Charge Pumps

Charge pumps are DC to DC converters that are often needed in designs requiring more than one dc supply voltage. Its 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. Theres 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 162-5226
製造零件編號REG71055DDCT
HK$7.869
個 (在毎卷:250)
單位
Step Down/Step Up - - Surface Mount SOT-23 6 - 2.9 x 1.6 x 0.87mm 0.87mm 2.9mm 5.5 V +85 °C - 1.8 V
RS庫存編號 165-9257
製造零件編號MAX682ESA+
HK$33.03
毎管:100 個
單位
Step Down 300mA 2000 kHz Surface Mount SOIC 8 2.7 → 5.5 V 5 x 4 x 1.5mm 1.5mm 5mm 5.5 V +85 °C 5.2 V 2.7 V
RS庫存編號 774-7898
製造零件編號TC962EPA
BrandMicrochip
HK$25.15
個 (以毎袋:2)
單位
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庫存編號 872-2464
製造零件編號TC7660CPA
BrandMicrochip
HK$5.592
毎管:60 個
單位
- - - Through Hole PDIP 8 - 10.16 x 6.6 x 4.06mm 4.06mm 10.16mm - +70 °C 10 V -
全新
RS庫存編號 189-6978
製造零件編號MAX660CSA+
HK$37.852
毎管:100 個
單位
Inverting, Step Up - - Surface Mount SOIC 8 - 5 x 4 x 1.5mm 1.5mm 5mm 5.5 V +70 °C -1.5 V, 11 V 1.5 V
RS庫存編號 422-201
製造零件編號TPS60500DGS
HK$14.388
/個 (每包:5個)
單位
Step Down - - Surface Mount MSOP 10 - 3 x 3 x 1.02mm 1.02mm 3mm 6.5 V +85 °C 3.3 V 1.8 V
RS庫存編號 681-1102
製造零件編號TC7662ACPA
BrandMicrochip
HK$22.14
單位
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庫存編號 133-0662
製造零件編號LM27761DSGT
HK$20.616
/個 (每包:5個)
單位
Inverting 250mA 2.3 MHz Surface Mount WSON 8 - 2.1 x 2.1 x 0.75mm 0.75mm 2.1mm 5.5 V +85 °C -5.2 V 2.7 V
RS庫存編號 177-7251
製造零件編號LT1026CS8#PBF
HK$43.723
毎管:100 個
單位
Inverting - - Surface Mount SOIC 8 - 5.004 x 3.988 x 1.752mm 1.752mm 5mm 10 V +70 °C 18 V 4 V
RS庫存編號 146-1010
製造零件編號MAX860ISA+
HK$21.31
毎管:100 個
單位
Inverting, Step Up 60mA 6 kHz Surface Mount SOIC 8 - 5 x 4 x 1.5mm 1.5mm 5mm 5.5 V +85 °C -1.5 V, 11 V 1.5 V
RS庫存編號 178-4969
製造零件編號TC1044SCPA
BrandMicrochip
HK$6.76
毎管:60 個
單位
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庫存編號 155-7516
製造零件編號LTC3240EDC-3.3#TRMPBF
HK$21.177
個 (在毎卷:500)
單位
Step Down 150mA 1.8 MHz Surface Mount DFN 6 1.8 5.5 V 2 x 2 x 0.7mm 0.7mm 2mm 5.5 V +85 °C 3.3 V 1.8 V
RS庫存編號 422-790
製造零件編號TPS60122PWP
HK$15.514
/個 (每包:5個)
單位
Step Up - - Surface Mount HTSSOP 20 - 6.5 x 4.4 x 1.15mm 1.15mm 6.5mm 3.6 V +85 °C - 1.8 V
全新
RS庫存編號 189-6979
製造零件編號MAX660ESA+
HK$52.046
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 159-7436
製造零件編號TC7660SEPA
BrandMicrochip
HK$6.292
毎管:60 個
單位
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庫存編號 169-8352
製造零件編號ICL7660SIPAZ
BrandIntersil
HK$12.407
毎管:50 個
單位
Inverting, Step Up - - Through Hole PDIP 8 - 10.16 x 7.11 x 4.95mm 4.95mm 10.16mm 12 V +85 °C -1.5 V, 22.8 V 1.5 V
RS庫存編號 145-7056
製造零件編號TPS60210DGS
HK$14.426
毎管:80 個
單位
Step Up - - Surface Mount MSOP 10 - 3 x 3 x 1.02mm 1.02mm 3mm 3.6 V +85 °C - 1.8 V
RS庫存編號 165-3331
製造零件編號TC1240ECHTR
BrandMicrochip
HK$5.443
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 9 V 2.5 V
RS庫存編號 919-9373
製造零件編號LTC1046IS8#PBF
HK$46.901
毎管:100 個
單位
Inverting 50µA - Surface Mount SOIC 8 - 5.004 x 3.988 x 1.752mm 1.752mm 5mm 6 V +85 °C - 1.5 V
RS庫存編號 504-4976
製造零件編號LM2665M6/NOPB
HK$6.421
/個 (每包:10個)
單位
Step Up - - Surface Mount SOT-23 6 - 2.92 x 1.6 x 1.02mm 1.02mm 2.92mm 5.5 V +85 °C 11 V 2.5 V