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 Prix 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
N° de stock RS 786-1300
Référence fabricantMAX889RESA+
3,635 €
Each (In a Pack of 2)
Unité
Inverting 200mA 0.62 MHz Surface Mount SOIC 8 - 5 x 4 x 1.5mm 1.5mm 5mm 5.5 V +85 °C -5.5 V 2.7 V
Nouveau
N° de stock RS 197-7231
Référence fabricantLM2776DBVT
0,656 €
Each (On a Reel of 250)
Unité
- 200mA 2.3 MHz Surface Mount SOT-23 6 - - - - - - - -
N° de stock RS 738-6269
Référence fabricantTC7662BEOA
MarqueMicrochip
1,995 €
Each (In a Pack of 2)
Unité
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
N° de stock RS 190-0321
Référence fabricantMAX868EUB+
2,478 €
Each (In a Pack of 5)
Unité
Inverting 35mA 450 kHz Surface Mount μMAX 10 1.8 → 5.5 V 3.15 x 3.15 x 0.94mm 0.94mm 3.15mm 5.5 V +85 °C -3.6 V 1.8 V
N° de stock RS 190-0303
Référence fabricantMAX662ACSA+
3,735 €
Each (In a Pack of 2)
Unité
Step Up - - Surface Mount SOIC 8 - 5 x 4 x 1.5mm 1.5mm 5mm 5.5 V +70 °C - 4.5 V
N° de stock RS 165-3329
Référence fabricantTC1240AECHTR
MarqueMicrochip
0,618 €
Each (On a Reel of 3000)
Unité
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
N° de stock RS 732-7699
Référence fabricantMAX1681ESA+
4,68 €
Each
Unité
Inverting, Step Up 125mA 1490 kHz Surface Mount SOIC 8 2 → 5.5 V 5 x 4 x 1.5mm 1.5mm 5mm 5.5 V +85 °C -3.75 V 2 V
N° de stock RS 145-6566
Référence fabricantTPS60402DBVT
0,507 €
Each (On a Reel of 250)
Unité
Inverting, Step Down, Step Up - - Surface Mount SOT-23 5 - 2.9 x 1.6 x 1.15mm 1.15mm 2.9mm 5.25 V +125 °C -1.6 V 1.8 V
N° de stock RS 774-7400
Référence fabricantMCP1256-E/UN
MarqueMicrochip
1,31 €
Each (In a Bag of 5)
Unité
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
Nouveau
N° de stock RS 197-7233
Référence fabricantLM2776DBVT
0,857 €
Each (In a Pack of 10)
Unité
- 200mA 2.3 MHz Surface Mount SOT-23 6 - - - - - - - -
N° de stock RS 545-5988
Référence fabricantLTC1044CN8#PBF
3,51 €
Each
Unité
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
N° de stock RS 144-5828
Référence fabricantTC7660EPA
MarqueMicrochip
0,576 €
Each (In a Tube of 60)
Unité
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
N° de stock RS 800-9866
Référence fabricantCAT3200HU2-GT3
1,566 €
Each (In a Pack of 5)
Unité
Charge Pump 100mA 2.6 MHz Surface Mount UDFN 8 - 2 x 2 x 0.5mm 0.5mm 2mm 4.5 V +85 °C 5.2 V 2.7 V
N° de stock RS 517-1208
Référence fabricantTPS60403DBVT
1,034 €
Each (In a Pack of 5)
Unité
Inverting, Step Down, Step Up - - Surface Mount SOT-23 5 - 2.9 x 1.6 x 1.15mm 1.15mm 2.9mm 5.25 V +125 °C -1.6 V 1.8 V
N° de stock RS 662-4093
Référence fabricantTPS60403DBVR
0,896 €
Each (In a Pack of 5)
Unité
Inverting - - Surface Mount SOT-23 5 - 2.9 x 1.6 x 1.15mm 1.15mm 2.9mm 5.25 V +125 °C -1.6 V 1.8 V
N° de stock RS 921-5608
Référence fabricantICL7660AIBAZA
1,566 €
Each (In a Pack of 5)
Unité
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
N° de stock RS 922-2748
Référence fabricantLT1054IP
2,587 €
Each (In a Tube of 50)
Unité
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
N° de stock RS 145-6522
Référence fabricantTPS60401DBVT
0,57 €
Each (On a Reel of 250)
Unité
Inverting, Step Down, Step Up - - Surface Mount SOT-23 5 - 2.9 x 1.6 x 1.15mm 1.15mm 2.9mm 5.25 V +125 °C -1.6 V 1.8 V
N° de stock RS 165-9505
Référence fabricantMAX889RESA+
2,535 €
Each (In a Tube of 100)
Unité
Inverting 200mA 0.62 MHz Surface Mount SOIC 8 - 5 x 4 x 1.5mm 1.5mm 5mm 5.5 V +85 °C -5.5 V 2.7 V
N° de stock RS 165-3331
Référence fabricantTC1240ECHTR
MarqueMicrochip
0,618 €
Each (On a Reel of 3000)
Unité
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