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 403-604
Référence fabricantMCP1253-33X50I/MS
MarqueMicrochip
1,154 €
Each (In a Pack of 5)
Unité
Step Down/Step Up 120mA 1 MHz Surface Mount MSOP 8 - 3 x 3 x 0.85mm 0.85mm 3mm 5.5 V +85 °C - 2.1 V
N° de stock RS 189-6916
Référence fabricantMAX1044EPA+
1,893 €
Each (In a Tube of 50)
Unité
Inverting 200µA 5 kHz Through Hole PDIP 8 30 V 9.91 x 7.87 x 4.45mm 4.45mm 9.91mm 200 V +150 °C 10 V -
N° de stock RS 177-7147
Référence fabricantLTC3200EMS8#PBF
2,38 €
Each (In a Tube of 50)
Unité
Step Up - - Surface Mount MSOP 8 - 3 x 3 x 0.86mm 0.86mm 3mm 4.5 V +85 °C 5.5 V 2.7 V
N° de stock RS 662-4093
Référence fabricantTPS60403DBVR
0,754 €
Each (In a Pack of 5)
Unité
Inverting - - Surface Mount SOT-23 5 - 2.9 x 1.6 x 1.15mm 1.15mm 2.9mm 5.25 V +125 °C -1.6 V 1.8 V
N° de stock RS 822-6792
Référence fabricantLTC3203EDD-1#PBF
4,265 €
Each (In a Pack of 2)
Unité
Step Up 500mA 1 MHz Surface Mount DFN 10 2.7 → 5.5 V 3 x 3 x 0.7mm 0.7mm 3mm 5.5 V +85 °C 4.5 V 2.7 V
N° de stock RS 145-6358
Référence fabricantLTC1044CN8#PBF
2,335 €
Each (In a Tube of 50)
Unité
Inverting, Step Down, Step Up - - Through Hole PDIP 8 - 10.16 x 6.48 x 3.3mm 3.3mm 10.16mm - +85 °C -1.5 V, 4.5 V -
N° de stock RS 779-8984
Référence fabricantLT1054CS8#PBF
5,99 €
Each (In a Pack of 2)
Unité
Inverting 100mA 25 kHz Surface Mount SOIC 8 - - 1.498mm 5mm 15 V +100 °C - 3.5 V
N° de stock RS 732-7680
Référence fabricantMAX1680ESA+
4,37 €
Each
Unité
Inverting, Step Up 125mA 348 kHz Surface Mount SOIC 8 2 → 5.5 V 5 x 4 x 1.5mm 1.5mm 5mm 5.5 V +85 °C -3.75 V 2 V
N° de stock RS 709-5232
Référence fabricantADM8660ANZ
3,62 €
Each
Unité
Inverting - - Through Hole PDIP 8 - 9.27 x 7.24 x 3.43mm 3.43mm 9.27mm 7 V +85 °C -1.5 V 1.5 V
N° de stock RS 145-5866
Référence fabricantLTC3261EMSE#PBF
3,96 €
Each (In a Tube of 37)
Unité
Inverting 100mA 550 kHz Surface Mount MSOP 12 4.5 → 32 V 4.039 x 3 x 0.86mm 0.86mm 4.04mm 32 V +150 °C -32 V 4.5 V
N° de stock RS 732-6839
Référence fabricantMAX680ESA+
4,72 €
Each
Unité
Inverting, Step Up 10mA 8 kHz Surface Mount SOIC 8 1.5 → 1.6 V 5 x 4 x 1.5mm 1.5mm 5mm 6 V +85 °C - 2 V
N° de stock RS 912-7211
Référence fabricantADM660ARZ
3,872 €
Each (In a Tube of 98)
Unité
Inverting, Step Up - - Surface Mount SOIC 8 - 5 x 4 x 1.5mm 1.5mm 5mm 7 V +85 °C 1.7 V, 14 V 1.5 V
N° de stock RS 851-6752
Référence fabricantLTC3261EMSE#PBF
6,15 €
Each
Unité
Inverting 100mA 550 kHz Surface Mount MSOP 12 4.5 to 32 V 4.039 x 3 x 0.86mm 0.86mm 4.04mm 32 V +150 °C -32 V 4.5 V
N° de stock RS 165-4689
Référence fabricantMCP1252-ADJI/MS
MarqueMicrochip
0,964 €
Each (In a Tube of 100)
Unité
Step Down, Step Up 120mA 650 kHz Surface Mount MSOP 8 - 3 x 3 x 0.85mm 0.85mm 3mm 5.5 V +85 °C 5.5 V 2 V
N° de stock RS 189-7016
Référence fabricantMAX870EUK+T
2,154 €
Each (On a Reel of 2500)
Unité
Inverting 50mA 125 kHz Surface Mount SOT-23 5 1 V 3 x 3 x 1.3mm 1.3mm 3mm 5.5 V +85 °C -1.4 V 1.4 V
N° de stock RS 160-9936
Référence fabricantADM8828ARTZ-REEL7
0,915 €
Each (On a Reel of 3000)
Unité
Voltage 50mA 190 kHz Surface Mount SOT-23 6 - 3.1 x 1.8 x 1.3mm 1.3mm 3.1mm 5.5 V +85 °C -5.5 V 1.5 V
N° de stock RS 178-4969
Référence fabricantTC1044SCPA
MarqueMicrochip
0,661 €
Each (In a Tube of 60)
Unité
Charge Pump 20mA 45 kHz Through Hole PDIP 8 - 10.16 x 6.6 x 4.06mm 4.06mm 10.16mm 12 V +70 °C -12 V 3 V
N° de stock RS 921-5591
Référence fabricantICL7660SIBAZ
1,588 €
Each (In a Pack of 5)
Unité
Inverting, Step Up - - Surface Mount SOIC 8 - 5 x 4 x 1.5mm 1.5mm 5mm 12 V +85 °C -1.5 V, 22.8 V 1.5 V
N° de stock RS 162-8195
Référence fabricantLM2660MM/NOPB
0,606 €
Each (On a Reel of 1000)
Unité
Inverting 100mA 80 kHz Surface Mount VSSOP 8 1.5 → 5.5 V 3.1 x 3.1 x 0.95mm 0.95mm 3.1mm 5.5 V +85 °C 5 V 1.5 V
N° de stock RS 165-3329
Référence fabricantTC1240AECHTR
MarqueMicrochip
0,584 €
Each (On a Reel of 3000)
Unité
Voltage Doubler 50mA 125 kHz Surface Mount SOT-23 6 3.25 V 3.1 x 1.75 x 1.3mm 1.3mm 3.1mm 4 V +85 °C 11.6 V 2.5 V