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LT3015IQ Datasheet(PDF) 4 Page - Linear Technology |
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LT3015IQ Datasheet(HTML) 4 Page - Linear Technology |
4 / 20 page LT3015 4 3015f Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2. The LT3015 is tested and specified for these conditions with the ADJ pin connected to the OUT pin. Note 3. Maximum junction temperature limits operating conditions. The regulated output voltage specification does not apply for all possible combinations of input voltage and output current. If operating at maximum output current, limit the input voltage range. If operating at maximum input voltage, limit the output current range. Note 4. To satisfy minimum input voltage requirements, the LT3015 is tested and specified for these conditions with an external resistor divider (54.9k top, 49.9k bottom) for an output voltage of –2.56V. The external resistor adds 25μA of DC load on the output. Note 5. Dropout voltage is the minimum input-to-output voltage differential needed to maintain regulation at a specified output current. In dropout, the output voltage is: VIN + VDROPOUT. ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. PARAMETER CONDITIONS MIN TYP MAX UNITS Dropout Voltage VIN = VOUT(NOMINAL) (Notes 4, 5) ILOAD = –1mA ILOAD = –1mA ILOAD = –100mA ILOAD = –100mA ILOAD = –500mA (DFN/MSOP) ILOAD = –500mA (DFN/MSOP) ILOAD = –500mA (DD-PAK/TO-220) ILOAD = –500mA (DD-PAK/TO-220) ILOAD = –1.5A (DFN/MSOP) ILOAD = –1.5A (DFN/MSOP) ILOAD = –1.5A (DD-PAK/TO-220) ILOAD = –1.5A (DD-PAK/TO-220) l l l l l l 0.055 0.1 0.17 0.2 0.31 0.41 0.095 0.16 0.16 0.24 0.23 0.32 0.27 0.39 0.39 0.5 0.51 0.68 V V V V V V V V V V V V GND Pin Current VIN = VOUT(NOMINAL) (Notes 4, 6) ILOAD = 0mA ILOAD = –1mA ILOAD = –100mA ILOAD = –500mA ILOAD = –1.5A l l l l l 1.1 1.15 2.9 9.5 35 2.4 2.5 7.0 23 70 mA mA mA mA mA Output Voltage Noise COUT = 10μF, ILOAD = –1.5A, BW = 10Hz to 100kHz 60 μVRMS ADJ Pin Bias Current (Notes 2, 7) VIN = –2.3V –200 30 200 nA Shutdown Threshold (Note 11) VOUT = Off-to-On (Positive) VOUT = Off-to-On (Negative) VOUT = On-to-Off (Positive) VOUT = On-to-Off (Negative) l l l l 1.07 –1.34 0.5 1.21 –1.20 0.73 –0.73 1.35 –1.06 –0.5 V V V V SHDN Pin Current (Note 8) VSHDN = 0V VSHDN = 15V VSHDN = –15V l l l –1.0 0 17 –2.8 10 27 –4.5 μA μA μA Quiescent Current in Shutdown VIN = –6V, SHDN = 0V l 0.01 6 μA Ripple Rejection VIN - VOUT = –1.5V (Avg), VRIPPLE = 0.5VP-P fRIPPLE = 120Hz, ILOAD = –1.5A 55 65 dB Current Limit VIN = –2.3V, VOUT = 0V VIN = –2.3V, ΔVOUT = 0.1V l l 1.8 1.75 2.0 1.95 2.2 2.15 A A Input Reverse Leakage Current VIN = 30V, VOUT, VADJ, VSHDN = Open Circuit l 1.55 1.7 mA Note 6. GND pin current is tested with VIN = VOUT(NOMINAL) and a current source load. Therefore, the device is tested while operating in dropout. This is the worst-case GND pin current. GND pin current decreases slightly at higher input voltages. Note 7. Positive ADJ pin bias current flows into the ADJ pin. Note 8. Positive SHDN pin current flows into the SHDN pin. Note 9. The LT3015 is tested and specified under pulsed load conditions such that TJ ≅ TA. The LT3015E is guaranteed to meet performance specifications from 0°C to 125°C junction temperature. Specifications over the –40°C to 125°C operating temperature range are assured by design, characterization, and correlation with statistical process controls. The LT3015I is guaranteed over the full –40°C to 125°C operating junction temperature range. The LT3015MP is 100% tested and guaranteed over the full –55°C to 125°C operating junction temperature range. Note 10. Parasitic diodes exist internally between the OUT, ADJ, SHDN pins and the IN pin. Do not drive the OUT, ADJ, and SHDN pins more that 0.3V below the IN pin during fault conditions, and these pins must remain at a voltage more positive than IN during normal operation. Note 11. The SHDN threshold must be met to ensure device operation. |
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