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庫存編號 121-8407
製造零件編號LT1054CP
HK$17.977
毎管:50 個
單位
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庫存編號 526-763
製造零件編號LT1054CP
HK$26.704
/個 (每包:5個)
單位
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庫存編號 786-1300
製造零件編號MAX889RESA+
BrandMaxim
HK$41.32
/個 (每包:2個)
單位
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
RS庫存編號 165-9505
製造零件編號MAX889RESA+
BrandMaxim
HK$40.987
毎管:100 個
單位
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
RS庫存編號 460-588
製造零件編號MAX660M/NOPB
HK$13.944
/個 (每包:5個)
單位
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庫存編號 121-8323
製造零件編號MAX660M/NOPB
HK$10.224
毎管:95 個
單位
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庫存編號 177-7310
製造零件編號LTC1046CS8#PBF
HK$51.992
毎管:100 個
單位
Inverting, Step Down/Step Up 50mA 30 kHz Surface Mount SOIC 8 - 5.004 x 3.988 x 1.498mm 1.498mm 5mm 6 V +70 °C - 1.5 V
RS庫存編號 768-1473
製造零件編號TC1240AECHTR
BrandMicrochip
HK$6.47
/個 (每包:10個)
單位
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庫存編號 786-9755
製造零件編號LTC1046CS8#PBF
HK$56.34
單位
Inverting, Step Down/Step Up 50mA 30 kHz Surface Mount SOIC 8 - 5.004 x 3.988 x 1.498mm 1.498mm 5mm 6 V +70 °C - 1.5 V
RS庫存編號 920-3624
製造零件編號LM2662M/NOPB
HK$14.484
毎管:95 個
單位
Inverting, Step Down, Step Up 200mA - 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庫存編號 662-4750
製造零件編號LT1054IP
HK$24.094
/個 (每包:5個)
單位
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庫存編號 533-3951
製造零件編號LM2662M/NOPB
HK$20.22
單位
Inverting, Step Down, Step Up 200mA - 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庫存編號 732-6804
製造零件編號MAX660ESA+
BrandMaxim
HK$87.99
單位
Inverting, Step Up 100mA - Surface Mount SOIC 8 - 5 x 4 x 1.5mm 1.5mm 5mm 5.5 V +85 °C - 1.5 V
RS庫存編號 921-5557
製造零件編號ICL7660CBAZ
HK$13.398
/個 (每包:5個)
單位
Inverting, Step Up - - Surface Mount SOIC 8 - 5 x 4 x 1.5mm 1.5mm 5mm 10 V +70 °C -1.5 V 1.5 V
RS庫存編號 165-3329
製造零件編號TC1240AECHTR
BrandMicrochip
HK$5.686
個 (在毎卷:3000)
單位
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庫存編號 923-1402
製造零件編號ICL7660CBAZ
HK$9.307
毎管:98 個
單位
Inverting, Step Up - - Surface Mount SOIC 8 - 5 x 4 x 1.5mm 1.5mm 5mm 10 V +70 °C -1.5 V 1.5 V
RS庫存編號 761-6087
製造零件編號LM828M5/NOPB
HK$7.006
/個 (每包:5個)
單位
Charge Pump, Inverting - 28 kHz Surface Mount SOT-23 5 - 2.92 x 1.6 x 1.02mm 1.02mm 2.92mm 5.5 V +85 °C -5.5 V 1.8 V
RS庫存編號 761-9383
製造零件編號LTC3200ES6-5#TRMPBF
HK$32.87
單位
Charge Pump, Regulated 150mA 2000 kHz Surface Mount SOT-23 6 - 3.1 x 1.75 x 1.3mm 1.3mm 3.1mm 4.5 V +85 °C 5.2 V 2.7 V
RS庫存編號 923-5609
製造零件編號MAX660ESA+
BrandMaxim
HK$63.69
毎管:100 個
單位
Inverting, Step Up 100mA - Surface Mount SOIC 8 - 5 x 4 x 1.5mm 1.5mm 5mm 5.5 V +85 °C - 1.5 V
RS庫存編號 919-9483
製造零件編號LTC3200ES6-5#TRMPBF
HK$22.228
個 (在毎卷:500)
單位
Charge Pump, Regulated 150mA 2000 kHz Surface Mount SOT-23 6 - 3.1 x 1.75 x 1.3mm 1.3mm 3.1mm 4.5 V +85 °C 5.2 V 2.7 V