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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detalji proizvoda Proizvođač 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 Minimum Output Voltage Minimum Operating Temperature Width
12V 30MA CHARGE PUMP DC-DC, MAX662ACSA+ Maxim Step Up - - Surface Mount SOIC 8 - 5 x 4 x 1.5mm 1.5mm 5mm 5.5 V +70 °C - 4.5 V - 0 °C 4mm
12V 30MA CHARGE PUMP DC-DC, MAX662ACSA+ Maxim - - - - - - - - - - - - - - - - -
12V 30MA CHARGE PUMP DC-DC, MAX662AESA+ Maxim Step Up - - Surface Mount SOIC 8 - 5 x 4 x 1.5mm 1.5mm 5mm 5.5 V +85 °C - 4.5 V - -40 °C 4mm
12V 30MA CHARGE PUMP DC-DC, MAX662AESA+ Maxim - - - - - - - - - - - - - - - - -
20MA CHARGE PUMP CONVERTER, ICL7660CSA+ Maxim Inverting, Step Up - - Surface Mount SOIC 8 - 5 x 4 x 1.5mm 1.5mm 5mm 10 V +70 °C -1.5 V, 20 V 1.5 V -10 V, 3 V 0 °C 4mm
20MA CHARGE PUMP CONVERTER, ICL7660CSA+ Maxim - - - - - - - - - - - - - - - - -
20MA CHARGE PUMP CONVERTER, MAX1044CSA+ Maxim - - - - - - - - - - - - - - - - -
20MA CHARGE PUMP CONVERTER, MAX1044CSA+ Maxim Inverting, Step Up - - Surface Mount SOIC 8 - 5 x 4 x 1.5mm 1.5mm 5mm 10 V +70 °C -1.5 V, 20 V 1.5 V -10 V, 3 V 0 °C 4mm
BUCK-BOOST REGULATING CHARGE PUMP 100MA Maxim Step Down, Step Up 100mA 1800 kHz Surface Mount μMAX 10 1.6 → 5.5 V 3.05 x 3.05 x 0.95mm 0.95mm 3.05mm 5.5 V +85 °C 3.3 V, 5.5 V 1.6 V 2.5 V -40 °C 3.05mm
BUCK-BOOST REGULATING CHARGE PUMP 100MA Maxim - - - - - - - - - - - - - - - - -
CHARGE PUMP INV -1.4V TO -5.5V 25MA Maxim Inverting 50mA 125 kHz Surface Mount SOT-23 5 1 V 3 x 3 x 1.3mm 1.3mm 3mm 5.5 V +85 °C -1.4 V 1.4 V -5.5 V -40 °C 3mm
CHARGE PUMP INV -1.4V TO -5.5V 25MA Maxim - - - - - - - - - - - - - - - - -
CHARGE PUMP INV -1.5V TO -5.5V 25MA Maxim Inverting 50mA 35 kHz Surface Mount SOT-23 5 1 V 3 x 1.75 x 1.3mm 1.3mm 3mm 5.5 V +85 °C -1.5 V 1.25 V -5.5 V -40 °C 1.75mm
CHARGE PUMP INV -1.5V TO -5.5V 25MA Maxim - - - - - - - - - - - - - - - - -
CHARGE PUMP INV -2.5V TO -5.5V 200MA Maxim Inverting 250mA 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 -2.5 V 2.7 V -5.5 V -40 °C 4mm
CHARGE PUMP INV -2.5V TO -5.5V 200MA Maxim - - - - - - - - - - - - - - - - -
CHARGE PUMP INV -3.6V TO -11V 30MA Maxim 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 -10 V -40 °C 3.15mm
CHARGE PUMP INV -3.6V TO -11V 30MA Maxim - - - - - - - - - - - - - - - - -
CHARGE PUMP INV. REG. 200MA 0.5MHZ SOIC8 Maxim 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 -2.5 V -40 °C 4mm
CHARGE PUMP INV. REG. 200MA 0.5MHZ SOIC8 Maxim - - - - - - - - - - - - - - - - -
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