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. 912-6993
Mfr. Part No.TCM828ECT713
BrandMicrochip
R 5.308
Each (On a Reel of 3000)
units
Voltage 25mA 12 kHz Surface Mount SOT-23 5 1.5 → 5.5 V 3.1 x 1.8 x 1.3mm 1.3mm 3.1mm 5.5 V +85 °C 6 V 1.5 V
RS stock no. 823-0852
Mfr. Part No.TCM828ECT713
BrandMicrochip
R 6.297
Each (In a Pack of 20)
units
Voltage 25mA 12 kHz Surface Mount SOT-23 5 1.5 → 5.5 V 3.1 x 1.8 x 1.3mm 1.3mm 3.1mm 5.5 V +85 °C 6 V 1.5 V
RS stock no. 768-1473
Mfr. Part No.TC1240AECHTR
BrandMicrochip
R 10.606
Each (In a Pack of 10)
units
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 stock no. 165-3329
Mfr. Part No.TC1240AECHTR
BrandMicrochip
R 9.128
Each (On a Reel of 3000)
units
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 stock no. 159-7412
Mfr. Part No.TC7662AEPA
BrandMicrochip
R 44.279
Each (In a Tube of 60)
units
Inverting 40mA 12 kHz Through Hole PDIP 8 - 10.16 x 6.6 x 4.06mm 4.06mm 10.16mm 18 V +85 °C - 3 V
RS stock no. 738-6266
Mfr. Part No.TC7662AEPA
BrandMicrochip
R 73.23
Each
units
Inverting 40mA 12 kHz Through Hole PDIP 8 - 10.16 x 6.6 x 4.06mm 4.06mm 10.16mm 18 V +85 °C - 3 V
RS stock no. 912-6990
Mfr. Part No.TC7662BEOA
BrandMicrochip
R 24.477
Each (In a Tube of 100)
units
Inverting 20mA 35 kHz Surface Mount SOIC 8 - 4.9 x 3.91 x 1.42mm 1.42mm 4.9mm 15 V +85 °C - 1.5 V
RS stock no. 738-6269
Mfr. Part No.TC7662BEOA
BrandMicrochip
R 33.035
Each (In a Pack of 2)
units
Inverting 20mA 35 kHz Surface Mount SOIC 8 - 4.9 x 3.91 x 1.42mm 1.42mm 4.9mm 15 V +85 °C - 1.5 V
RS stock no. 821-1227
Mfr. Part No.TC7662BEOA713
BrandMicrochip
R 24.454
Each (On a Reel of 3300)
units
Charge Pump 20mA 35 kHz Surface Mount SOIC 8 - 5 x 3.99 x 1.5mm 1.5mm 5mm 15 V +85 °C -15 V 1.5 V
RS stock no. 207-0297
Mfr. Part No.TC7660CPA
BrandMicrochip
R 11.94
Each
units
- - - Through Hole PDIP 8 - 10.16 x 6.6 x 4.06mm 4.06mm 10.16mm - +70 °C 10 V -
RS stock no. 821-1236
Mfr. Part No.TC962CPA
BrandMicrochip
R 35.408
Each (In a Tube of 60)
units
Charge Pump 80mA 24 kHz Through Hole PDIP 8 - 10.16 x 6.6 x 4.06mm 4.06mm 10.16mm 18 V +70 °C -3 V 3 V
RS stock no. 872-2464
Mfr. Part No.TC7660CPA
BrandMicrochip
R 9.732
Each (In a Tube of 60)
units
- - - Through Hole PDIP 8 - 10.16 x 6.6 x 4.06mm 4.06mm 10.16mm - +70 °C 10 V -
RS stock no. 772-8792
Mfr. Part No.MCP1259-E/MF
BrandMicrochip
R 29.008
Each (In a Tube of 5)
units
Charge Pump 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. 403-715
Mfr. Part No.MCP1252-33X50I/MS
BrandMicrochip
R 20.226
Each (In a Pack of 5)
units
Step Down, Step Up 150mA 650 kHz Surface Mount MSOP 8 - 3 x 3 x 0.85mm 0.85mm 3mm 5.5 V +85 °C - 2.1 V
RS stock no. 912-2944
Mfr. Part No.MCP1252-33X50I/MS
BrandMicrochip
R 15.192
Each (In a Tube of 100)
units
Step Down/Step Up 150mA 650 kHz Surface Mount MSOP 8 - 3 x 3 x 0.85mm 0.85mm 3mm 5.5 V +85 °C - 2.1 V
RS stock no. 145-9014
Mfr. Part No.TC1044SEPA
BrandMicrochip
R 11.433
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. 403-604
Mfr. Part No.MCP1253-33X50I/MS
BrandMicrochip
R 20.226
Each (In a Pack of 5)
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. 159-7436
Mfr. Part No.TC7660SEPA
BrandMicrochip
R 11.054
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. 889-5339
Mfr. Part No.MCP1257-E/MF
BrandMicrochip
R 13.571
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. 774-7888
Mfr. Part No.TC7660SEOA
BrandMicrochip
R 13.328
Each (In a Bag of 5)
units
Inverting 20mA 45 kHz Surface Mount SOIC 8 - 5 x 3.99 x 1.5mm 1.5mm 5mm 12 V +85 °C -12 V 1.5 V