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. 145-9014
Mfr. Part No.TC1044SEPA
BrandMicrochip
$1.157
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. 774-7636
Mfr. Part No.TC1044SEPA
BrandMicrochip
$1.644
Each (In a Bag of 5)
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. 774-7882
Mfr. Part No.TC7660SEPA
BrandMicrochip
$1.702
Each (In a Bag of 5)
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. 159-7436
Mfr. Part No.TC7660SEPA
BrandMicrochip
$0.726
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. 178-4969
Mfr. Part No.TC1044SCPA
BrandMicrochip
$1.18
Each (In a Tube of 60)
units
Charge Pump 20mA 45 kHz Through Hole PDIP 8 - 10.16 x 6.6 x 4.06mm 4.06mm 10.16mm 12 V +70 °C -12 V 3 V
RS Stock No. 823-4006
Mfr. Part No.TC1044SCPA
BrandMicrochip
$1.64
Each (In a Pack of 10)
units
Charge Pump 20mA 45 kHz Through Hole PDIP 8 - 10.16 x 6.6 x 4.06mm 4.06mm 10.16mm 12 V +70 °C -12 V 3 V
RS Stock No. 774-7898
Mfr. Part No.TC962EPA
BrandMicrochip
$5.585
Each (In a Bag of 2)
units
Inverting 80mA 24 kHz Through Hole PDIP 8 - 10.16 x 6.6 x 4.06mm 4.06mm 10.16mm 18 V +85 °C -18 V 3 V
RS Stock No. 165-2030
Mfr. Part No.TC962EPA
BrandMicrochip
$2.617
Each (In a Tube of 60)
units
Inverting 80mA 24 kHz Through Hole PDIP 8 - 10.16 x 6.6 x 4.06mm 4.06mm 10.16mm 18 V +85 °C -18 V 3 V
RS Stock No. 912-2944
Mfr. Part No.MCP1252-33X50I/MS
BrandMicrochip
$1.429
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. 165-4689
Mfr. Part No.MCP1252-ADJI/MS
BrandMicrochip
$1.84
Each (In a Tube of 100)
units
Step Down, Step Up 120mA 650 kHz Surface Mount MSOP 8 - 3 x 3 x 0.85mm 0.85mm 3mm 5.5 V +85 °C 5.5 V 2 V
RS Stock No. 403-727
Mfr. Part No.MCP1252-ADJI/MS
BrandMicrochip
$1.936
Each (In a Pack of 5)
units
Step Down, Step Up 120mA 650 kHz Surface Mount MSOP 8 - 3 x 3 x 0.85mm 0.85mm 3mm 5.5 V +85 °C 5.5 V 2 V
RS Stock No. 207-0297
Mfr. Part No.TC7660CPA
BrandMicrochip
$1.15
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. 146-0207
Mfr. Part No.TC7660SEOA
BrandMicrochip
$0.726
Each (In a Tube of 100)
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
RS Stock No. 872-2464
Mfr. Part No.TC7660CPA
BrandMicrochip
$0.933
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. 774-7888
Mfr. Part No.TC7660SEOA
BrandMicrochip
$1.462
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
RS Stock No. 403-715
Mfr. Part No.MCP1252-33X50I/MS
BrandMicrochip
$2.208
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. 403-604
Mfr. Part No.MCP1253-33X50I/MS
BrandMicrochip
$2.028
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. 144-5828
Mfr. Part No.TC7660EPA
BrandMicrochip
$0.686
Each (In a Tube of 60)
units
Inverting 20mA 10 kHz Through Hole PDIP 8 - 10.16 x 7.62 x 4.45mm 4.45mm 10.16mm 10 V +85 °C -10 V 1.5 V
RS Stock No. 669-6313
Mfr. Part No.TC962COE
BrandMicrochip
$4.285
Each (In a Pack of 2)
units
Inverting 80mA 24 kHz Surface Mount SOIC W 16 - 10.3 x 7.49 x 2.31mm 2.31mm 10.3mm 18 V +70 °C -3 V 3 V
RS Stock No. 466-2876
Mfr. Part No.TC1219ECHTR
BrandMicrochip
$0.75
Each
units
Inverting, Step Up - - Surface Mount SOT-23A 6 - 3.1 x 1.8 x 1.3mm 1.3mm 3.1mm 5.5 V +85 °C -2.5 V, 11 V 2.5 V