Datasheet LT3092 (Analog Devices) - 4

LT3092
elecTrical characTerisTics The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TJ = 25°C. (Note 2) PARAMETER CONDITIONS MIN TYP MAX UNITS
SET Pin Current ISET VIN = 2V, ILOAD = 1mA 9.9 10 10.1 µA 2V ≤ VIN ≤ 40V, 1mA ≤ ILOAD ≤ 200mA l 9.8 10 10.2 µA Offset Voltage (VOUT – VSET) VOS VIN = 2V, ILOAD = 1mA –2 2 mV VIN = 2V, ILOAD = 1mA l –4 4 mV Current Regulation (Note 7) ∆ISET ∆ILOAD = 1mA to 200mA –0.1 nA ∆VOS ∆ILOAD = 1mA to 200mA l –0.5 –2 mV Line Regulation ∆ISET ∆VIN = 2V to 40V, ILOAD = 1mA 0.03 0.2 nA/V ∆VOS ∆VIN = 2V to 40V, ILOAD = 1mA 0.003 0.010 mV/V Minimum Load Current (Note 3) 2V ≤ VIN ≤ 40V l 300 500 µA Dropout Voltage (Note 4) ILOAD = 10mA l 1.22 1.45 V ILOAD = 200mA l 1.3 1.65 V Current Limit VIN = 5V, VSET = 0V, VOUT = –0.1V l 200 300 mA Reference Current RMS Output Noise (Note 5) 10Hz ≤ f ≤ 100kHz 0.7 nARMS Ripple Rejection f = 120Hz, VRIPPLE = 0.5VP-P, ILOAD = 0.1A, 90 dB CSET = 0.1µF, COUT = 2.2µF f = 10kHz 75 dB f = 1MHz 20 dB Thermal Regulation ISET 10ms Pulse 0.003 %/W
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 4:
For the LT3092, dropout is specified as the minimum input-to- may cause permanent damage to the device. Exposure to any Absolute output voltage differential required supplying a given output current. Maximum Rating condition for extended periods may affect device
Note 5:
Adding a small capacitor across the reference current resistor reliability and lifetime. lowers output noise. Adding this capacitor bypasses the resistor shot noise
Note 2:
Unless otherwise specified, all voltages are with respect to VOUT. and reference current noise (see the Applications Information section). The LT3092E is tested and specified under pulse load conditions such
Note 6:
Diodes with series 1k resistors clamp the SET pin to the OUT pin. that TJ @ TA. The LT3092E is 100% tested at TA = 25°C. Performance at These diodes and resistors only carry current under transient overloads. –40°C and 125°C is assured by design, characterization, and correlation
Note 7:
Current regulation is Kelvin-sensed at the package. with statistical process controls. The LT3092I is guaranteed to meet all data sheet specifications over the full –40°C to 125°C operating junction
Note 8:
This IC includes overtemperature protection that protects the temperature range. The LT3092MP is 100% tested and guaranteed over device during momentary overload conditions. Junction temperature the –55°C to 125°C operating junction temperature range. exceeds the maximum operating junction temperature when overtemperature protection is active. Continuous operation above the
Note 3:
Minimum load current is equivalent to the quiescent current of specified maximum operating junction temperature may impair device the part. Since all quiescent and drive current is delivered to the output reliability. of the part, the minimum load current is the minimum current required to maintain regulation. 3092fc 4 For more information www.linear.com/LT3092 Document Outline Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Applications Information Package Description Related Parts