LM2663M/NOPB National Semiconductor, LM2663M/NOPB Datasheet
LM2663M/NOPB
Specifications of LM2663M/NOPB
*LM2663M/NOPB
LM2663M
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LM2663M/NOPB Summary of contents
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... FC pin. The SD pin can be used to disable the device and reduce the quiescent current to 10 μA. The oscillator frequency for LM2663 is 150 kHz. Basic Application Circuits Voltage Inverter © 2008 National Semiconductor Corporation Features ■ Inverts or doubles input supply voltage ■ ...
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... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage (V+ to GND, or GND to OUT) LV (OUT − 0.3V) to (GND + 3V) FC, OSC, SD The least negative of (OUT − 0.3V) or (V+ − 6V) to (V+ + 0.3V) ...
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Test Circuits Typical Performance Characteristics Supply Current vs Supply Voltage Output Source Resistance vs Supply Voltage 10000304 FIGURE 1. LM2662 and LM2663 Test Circuits (Circuit of Figure 1) 10000337 10000339 3 10000305 Supply Current vs Oscillator Frequency 10000338 Output Source ...
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Output Source Resistance vs Temperature Output Voltage Drop vs Load Current Output Voltage vs Oscillator Frequency www.national.com 10000341 Oscillator Frequency 10000343 Oscillator Frequency 10000345 4 Efficiency vs Load Current 10000342 Efficiency vs 10000344 vs External Capacitance 10000346 ...
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Oscillator Frequency vs Supply Voltage 10000347 Oscillator Frequency vs Temperature 10000349 Shutdown Supply Current vs Temperature (LM2663 Only) 10000351 Oscillator Frequency vs Supply Voltage Oscillator Frequency vs Temperature 5 10000348 10000350 www.national.com ...
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Connection Diagrams 8-Lead SO (M) Pin Descriptions Pin Name 1 FC Frequency control for internal oscillator: (LM2662 open, f OSC 150 kHz (typ); OSC FC has no effect when OSC pin is driven ...
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FIGURE 2. Voltage Inverting Principle Application Information SIMPLE NEGATIVE VOLTAGE CONVERTER The main application of LM2662/LM2663 is to generate a negative supply voltage. The voltage inverter circuit uses only two external capacitors as shown in the Basic Application Circuits. The ...
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TABLE 2. LM2663 Oscillator Frequency Selection OSC Open 150 kHz External Capacitor See Typical Performance Characteristics External Clock External Clock Frequency (inverter mode only) SHUTDOWN MODE For the LM2663, a shutdown (SD) pin is available to disable the device and ...
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Other Applications PARALLELING DEVICES Any number of LM2662s (or LM2663s) can be paralleled to reduce the output resistance. Each device must have its own pumping capacitor C , while only one output capacitor C 1 needed as shown in Figure ...
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REGULATING V out It is possible to regulate the output of the LM2662/LM2663 by use of a low dropout regulator (such as LP2986). The whole converter is depicted in Figure 8. This converter can give a regulated output from −1.5V ...
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FIGURE 8. Combining LM2662/LM2663 with LP2986 to Make a Negative Adjustable Regulator Also, as shown in Figure 9 by operating the LM2662/LM2663 in voltage doubling mode and adding a low dropout regulator FIGURE 9. Generating +5V from +3.3V Input Voltage ...
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Physical Dimensions www.national.com inches (millimeters) unless otherwise noted 8-Lead SO (M) Order Number LM2662M or LM2663M NS Package Number M08A 12 ...
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Notes 13 www.national.com ...
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