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. 889-5339
Mfr. Part No.MCP1257-E/MF
BrandMicrochip
€0.799
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
€0.828
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. 121-8323
Mfr. Part No.MAX660M/NOPB
€1.326
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. 921-5591
Mfr. Part No.ICL7660SIBAZ
€1.588
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. 850-7931
Mfr. Part No.ADM8828ARTZ-REEL7
€0.936
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. 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. 533-3901
Mfr. Part No.LM2623MM/NOPB
€1.30
Each
units
- 2A - Surface Mount MSOP 8 - 3 x 3 x 0.86mm 0.86mm 3mm - +85 °C 14 V -
RS Stock No. 920-3615
Mfr. Part No.LM2623MM/NOPB
€0.645
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. 460-544
Mfr. Part No.LMC7660IN/NOPB
€0.912
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. 460-588
Mfr. Part No.MAX660M/NOPB
€1.566
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. 160-9936
Mfr. Part No.ADM8828ARTZ-REEL7
€0.912
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. 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. 155-7582
Mfr. Part No.LT1054IN8#PBF
€5.179
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. 145-9014
Mfr. Part No.TC1044SEPA
BrandMicrochip
€0.661
Each (In a Tube of 60)
units
Inverting 20mA 45 kHz Through Hole PDIP 8 - 10.16 x 6.6 x 4.06mm 4.06mm 10.16mm 12 V +85 °C -12 V 1.5 V
RS Stock No. 921-5608
Mfr. Part No.ICL7660AIBAZA
€1.598
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 1.5 V
RS Stock No. 526-763
Mfr. Part No.LT1054CP
€2.706
Each (In a Pack of 5)
units
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 Stock No. 662-4750
Mfr. Part No.LT1054IP
€2.75
Each (In a Pack of 5)
units
Inverting, Step Up - - Through Hole PDIP 8 - 9.81 x 6.35 x 4.57mm 4.57mm 9.81mm 15 V +85 °C - 3.5 V
RS Stock No. 177-7308
Mfr. Part No.LTC1044CS8#PBF
€3.107
Each (In a Tube of 100)
units
Inverting, Step Down/Step Up 200µA 5 kHz Surface Mount SOIC 8 5 V 5.004 x 3.988 x 1.498mm 1.498mm 5mm 9 V +85 °C 3.5 V, 5 V 1.5 V
RS Stock No. 545-6161
Mfr. Part No.LTC1144CS8#PBF
€5.25
Each
units
Step Down - - Surface Mount SOIC 8 - 5 x 3.99 x 1.48mm 1.48mm 5mm 18 V +70 °C -2 V 2 V
RS Stock No. 709-5232
Mfr. Part No.ADM8660ANZ
€3.62
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
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The easy-to-use inductorless Charge Pump ICs from Texas Instruments offer a small-sized, simpler solution with high performance The charge pump or switched-capacitor converter is an alternative solution to inductive DC-DC converters and delivers higher efficiency than Low Dropout (LDO) regulators. ...
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The easy-to-use inductorless Charge Pump ICs from Texas Instruments offer a small-sized, simpler solution with high performance The charge pump or switched-capacitor converter is an alternative solution to inductive DC-DC converters and delivers higher efficiency than Low Dropout (LDO) regulators. ...
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The easy-to-use inductorless Charge Pump ICs from Texas Instruments offer a small-sized, simpler solution with high performance The charge pump or switched-capacitor converter is an alternative solution to inductive DC-DC converters and delivers higher efficiency than Low Dropout (LDO) regulators. ...