Datasheet LT3001 (Analog Devices) - 3

link to page 2 LT3001
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 5V, VEN/UVLO = VIN unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNIT
VIN Input Voltage Range 4 36 V IQ VIN Quiescent Current VEN/UVLO = 0.2V 0.8 2 µA Active Mode 350 µA EN/UVLO Shutdown Threshold For Lowest Off IQ 0.2 0.55 V EN/UVLO Enable Threshold Falling 1.204 1.228 1.248 V Hysteresis 0.014 V IHYS EN/UVLO Hysteresis Current VEN/UVLO = 1.1V 2.2 2.5 2.8 µA VEN/UVLO = 1.3V –0.1 0 0.1 µA fMIN Minimum Switching Frequency 9.4 10 10.6 kHz tON(MIN) Minimum Switch-On Time 170 ns ISW(MAX) Maximum SW Current Limit 1.200 1.375 1.550 A ISW(MIN) Minimum SW Current Limit 0.22 0.29 0.36 A RDS(ON) Switch On-Resistance ISW = 500mA 0.4 Ω IRFB RFB Regulation Current l 97.5 100 102.5 µA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 3:
The LT3001E is guaranteed to meet performance specifications may cause permanent damage to the device. Exposure to any Absolute from 0°C to 125°C operating junction temperature. Specifications over Maximum Rating condition for extended periods may affect device the –40°C to 125°C operating junction temperature range are assured by reliability and lifetime. design, characterization and correlation with statistical process controls.
Note 2:
The SW pin is rated to 65V for transients. Depending on the The LT3001I is guaranteed over the full –40°C to 125°C operating junction leakage inductance voltage spike, operating waveforms of the SW pin temperature range. should be derated to keep the flyback voltage spike below 65V.
Note 4:
The LT3001 includes overtemperature protection that is intended to protect the device during momentary overload conditions. Junction temperature will exceed 150°C when overtemperature protection is active. Continuous operation above the specified maximum operating junction temperature may impair device reliability. Rev. 0 For more information www.analog.com 3 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Operation Applications Information Package Description