LTC1144I LINER [Linear Technology], LTC1144I Datasheet
LTC1144I
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LTC1144I Summary of contents
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FEATURE S Wide Operating Supply Voltage Range 18V Boost Pin (Pin 1) for Higher Switching Frequency Simple Conversion of 15V to –15V Supply Low Output Resistance: 120 Maximum Power Shutdown with SHDN Pin Open Circuit ...
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... Indefinite + V 15V ........................................................ 30 sec + V 20V ............................................. Not Protected Power Dissipation ............................................. 500mW Operating Temperature Range LTC1144C................................................ LTC1144I ............................................ – Storage Temperature Range ................. – 150 C Lead Temperature (Soldering, 10 sec).................. 300 C ELECTRICAL C HARA TERISTICS 15V 0pF Test Circuit Figure 1, unless otherwise noted. ...
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W U TYPICAL PERFORMANCE CHARACTERISTICS Output Resistance vs Supply Voltage 300 T = 25°C A 250 200 150 100 SUPPLY VOLTAGE (V) LTC1144 • TPC01 Oscillator Frequency as a Function ...
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LTC1144 W U TYPICAL PERFORMANCE CHARACTERISTICS Power Conversion Efficiency and Supply Current vs Load Current 100 P EFF 25° BOOST = ...
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TEST CIRCUITS + PPLICATI S I FOR ATIO Theory of Operation To understand the theory of operation of the LTC1144, a review of a basic switched-capacitor building block is helpful. In Figure 2, ...
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LTC1144 PPLICATI S I FOR ATIO and hence the efficiency, is set by the output impedance. As frequency is decreased, the output impedance will eventually be dominated by the 1/(f C1) term and power efficiency will ...
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TYPICAL PPLICATI Negative Voltage Converter Figure 8 shows a typical connection which will provide a negative supply from an available positive supply. This circuit operates over full temperature and power supply ranges without the need of any ...
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LTC1144 O U TYPICAL A PPLICATI Regulated –5V Output Voltage Figure 12 shows a regulated –5V output with a 9V input. With a 0mA to 5mA load current, the R Paralleling for Lower Output Resistance Additional flexibility of the LTC1144 ...