LT3029 elecTrical characTerisTicsThe l denotes the specifications which apply over the full operatingtemperature range, otherwise specifications are at TA = 25°C. (Note 2) PARAMETERCONDITIONSMINTYPMAXUNITS 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 1.203 1.215 1.227 V 2.3V < VIN < 20V, 1mA < ILOAD < 500mA (E, I, MP) l 1.191 1.215 1.239 V 2.3V < VIN < 20V, 1mA < ILOAD < 500mA (H) l 1.173 1.215 1.239 V Line Regulation (Note 3) ∆VIN = 2V to 20V, ILOAD = 1mA l 0.5 5 mV Load Regulation (Note 3) VIN = 2.3V, ∆ILOAD = 1mA to 500mA 2.5 6 mV VIN = 2.3V, ∆ILOAD = 1mA to 500mA (E, I, MP) l 15 mV VIN = 2.3V, ∆ILOAD = 1mA to 500mA (H) l 32 mV Dropout Voltage ILOAD = 10mA 0.11 0.18 V VIN = VOUT(NOMINAL) ILOAD = 10mA l 0.25 V (Notes 5, 6, 11) ILOAD = 50mA 0.16 0.22 V ILOAD = 50mA l 0.31 V ILOAD = 100mA 0.2 0.25 V ILOAD = 100mA l 0.34 V ILOAD = 500mA 0.3 0.36 V ILOAD = 500mA l 0.46 V GND Pin Current (per Channel) ILOAD = 0mA l 55 150 µA VIN = VOUT(NOMINAL) ILOAD = 1mA l 90 250 µA (Notes 5, 7) ILOAD = 50mA l 1.1 2 mA ILOAD = 100mA l 2 3.5 mA ILOAD = 250mA l 4.3 8 mA ILOAD = 500mA l 10 16 mA Output Voltage Noise COUT = 10µF, CBYP = 10nF, ILOAD = 500mA, 20 µVRMS BW = 10Hz to 100kHz ADJ1/ADJ2 Pin Bias Current ADJ1, ADJ2 (Notes 3, 8) 30 100 nA Shutdown Threshold VOUT = Off to On l 0.45 1.1 V VOUT = On to Off l 0.20 0.40 V SHDN1/SHDN2 Pin Current (Note 10) VSHDN1, VSHDN2 = 0V l 0 0.5 µA VSHDN1, VSHDN2 = 20V l 0.6 3 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, 55 67 dB fRIPPLE = 120Hz, ILOAD = 500mA Current Limit (Note 9) VIN = 7V, VOUT = 0V 1.5 A VIN = 2.3V, ∆VOUT = –0.1V l 520 mA Input Reverse Leakage Current VIN = –20V, VOUT = 0V l 1 mA Reverse Output Current VOUT = 1.215V, VIN = 0V 0.5 10 µA Note 1: Stresses beyond those listed under Absolute Maximum Ratings Note 3: The LT3029 is tested and specified for these conditions with the may cause permanent damage to the device. Exposure to any Absolute ADJ1/ADJ2 pin connected to the corresponding OUT1/OUT2 pin. Maximum Rating condition for extended periods may affect device Note 4: Maximum junction temperature limits operating conditions. The reliability and lifetime. regulated output voltage specification does not apply for all possible Note 2: The LT3029 is tested and specified under pulse load conditions combinations of input voltage and output current. When operating at such that TJ ≈ TA. The LT3029E is 100% tested at TA = 25°C. Performance maximum input voltage, limit the output current range. When operating at of the LT3029E over the full –40°C to 125°C operating junction maximum output current, limit the input voltage range. temperature range is assured by design, characterization and correlation Note 5: To satisfy minimum input voltage requirements, the LT3029 is with statistical process controls. The LT3029I is guaranteed over the full tested and specified for these conditions with an external resistor divider –40°C to 125°C operating junction temperature range. The LT3029MP is (two 243k resistors) for an output voltage of 2.437V. The external resistor 100% tested and guaranteed over the –55°C to 125°C operating junction divider adds 5µA of DC load on the output. temperature range. The LT3029H is tested at 150°C operating junction temperature. High junction temperatures degrade operating lifetimes. Note 6: Dropout voltage is the minimum input to output voltage differential Operating lifetime is derated at junction temperatures greater than 125°C. needed to maintain regulation at a specified output current. In dropout, the output voltage equals: VIN – VDROPOUT. 3029fb For more information www.linear.com/LT3029 3 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Applications Information Package Description Revision History Typical Application Related Parts