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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Omschrijving Prijs 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
Nieuw
RS-stocknr. 197-7231
FabrikantnummerLM2776DBVT
0,656 €
Each (On a Reel of 250)
Aantal stuks
- 200mA 2.3 MHz Surface Mount SOT-23 6 - - - - - - - -
RS-stocknr. 190-0108
FabrikantnummerICL7662CBD+
FabrikantMaxim Integrated
3,49 €
Each (In a Pack of 5)
Aantal stuks
Inverting 20mA 10 kHz Surface Mount SOIC 14 4.5 → 20 V 8.737 x 4.013 x 1.55mm 1.55mm 8.74mm 20 V +70 °C -4.5 V 4.5 V
RS-stocknr. 774-7876
FabrikantnummerTC7660EPA
FabrikantMicrochip
0,70 €
Each (In a Bag of 5)
Aantal stuks
Inverting 20mA 10 kHz Through Hole PDIP 8 - 0.4 x 0.3 x 0.175in 4.45mm 10.16mm 10 V +85 °C -10 V 1.5 V
RS-stocknr. 662-4093
FabrikantnummerTPS60403DBVR
0,896 €
Each (In a Pack of 5)
Aantal stuks
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
RS-stocknr. 146-1288
FabrikantnummerMAX1044CPA+
FabrikantMaxim Integrated
1,592 €
Each (In a Tube of 50)
Aantal stuks
Inverting 200µA 5 kHz Through Hole PDIP 8 30 V 9.91 x 7.87 x 4.45mm 4.45mm 9.91mm 200 V +70 °C 10 V -
RS-stocknr. 779-8987
FabrikantnummerLT1054IS8#PBF
FabrikantAnalog Devices
9,64 €
Each
Aantal stuks
Inverting 100mA 25 kHz Surface Mount SOIC 8 - - 1.498mm 5mm 15 V +100 °C - 3.5 V
RS-stocknr. 774-7400
FabrikantnummerMCP1256-E/UN
FabrikantMicrochip
1,31 €
Each (In a Bag of 5)
Aantal stuks
Regulated 100mA 650 kHz Surface Mount MSOP 10 - 3 x 3 x 0.95mm 0.95mm 3mm 3.6 V +125 °C 3.3 V 1.8 V
RS-stocknr. 207-0281
FabrikantnummerTC7660COA
FabrikantMicrochip
0,71 €
Each
Aantal stuks
- - - Surface Mount SOIC 8 - 4.9 x 3.91 x 1.42mm 1.42mm 4.9mm - +70 °C 10 V -
RS-stocknr. 190-0278
FabrikantnummerMAX660ESA+
FabrikantMaxim Integrated
6,06 €
Each
Aantal stuks
Inverting, Step Up 100mA - Surface Mount SOIC 8 - 5 x 4 x 1.5mm 1.5mm 5mm 5.5 V +85 °C - 1.5 V
RS-stocknr. 190-0085
FabrikantnummerICL7662CBA+
FabrikantMaxim Integrated
3,758 €
Each (In a Pack of 5)
Aantal stuks
Inverting, Step Up - - Surface Mount SOIC 8 - 5 x 4 x 1.5mm 1.5mm 5mm 20 V +70 °C -4.5 V 4.5 V
RS-stocknr. 422-211
FabrikantnummerTPS60243DGKT
1,41 €
Each (In a Pack of 5)
Aantal stuks
Step Up - - Surface Mount MSOP 8 - 3 x 3 x 0.97mm 0.97mm 3mm 5.5 V +85 °C - 1.8 V
RS-stocknr. 146-0990
FabrikantnummerMAX881REUB+
FabrikantMaxim Integrated
2,738 €
Each (In a Tube of 50)
Aantal stuks
Inverting - - Surface Mount μMAX 10 - 3.05 x 3.05 x 0.95mm 0.95mm 3.05mm 5.5 V +85 °C -0.5 V 2.5 V
RS-stocknr. 822-6792
FabrikantnummerLTC3203EDD-1#PBF
FabrikantAnalog Devices
4,265 €
Each (In a Pack of 2)
Aantal stuks
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
RS-stocknr. 526-763
FabrikantnummerLT1054CP
2,758 €
Each (In a Pack of 5)
Aantal stuks
Inverting, Step Up - - Through Hole PDIP 8 - 9.81 x 6.35 x 4.57mm 4.57mm 9.81mm 15 V +70 °C - 3.5 V
RS-stocknr. 768-1473
FabrikantnummerTC1240AECHTR
FabrikantMicrochip
0,737 €
Each (In a Pack of 10)
Aantal stuks
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
RS-stocknr. 822-9925
FabrikantnummerLT1054IN8#PBF
FabrikantAnalog Devices
8,28 €
Each
Aantal stuks
Bi-Polar, Monolithic 100mA 40 kHz Through Hole PDIP 8 3.5 → 15 V 10.16 x 6.477 x 3.302mm 3.302mm 10.16mm 15 V +100 °C 15 V 3.5 V
RS-stocknr. 162-4398
FabrikantnummerTPS60122PWP
1,359 €
Each (In a Tube of 70)
Aantal stuks
Step Up - - Surface Mount HTSSOP 20 - 6.5 x 4.4 x 1.15mm 1.15mm 6.5mm 3.6 V +85 °C - 1.8 V
RS-stocknr. 732-7642
FabrikantnummerICL7662CPA+
FabrikantMaxim Integrated
4,56 €
Each
Aantal stuks
Inverting 20mA 10 kHz Through Hole PDIP 8 4.5 to 20 V 10.033 x 6.35 x 3.302mm 3.302mm 10.03mm 20 V +70 °C -4.5 V 4.5 V
RS-stocknr. 121-8416
FabrikantnummerTPS60400DBVT
0,566 €
Each (On a Reel of 250)
Aantal stuks
Inverting, Step Down/Step Up - - 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
RS-stocknr. 824-6778
FabrikantnummerLM2660MM/NOPB
1,404 €
Each (In a Pack of 5)
Aantal stuks
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
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