lm2685mtcx National Semiconductor Corporation, lm2685mtcx Datasheet
lm2685mtcx
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lm2685mtcx Summary of contents
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... Doubles input supply voltage Typical Application and Connection Diagram Ordering Information Order Number Package Type LM2685MTC TSSOP-14 LM2685MTCX TSSOP-14 © 2004 National Semiconductor Corporation n TSSOP-14 package n 80% typical conversion efficiency at 25mA n Input voltage range of 2.85V to 6.5V n Independent shutdown control pins Applications ...
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Pin Description Pin No. Name GND 3 V NEG 4 V NSW SDP 7 SDN − PSW 12 V DBL + ...
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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 NEG SDN, SDP Continuous Output Current ...
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Typical Performance Characteristics Unless otherwise specified 25˚ Supply Current vs Input Voltage 10110006 Output Voltage (V ) vs. 05 Load Current 10110009 Output Resistance (VDBL) vs. Input Voltage 10110011 www.national.com = 3.6V. IN Supply Current vs ...
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Typical Performance Characteristics Line Transient Response (with 5mA Load) 10110014 A: INPUT VOLTAGE 3.2V to 6.0V, 5V/div IN B: OUTPUT VOLTAGE 100mV/div PSW C: OUTPUT VOLTAGE 100mV/div NSW V and V Response to CE ...
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Detailed Device Description The LM2685 CMOS charge pump voltage converter oper- ates as an input voltage doubler, +5V regulator and inverter for an input voltage in the range of +2.85V to +6.5V. It delivers maximum load currents of 50mA and ...
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Detailed Device Description (Continued) CMOS switches which are in a sequence to invert the input supply voltage. Figure 3 illustrates the voltage conversion scheme. When S1 and S3 are closed, C1 charges to the supply voltage V . During this ...
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Application Information FIGURE 5. ESR Curve for C FIGURE 6. ESR Curve for C www.national.com (Continued) INVERTER EXTERNAL CAPACITORS As discussed in the +5 LDO Regulator External Capacitors section, the output resistance and ripple voltage are depen- dent on the ...
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Physical Dimensions inches (millimeters) unless otherwise noted For Ordering, Refer to Ordering Information Table National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time ...