Charge Pumps

Charge pumps are DC to DC converters that are often needed in designs requiring more than one dc supply voltage. Its 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. Theres 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 Price 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
RS Stock No. 889-5339
Mfr. Part No.MCP1257-E/MF
BrandMicrochip
€1.097
Each (In a Tube of 120)
units
Regulated 100mA 650 kHz Surface Mount DFN 10 - 3.15 x 3.15 x 0.95mm 0.95mm 3.15mm 3.6 V +125 °C 3.3 V 1.8 V
RS Stock No. 774-7419
Mfr. Part No.MCP1257-E/MF
BrandMicrochip
€1.31
Each (In a Bag of 5)
units
Regulated 100mA 650 kHz Surface Mount DFN 10 - 3.15 x 3.15 x 0.95mm 0.95mm 3.15mm 3.6 V +125 °C 3.3 V 1.8 V
RS Stock No. 533-3901
Mfr. Part No.LM2623MM/NOPB
€1.37
Each
units
- 2A - Surface Mount MSOP 8 - 3 x 3 x 0.86mm 0.86mm 3mm - +85 °C 14 V -
RS Stock No. 923-1449
Mfr. Part No.ICL7660SIBAZ
€1.307
Each (In a Tube of 98)
units
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
RS Stock No. 921-5591
Mfr. Part No.ICL7660SIBAZ
€1.434
Each (In a Pack of 5)
units
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
RS Stock No. 460-588
Mfr. Part No.MAX660M/NOPB
€1.67
Each (In a Pack of 5)
units
Inverting, Step Up - - Surface Mount SOIC 8 - 4.9 x 3.9 x 1.45mm 1.45mm 4.9mm 5.5 V +85 °C -1.5 V 1.5 V
RS Stock No. 121-8323
Mfr. Part No.MAX660M/NOPB
€1.401
Each (In a Tube of 95)
units
Inverting, Step Up - - Surface Mount SOIC 8 - 4.9 x 3.9 x 1.45mm 1.45mm 4.9mm 5.5 V +85 °C -1.5 V 1.5 V
RS Stock No. 155-7582
Mfr. Part No.LT1054IN8#PBF
€5.498
Each (In a Tube of 50)
units
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 Stock No. 850-7931
Mfr. Part No.ADM8828ARTZ-REEL7
€2.074
Each (In a Pack of 5)
units
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
RS Stock No. 460-544
Mfr. Part No.LMC7660IN/NOPB
€0.964
Each (In a Pack of 10)
units
Inverting - - Through Hole MDIP 8 - 9.27 x 6.35 x 3.3mm 3.3mm 9.27mm 10 V +85 °C -1.5 V 1.5 V
RS Stock No. 822-9925
Mfr. Part No.LT1054IN8#PBF
€8.28
Each
units
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 Stock No. 160-9936
Mfr. Part No.ADM8828ARTZ-REEL7
€1.169
Each (On a Reel of 3000)
units
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
RS Stock No. 920-3615
Mfr. Part No.LM2623MM/NOPB
€0.635
Each (On a Reel of 1000)
units
- 2A - Surface Mount MSOP 8 - 3 x 3 x 0.86mm 0.86mm 3mm - +85 °C 14 V -
RS Stock No. 851-6761
Mfr. Part No.LTC3261IMSE#PBF
€7.05
Each
units
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
RS Stock No. 797-9798
Mfr. Part No.ICL7660EPA+
€3.115
Each (In a Pack of 2)
units
Inverting, Step Up 20mA 10 kHz Through Hole PDIP 8 - 9.91 x 7.87 x 4.45mm 4.45mm 9.91mm 10 V +85 °C - 1.5 V
RS Stock No. 146-0990
Mfr. Part No.MAX881REUB+
€2.831
Each (In a Tube of 50)
units
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
New
RS Stock No. 197-7231
Mfr. Part No.LM2776DBVT
€0.656
Each (On a Reel of 250)
units
- 200mA 2.3 MHz Surface Mount SOT-23 6 - - - - - - - -
RS Stock No. 545-5988
Mfr. Part No.LTC1044CN8#PBF
€3.51
Each
units
Inverting, Step Down, Step Up - - Through Hole PDIP 8 - 10.16 x 6.48 x 3.3mm 3.3mm 10.16mm 9 V +85 °C -1.5 V, 4.5 V 1.5 V
RS Stock No. 156-5692
Mfr. Part No.LTC1983ES6-3#TRMPBF
€2.506
Each (On a Reel of 500)
units
Charge Pump 100mA 900 kHz Surface Mount SOT-23 6 - 2.9 x 1.75 x 0.9mm 0.9mm 2.9mm 5.5 V +85 °C -3.12 V 2.3 V
RS Stock No. 165-9141
Mfr. Part No.MAX660CSA+
€3.432
Each (In a Tube of 100)
units
Inverting, Step Up - - Surface Mount SOIC 8 - 5 x 4 x 1.5mm 1.5mm 5mm 5.5 V +70 °C -1.5 V, 11 V 1.5 V
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