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. 178-4969
Mfr. Part No.TC1044SCPA
BrandMicrochip
PHP40.219
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
PHP49.08
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. 159-7436
Mfr. Part No.TC7660SEPA
BrandMicrochip
PHP39.38
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. 774-7882
Mfr. Part No.TC7660SEPA
BrandMicrochip
PHP46.40
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. 774-7888
Mfr. Part No.TC7660SEOA
BrandMicrochip
PHP48.196
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. 403-604
Mfr. Part No.MCP1253-33X50I/MS
BrandMicrochip
PHP73.368
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. 145-9014
Mfr. Part No.TC1044SEPA
BrandMicrochip
PHP40.95
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. 768-1482
Mfr. Part No.TC1240ECHTR
BrandMicrochip
PHP43.05
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 9 V 2.5 V
RS Stock No. 159-6626
Mfr. Part No.TC962COE
BrandMicrochip
PHP127.05
Each (In a Tube of 47)
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. 774-7419
Mfr. Part No.MCP1257-E/MF
BrandMicrochip
PHP76.65
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. 889-5339
Mfr. Part No.MCP1257-E/MF
BrandMicrochip
PHP58.28
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. 738-6269
Mfr. Part No.TC7662BEOA
BrandMicrochip
PHP114.465
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. 774-7400
Mfr. Part No.MCP1256-E/UN
BrandMicrochip
PHP76.65
Each (In a Bag of 5)
units
Regulated 100mA 650 kHz Surface Mount MSOP 10 - 3 x 3 x 0.95mm 0.95mm 3mm 3.6 V +125 °C 3.3 V 1.8 V
RS Stock No. 669-6313
Mfr. Part No.TC962COE
BrandMicrochip
PHP152.88
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. 738-6266
Mfr. Part No.TC7662AEPA
BrandMicrochip
PHP186.64
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. 159-7412
Mfr. Part No.TC7662AEPA
BrandMicrochip
PHP158.03
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. 912-6993
Mfr. Part No.TCM828ECT713
BrandMicrochip
PHP24.888
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. 165-3331
Mfr. Part No.TC1240ECHTR
BrandMicrochip
PHP35.455
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 9 V 2.5 V
RS Stock No. 889-6045
Mfr. Part No.TC7662ACPA
BrandMicrochip
PHP115.50
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 +70 °C -3 V 3 V
RS Stock No. 197-6141
Mfr. Part No.TC962CPA
BrandMicrochip
PHP89.18
Each (In a Tube of 60)
units
Charge Pump 80mA 24 kHz Through Hole PDIP 8 - - - - - - - -