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LT3029IMSETR Datasheet(PDF) 3 Page - Linear Technology |
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LT3029IMSETR Datasheet(HTML) 3 Page - Linear Technology |
3 / 20 page LT3029 3 3029f ELECTRICAL CHARACTERISTICS 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 LT3029 is tested and specified under pulse load conditions such that TJ ≈ TA. The LT3029E is 100% tested at TA = 25°C. Performance of the LT3029E over the full –40°C to 125°C operating junction temperature range is assured by design, characterization and correlation with statistical process controls. The LT3029I is guaranteed over the full –40°C to 125°C operating junction temperature range. The LT3029MP is 100% tested and guaranteed over the –55°C to 125°C operating junction temperature range. The LT3029H is tested at 150°C operating junction temperature. High junction temperatures degrade operating lifetimes. Operating lifetime is derated at junction temperatures greater than 125°C. PARAMETER CONDITIONS MIN TYP MAX UNITS Minimum Input Voltage (Notes 3, 11) ILOAD = 500mA l 1.8 2.3 V ADJ1, ADJ2 Pin Voltage (Notes 3, 4, 9) VIN = 2V, ILOAD = 1mA 2.3V < VIN < 20V, 1mA < ILOAD < 500mA (E, I, MP) 2.3V < VIN < 20V, 1mA < ILOAD < 500mA (H) l l 1.203 1.191 1.173 1.215 1.215 1.215 1.227 1.239 1.239 V V V Line Regulation (Note 3) ΔVIN = 2V to 20V, ILOAD = 1mA l 0.5 5 mV Load Regulation (Note 3) VIN = 2.3V, ΔILOAD = 1mA to 500mA VIN = 2.3V, ΔILOAD = 1mA to 500mA (E, I, MP) VIN = 2.3V, ΔILOAD = 1mA to 500mA (H) l l 2.5 6 15 32 mV mV mV Dropout Voltage VIN = VOUT(NOMINAL) (Notes 5, 6, 11) ILOAD = 10mA ILOAD = 10mA l 0.11 0.18 0.25 V V ILOAD = 50mA ILOAD = 50mA l 0.16 0.22 0.31 V V ILOAD = 100mA ILOAD = 100mA l 0.2 0.25 0.34 V V ILOAD = 500mA ILOAD = 500mA l 0.3 0.36 0.46 V V GND Pin Current (per Channel) VIN = VOUT(NOMINAL) (Notes 5, 7) ILOAD = 0mA ILOAD = 1mA ILOAD = 50mA ILOAD = 100mA ILOAD = 250mA ILOAD = 500mA l l l l l l 55 90 1.1 2 4.3 10 150 250 2 3.5 8 16 μA μA mA mA mA mA Output Voltage Noise COUT = 10μF, CBYP = 10nF, ILOAD = 500mA, BW = 10Hz to 100kHz 20 μVRMS ADJ1/ADJ2 Pin Bias Current ADJ1, ADJ2 (Notes 3, 8) 30 100 nA Shutdown Threshold VOUT = Off to On VOUT = On to Off l l 0.20 0.45 0.40 1.1 V V SHDN1/SHDN2 Pin Current (Note 10) VSHDN1, VSHDN2 = 0V VSHDN1, VSHDN2 = 20V l l 0 0.6 0.5 3 μA μA Quiescent Current in Shutdown (per Channel) VIN = 6V, VSHDN1 = 0V, VSHDN2 = 0V 0.01 0.1 μA Ripple Rejection VIN = 2.715V (Avg), VRIPPLE = 0.5VP-P, fRIPPLE = 120Hz, ILOAD = 500mA 55 67 dB Current Limit (Note 9) VIN = 7V, VOUT = 0V VIN = 2.3V, ΔVOUT = –0.1V l 520 1.5 A mA Input Reverse Leakage Current VIN = –20V, VOUT = 0V l 1mA Reverse Output Current VOUT = 1.215V, VIN = 0V 0.5 10 μA The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 2) Note 3: The LT3029 is tested and specified for these conditions with the ADJ1/ADJ2 pin connected to the corresponding OUT1/OUT2 pin. Note 4: Maximum junction temperature limits operating conditions. The regulated output voltage specification does not apply for all possible combinations of input voltage and output current. When operating at maximum input voltage, limit the output current range. When operating at maximum output current, limit the input voltage range. Note 5: To satisfy minimum input voltage requirements, the LT3029 is tested and specified for these conditions with an external resistor divider (two 243k resistors) for an output voltage of 2.437V. The external resistor divider adds 5μA of DC load on the output. Note 6: Dropout voltage is the minimum input to output voltage differential needed to maintain regulation at a specified output current. In dropout, the output voltage equals: VIN – VDROPOUT. |
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