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 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. 769-5416
Mfr. Part No.SP6661EN-L
BrandMaxLinear
kr 15,055
Each (In a Pack of 2)
Units
Inverting, Voltage Doubler 200mA 1250 kHz Surface Mount SOIC 8 5 V 4.9 x 3.9 x 1.65mm 1.65mm 4.9mm 5.3 V +85 °C -5 V, 10 V 1.5 V
RS Stock No. 170-4505
Mfr. Part No.SP6661EN-L
BrandEXAR
kr 11,866
Each (In a Tube of 98)
Units
Inverting, Voltage Doubler 200mA 1250 kHz Surface Mount SOIC 8 5 V 4.9 x 3.9 x 1.65mm 1.65mm 4.9mm 5.3 V +85 °C -5 V, 10 V 1.5 V
RS Stock No. 923-1430
Mfr. Part No.ICL7660ACPAZ
kr 11,932
Each (In a Tube of 50)
Units
Inverting, Step Up - - Through Hole PDIP 8 - 10.16 x 7.11 x 4.95mm 4.95mm 10.16mm 12 V +70 °C -1.5 V 1.5 V
RS Stock No. 545-5988
Mfr. Part No.LTC1044CN8#PBF
kr 34,99
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. 460-544
Mfr. Part No.LMC7660IN/NOPB
kr 8,883
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. 921-5598
Mfr. Part No.ICL7660ACPAZ
kr 14,316
Each (In a Pack of 5)
Units
Inverting, Step Up - - Through Hole PDIP 8 - 10.16 x 7.11 x 4.95mm 4.95mm 10.16mm 12 V +70 °C -1.5 V 1.5 V
RS Stock No. 761-8945
Mfr. Part No.LTC1144IS8#PBF
kr 61,61
Each
Units
Charge Pump, Regulated 4µA - Surface Mount SOIC 8 - 5.004 x 3.988 x 1.752mm 1.752mm 5mm 18 V +85 °C -18 V 2 V
RS Stock No. 145-6358
Mfr. Part No.LTC1044CN8#PBF
kr 23,276
Each (In a Tube of 50)
Units
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 -
RS Stock No. 704-4482
Mfr. Part No.ICL7660ACPAZ
kr 15,832
Each (In a Pack of 5)
Units
Inverting, Step Up - - Through Hole PDIP 8 - 10.16 x 7.11 x 4.95mm 4.95mm 10.16mm 12 V +70 °C -1.5 V 1.5 V
RS Stock No. 177-7265
Mfr. Part No.LTC1144IS8#PBF
kr 39,267
Each (In a Tube of 100)
Units
Charge Pump, Regulated 4µA - Surface Mount SOIC 8 - 5.004 x 3.988 x 1.752mm 1.752mm 5mm 18 V +85 °C -18 V 2 V
RS Stock No. 921-5866
Mfr. Part No.ICL7660CBAZA
kr 6,60
Each (In a Pack of 5)
Units
Inverting, Step Up - - Surface Mount SOIC 8 - 5 x 4 x 1.5mm 1.5mm 5mm 10 V +70 °C -1.5 V 1.5 V
RS Stock No. 165-9256
Mfr. Part No.MAX680ESA+
kr 34,108
Each (In a Tube of 100)
Units
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
RS Stock No. 100-3887
Mfr. Part No.LM2665M6/NOPB
kr 3,998
Each (On a Reel of 1000)
Units
Step Up - - Surface Mount SOT-23 6 - 2.92 x 1.6 x 1.02mm 1.02mm 2.92mm 5.5 V +85 °C 11 V 2.5 V
RS Stock No. 162-4400
Mfr. Part No.TPS60243DGKT
kr 7,884
Each (On a Reel of 250)
Units
Step Up - - Surface Mount MSOP 8 - 3 x 3 x 0.97mm 0.97mm 3mm 5.5 V +85 °C - 1.8 V
RS Stock No. 889-5572
Mfr. Part No.MCP1253-33X50I/MS
BrandMicrochip
kr 10,522
Each (In a Tube of 100)
Units
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
RS Stock No. 622-8759
Mfr. Part No.MAX1044CSA+
kr 23,33
Each
Units
Inverting, Step Up - - Surface Mount SOIC 8 - 5 x 4 x 1.5mm 1.5mm 5mm 10 V +70 °C -1.5 V, 20 V 1.5 V
RS Stock No. 189-6907
Mfr. Part No.ICL7660CSA+
kr 14,783
Each (In a Tube of 100)
Units
Inverting, Step Up - - Surface Mount SOIC 8 - 5 x 4 x 1.5mm 1.5mm 5mm 10 V +70 °C -1.5 V, 20 V 1.5 V
RS Stock No. 190-0328
Mfr. Part No.MAX619CSA+
kr 32,18
Each (In a Pack of 2)
Units
Step Up - - Surface Mount SOIC 8 - 5 x 4 x 1.5mm 1.5mm 5mm 3.6 V +70 °C - 2 V
RS Stock No. 709-5232
Mfr. Part No.ADM8660ANZ
kr 36,09
Each
Units
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
RS Stock No. 145-5866
Mfr. Part No.LTC3261EMSE#PBF
kr 39,478
Each (In a Tube of 37)
Units
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
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