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 207-0281
製造零件編號TC7660COA
BrandMicrochip
HK$6.85
單位
- - - Surface Mount SOIC 8 - 4.9 x 3.91 x 1.42mm 1.42mm 4.9mm - +70 °C 10 V -
RS庫存編號 889-5339
製造零件編號MCP1257-E/MF
BrandMicrochip
HK$9.50
毎管:120 個
單位
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庫存編號 851-6761
製造零件編號LTC3261IMSE#PBF
HK$68.19
單位
Inverting 100mA 550 kHz Surface Mount MSOP 12 4.5 to 32 V 4.039 x 3 x 0.86mm 0.86mm 4.04mm 32 V +150 °C -32 V 4.5 V
RS庫存編號 822-5878
製造零件編號LTC1261CS8#PBF
HK$36.01
/個 (每包:2個)
單位
Inverting, Step Up 15mA 550 kHz Surface Mount SOIC 8 3 to 8 V 5.004 x 3.988 x 1.498mm 1.498mm 5mm 8 V +70 °C -8 V 3 V
RS庫存編號 662-4090
製造零件編號TPS60402DBVT
HK$9.342
/個 (每包:5個)
單位
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
RS庫存編號 146-0990
製造零件編號MAX881REUB+
HK$26.265
毎管:50 個
單位
Inverting - - Surface Mount μMAX 10 - 3.05 x 3.05 x 0.95mm 0.95mm 3.05mm 5.5 V +85 °C -0.5 V 2.5 V
RS庫存編號 146-1040
製造零件編號ICL7662EPA+
HK$39.13
毎管:50 個
單位
Inverting 20mA 10 kHz Through Hole PDIP 8 4.5 → 20 V 10.033 x 6.35 x 3.302mm 3.302mm 10.03mm 20 V +85 °C -4.5 V 4.5 V
RS庫存編號 709-5232
製造零件編號ADM8660ANZ
HK$33.41
單位
Inverting - - Through Hole PDIP 8 - 9.27 x 7.24 x 3.43mm 3.43mm 9.27mm 7 V +85 °C -1.5 V 1.5 V
RS庫存編號 912-7211
製造零件編號ADM660ARZ
HK$39.573
毎管:98 個
單位
Inverting, Step Up - - Surface Mount SOIC 8 - 5 x 4 x 1.5mm 1.5mm 5mm 7 V +85 °C 1.7 V, 14 V 1.5 V
RS庫存編號 921-5608
製造零件編號ICL7660AIBAZA
HK$16.182
/個 (每包:5個)
單位
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
RS庫存編號 169-8211
製造零件編號NJU7670M
HK$19.795
毎管:50 個
單位
Step Up - - Surface Mount DMP 14 - 10 x 5 x 1.6mm 1.6mm 10mm -2.6 V +75 °C - -6 V
RS庫存編號 158-4513
製造零件編號ADM8660ARZ
HK$33.053
毎管:98 個
單位
Inverting - - Surface Mount SOIC 8 - 5 x 4 x 1.5mm 1.5mm 5mm 7 V +85 °C -1.5 V 1.5 V
RS庫存編號 779-8984
製造零件編號LT1054CS8#PBF
HK$60.73
/個 (每包:2個)
單位
Inverting 100mA 25 kHz Surface Mount SOIC 8 - - 1.498mm 5mm 15 V +100 °C - 3.5 V
RS庫存編號 189-7010
製造零件編號MAX861ESA+
HK$31.952
毎管:100 個
單位
Inverting 50mA 250 kHz Surface Mount SOIC 8 5 V 5 x 4 x 1.5mm 1.5mm 5mm 5.5 V +85 °C -4 V 2.5 V
RS庫存編號 162-8195
製造零件編號LM2660MM/NOPB
HK$5.974
個 (在毎卷:1000)
單位
Inverting 100mA 80 kHz Surface Mount VSSOP 8 1.5 → 5.5 V 3.1 x 3.1 x 0.95mm 0.95mm 3.1mm 5.5 V +85 °C 5 V 1.5 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 190-0085
製造零件編號ICL7662CBA+
HK$32.196
/個 (每包:5個)
單位
Inverting, Step Up - - Surface Mount SOIC 8 - 5 x 4 x 1.5mm 1.5mm 5mm 20 V +70 °C -4.5 V 4.5 V
RS庫存編號 796-8388
製造零件編號TPS60150DRVT
HK$12.75
/個 (每包:5個)
單位
Charge Pump 140mA 1.5 MHz Surface Mount SON 6 - 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 165-9520
製造零件編號ICL7660EPA+
HK$26.44
毎管:50 個
單位
Inverting, Step Up 20mA 10 kHz Through Hole PDIP 8 - 9.91 x 7.87 x 4.45mm 4.45mm 9.91mm 10 V +85 °C - 1.5 V
RS庫存編號 622-8894
製造零件編號MAX660CSA+
HK$55.09
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