Charge Pump Voltage Inverter: 1.8-5.3V, 60mA
This board is a charge pump voltage inverter that converts an input voltage between 1.8 V and 5.3 V to a corresponding negative output voltage, with a typical efficiency of over 80%. The inverter can deliver a continuous output current of 60 mA across most of its operating range, making it a simple solution for applications requiring a lower-power negative supply, including sensor biasing and bipolar op-amp circuits.
Unlike a voltage regulator, which produces a constant output voltage from a range of input voltages, this inverter does not have a set output voltage; the module’s negative output voltage varies proportionally to the positive input voltage that it receives. However, you can get a regulated negative voltage by powering the inverter with a pre-regulated supply voltage. For example, with a fixed 5 V supply, the module produces a fixed −5 V on its output; with a 3.3 V input, the output is −3.3 V. Note that the magnitude of the output voltage decreases as the output current increases.
Quick Spec
- Minimum Operating Voltage: 1.8V
- Maximum Operating Voltage: 5.3V
- Maximum Output Current: 60mA
- No Reverse Voltage Protection
- Dimensions: 7.6 x 8.9mm
- Net Weight: 1g
Typical Efficiency and Output Current
The efficiency of this inverter, defined as (Power out)/(Power in), is an important measure of its performance, especially when battery life or heat are concerns. As shown in the graph below, this voltage converter typically has an efficiency of 80% to 90%.
The maximum achievable output current is at least 60 mA continuous across most of the voltage inverter’s operating range, but at input voltages below about 2.2 V, the available output current is reduced (down to about 40 mA at 1.8 V in).
Output Voltage Drop
The output voltage of this inverter is not regulated; it is close to the exact negative of the input voltage when the output current is low, but as the load increases, the magnitude of the output voltage decreases (the output voltage rises toward 0 V) as shown in the graph below.
Resources
Shipping List
- 1 x Charge Pump Voltage Inverter: 1.8-5.3V, 60mA
Charge Pump Voltage Inverter: 1.8-5.3V, 60mA
- Brand: Pololu Electronics
- Product Code: 2839
- Weight: 0.001kg
- Product Status : Active
Stock
| Warehouse | Stock Status | Location |
|---|---|---|
| Centurion | No Stock | |
| Stellenbosch | No Stock |
We ship free of charge between branches to complete your order.
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R58.00 (Inc Tax: R66.70)
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Tags: charge, pump, voltage, inverter, 1.8v, 5.3v, 60ma, convert, negative