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LP2951CD-3.3 Datasheet(PDF) 5 Page - ON Semiconductor |
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LP2951CD-3.3 Datasheet(HTML) 5 Page - ON Semiconductor |
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5 / 16 page  LP2950 http://onsemi.com 5 DEFINITIONS Dropout Voltage – The input/output voltage differential at which the regulator output no longer maintains regulation against further reductions in input voltage. Measured when the output drops 100 mV below its nominal value (which is measured at 1.0 V differential), dropout voltage is affected by junction temperature, load current and minimum input supply requirements. Line Regulation – The change in output voltage for a change in input voltage. The measurement is made under conditions of low dissipation or by using pulse techniques such that average chip temperature is not significantly affected. Load Regulation – The change in output voltage for a change in load current at constant chip temperature. Maximum Power Dissipation – The maximum total device dissipation for which the regulator will operate within specifications. Bias Current – Current which is used to operate the regulator chip and is not delivered to the load. Output Noise Voltage – The rms ac voltage at the output, with constant load and no input ripple, measured over a specified frequency range. Leakage Current – Current drawn through a bipolar transistor collector–base junction, under a specified collector voltage, when the transistor is “off”. Upper Threshold Voltage – Voltage applied to the comparator input terminal, below the reference voltage which is applied to the other comparator input terminal, which causes the comparator output to change state from a logic “0” to “1”. Lower Threshold Voltage – Voltage applied to the comparator input terminal, below the reference voltage which is applied to the other comparator input terminal, which causes the comparator output to change state from a logic “1” to “0”. Hysteresis – The difference between Lower Threshold voltage and Upper Threshold voltage. Figure 1. Quiescent Current –50 5.00 0 6.0 0 250 0.1 10 TA, AMBIENT TEMPERATURE (°C) Vin, INPUT VOLTAGE (V) Vin, INPUT VOLTAGE (V) IL, LOAD CURRENT (mA) Figure 2. Dropout Characteristics Figure 3. Input Current Figure 4. Output Voltage versus Temperature 1.0 10 100 1.0 2.0 3.0 4.0 5.0 6.0 5.0 10 15 20 25 0 50 100 150 1.0 0.1 0.01 5.0 4.0 3.0 2.0 1.0 0 4.99 4.98 4.97 4.96 4.95 200 150 100 50 0 RL = 50 k RL = 50 Ω 0.1 mA Load Current No Load LP2951C TA = 25°C LP2951C 200 |
Similar Part No. - LP2951CD-3.3 |
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Similar Description - LP2951CD-3.3 |
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