prepaid orders shipped to Poland.

Terms of delivery outside of Poland

GLS - zone 1

Austria, Belgium, Croatia, The Czech Republic, Denmark, Germany, Netherlands, Slovakia

  • Delivery time: 2-4 days
  • Delivery cost: 35 PLN
  • Insurance: 5000 PLN
GLS - zone 2

Bulgaria, Estonia, France, Hungary, Italy, Latvia, Lithuania, Luxembourg, Portugal, Romania, Slovenia

  • Delivery time: 2-5 days
  • Delivery cost: 50 PLN
  • Insurance: 5000 PLN
Kurier GLS - zone 3

Finland, Greece, Ireland, Sweden, Cyprus, Malta, Spain

  • Delivery time: 2-7 days
  • Delivery cost: 80 PLN
  • Insurance: 5000 PLN

Terms of delivery in Poland

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Poczta Polska
  • Delivery time: 1-3 days
  • Payment in advance: od 9,90 PLN
  • Cash on delivery: 17,90 PLN
  • Insurance: 1000 PLN
Card image cap
Kurier GLS
  • Delivery time: 1-2 days
  • Payment in advance: od 14,90 PLN
  • Cash on delivery: 22,90 PLN
  • Insurance: 6000 PLN
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Paczkomaty 24/7
  • Delivery time: 1-3 days
  • Payment in advance: od 12,90 PLN
  • Over 8000 parcel lockers
  • Insurance: 200 PLN
  • Free delivery of orders over 300 PLN does not apply to parcels addressed outside of Poland.
  • The delivery period is counted in working days from the date of dispatch of the order.

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