Charge Pumps

Charge pumps are DC to DC converters that are often needed in designs requiring more than one dc supply voltage. It’s made up of switches and capacitors. The switches are usually diodes in discrete designs but are also MOSFETs in IC versions. The capacitors are electrolytic or ceramics depending on the switching speed. There’s no need for an inductor. Charge pumps can double, triple, halve voltages but they can also invert or scale voltages. They are commonly used in low-power electronic devices to suit a voltage for different parts of the circuit.
Charge Pumps have a few advantages over the majority of other types of DC-DC converters and they are:
• Simplicity in build
• Lower cost of production
• Fewer components
• No inductor
• Higher efficiency than linear

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Description Prix Converter Type Maximum Output Current Maximum Switching Frequency Mounting Type Package Type Pin Count Typical Operating Supply Voltage Dimensions Height Length Maximum Operating Supply Voltage Maximum Operating Temperature Maximum Output Voltage Minimum Operating Supply Voltage
N° de stock RS 533-3901
Référence fabricantLM2623MM/NOPB
1,30 €
Each
Unité
- 2A - Surface Mount MSOP 8 - 3 x 3 x 0.86mm 0.86mm 3mm - +85 °C 14 V -
N° de stock RS 622-8923
Référence fabricantMAX662ACPA+
3,11 €
Each
Unité
Step Up - - Through Hole PDIP 8 - 9.91 x 7.87 x 4.45mm 4.45mm 9.91mm 5.5 V +70 °C - 4.5 V
Nouveau
N° de stock RS 208-8554
Référence fabricantLM2776DBVR
0,744 €
Each (In a Pack of 10)
Unité
Charge Pump 200mA 2 MHz Surface Mount SOT-23 6 - - - - - - - -
Nouveau
N° de stock RS 208-8553
Référence fabricantLM2776DBVR
0,403 €
Each (On a Reel of 3000)
Unité
Charge Pump 200mA 2 MHz Surface Mount SOT-23 6 - - - - - - - -