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LT3027 Datasheet(PDF) 3 Page - Linear Technology |
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LT3027 Datasheet(HTML) 3 Page - Linear Technology |
3 / 16 page 3 LT3027 3027fa PARAMETER CONDITIONS MIN TYP MAX UNITS GND Pin Current (Per Channel) ILOAD = 0mA ● 25 50 µA VIN = VOUT(NOMINAL) ILOAD = 1mA ● 60 120 µA (Notes 5, 7) ILOAD = 10mA ● 250 400 µA ILOAD = 50mA ● 12 mA ILOAD = 100mA ● 2.4 4 mA Output Voltage Noise COUT = 10µF, CBYP = 0.01µF, ILOAD = 100mA, BW = 10Hz to 100kHz 20 µVRMS ADJ1/ADJ2 Pin Bias Current (Notes 3, 8) 30 100 nA Shutdown Threshold VOUT = Off to On ● 0.8 1.4 V VOUT = On to Off ● 0.25 0.65 V SHDN1/SHDN2 Pin Current VSHDN = 0V ● 0 0.5 µA (Note 9) VSHDN = 20V ● 13 µA Quiescent Current in Shutdown VIN = 6V, VSHDN = 0V (Both SHDN Pins) 0.01 0.1 µA Ripple Rejection (Note 3) VIN = 2.72V (Avg), VRIPPLE = 0.5VP-P, fRIPPLE = 120Hz, 55 65 dB ILOAD = 100mA Current Limit VIN = 7V, VOUT = 0V 200 mA VIN = 2.3V, ∆VOUT = – 5% ● 110 mA Input Reverse Leakage Current VIN = – 20V, VOUT = 0V ● 1mA The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25°C. (Note 2) ELECTRICAL CHARACTERISTICS Note 5: To satisfy requirements for minimum input voltage, the LT3027 is tested and specified for these conditions with an external resistor divider (two 250k resistors) for an output voltage of 2.44V. The external resistor divider will add a 5 µA 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 will be equal to: VIN – VDROPOUT. Note 7: GND pin current is tested with VIN = 2.44V and a current source load. This means the device is tested while operating in its dropout region or at the minimum input voltage specification. This is the worst-case GND pin current. The GND pin current will decrease slightly at higher input voltages. Note 8: ADJ1 and ADJ2 pin bias current flows into the pin. Note 9: SHDN1 and SHDN2 pin current flows into the pin. Note 10: For the LT3027 dropout voltage will be limited by the minimum input voltage specification under some output voltage/load conditions. See the curve of Minimum Input Voltage in the Typical Performance Characteristics. Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: The LT3027 regulator is tested and specified under pulse load conditions such that TJ ≈ TA. The LT3027E is guaranteed to meet performance specifications from 0 °C to 125°C junction temperature. Specifications over the – 40 °C to 125°C operating junction temperature range are assured by design, characterization and correlation with statistical process controls. The LT3027I is guaranteed and tested over the full – 40 °C to 125°C operating junction temperature range. Note 3: The LT3027 is tested and specified for these conditions with the ADJ1/ADJ2 pin connected to the corresponding OUT1/OUT2 pin. Note 4: Operating conditions are limited by maximum junction temperature. The regulated output voltage specification will not apply for all possible combinations of input voltage and output current. When operating at maximum input voltage, the output current range must be limited. When operating at maximum output current, the input voltage range must be limited. |
Similar Part No. - LT3027_15 |
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Similar Description - LT3027_15 |
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