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MAX660 voltage Inverter & Doubler
- Stock: 1
- SKU: 534 | DAA433
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Rs. 448.40 (inc GST)
Rs.380.00 + GSTQty :
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MAX660 CMOS Monolithic Voltage Converter
Maxim's MAX660 monolithic, charge-pump voltage inverter converts a +1.5V to +5.5V input to a corresponding-1.5V to -5.5V output.
Using only two low-cost capacitors, the charge pump's 100mA output replaces switching regulators, eliminating inductors and their associated cost, size, and EMI. Greater than 90% efficiency over most of its load-current range combined with a typical operating current of only 120µA provides ideal performance for both battery-powered and board-level voltage conversion applications. The MAX660 can also double the output voltage of an input power supply or battery, providing +9.35V at 100mA from a +5V input.
A frequency control (FC) pin selects either 10kHz typ or 80kHz typ (40kHz min) operation to optimize capacitor size and quiescent current. The oscillator frequency can also be adjusted with an external capacitor or driven with an external clock. The MAX660 is a pin-compatible, high-current upgrade of the ICL7660.
Key Features of MAX660
- Small Capacitors
- 0.65V Typ Loss at 100mA Load
- Low 120µA Operating Current
- 6.5Ω Typ Output Impedance
- Guaranteed ROUT < 15Ω for C1 = C2 = 10µF
- Pin-Compatible High-Current ICL7660 Upgrade
- Inverts or Doubles Input Supply Voltage
- Selectable Oscillator Frequency: 10kHz/80kHz
- 88% Typ Conversion Efficiency at 100mA (IL to GND)
Applications/Uses of MAX660
- Handheld Instruments (PDAs, Palmtops)
- Interface Power Supplies
- Laptop Computers
- Medical Instruments
- Operational Amplifier Power Supplies
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