Datasheet LTM8052, LTM8052A (Analog Devices) - 4

LTM8052/LTM8052A
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full internal operating temperature range, otherwise specifications are at TA = 25°C. RUN = 3V, unless otherwise noted. (Note 3) PARAMETER CONDITIONS MIN TYP MAX UNITS
Minimum Input Voltage l 6 V Output DC Voltage IOUT = 1A, RADJ Open 1.2 V IOUT = 1A, RADJ = 499Ω 24 V Output DC Current CTL_T, CTL_I = 1.5V –6 5 A Quiescent Current Into VIN VIN = 12V, RUN = 0V 0.1 3 µA VIN = 12V, No Load 17 30 mA Line Regulation 6V < VIN < 36V, IOUT = 1A 0.1 % Load Regulation VIN = 12V, 0A < IOUT < 5A 0.7 % Output RMS Voltage Ripple VIN = 12V, IOUT = 4.5A 10 mV Switching Frequency RT = 40.2k 1000 kHz RT = 453k 100 kHz Voltage at ADJ Pin l 1.16 1.19 1.22 V Current Out of ADJ Pin ADJ = 0V, VOUT = 1V 100 µA RUN Pin Current RUN = 1.45V 5.5 µA RUN Threshold Voltage (Falling) 1.49 1.55 1.61 V RUN Input Hysteresis 160 mV CTL_I Control Range 0 1.5 V CTL_I Pin Current 1.5 µA CTL_I Positive Current Limit CTL_I = 1.5V 5.1 5.6 6.1 A CTL_I = 0.75V 2.24 2.8 3.36 A CTL_I Negative Current Limit CTL_I = 1.5V –8.5 –7.7 –6.9 A CTL_I = 0.75V –5.7 –5.1 –4.5 A CTL_T Control Range 0 1.5 V CTL_T Pin Current 1.5 µA CTL_T Positive Current Limit CTL_T = 1.5V 5.1 5.6 6.1 A CTL_T = 0.75V 2.24 2.8 3.36 A CTL_T Negative Current Limit CTL_T = 1.5V –8.5 –7.7 –6.9 A CTL_T = 0.75V –5.5 –4.9 –4.3 A VREF Voltage 0.5mA Load 1.93 2 2.04 V SS Pin Current 11 µA SYNC Input Low Threshold fSYNC = 400kHz 0.6 V SYNC Input High Threshold fSYNC = 400kHz 1.2 V SYNC Bias Current SYNC = 0V 1 µA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 3:
The LTM8052E/LTM8052AE is guaranteed to meet performance may cause permanent damage to the device. Exposure to any Absolute specifications from 0°C to 125°C internal operating temperature. Maximum Rating condition for extended periods may affect device Specifications over the full –40°C to 125°C internal operating temperature reliability and lifetime. range are assured by design, characterization and correlation with
Note 2:
This µModule regulator includes overtemperature protection that statistical process controls. The LTM8052I/LTM8052AI is guaranteed is intended to protect the device during momentary overload conditions. to meet specifications over the full –40°C to 125°C internal operating Internal temperature will exceed 125°C when overtemperature protection temperature range. The LTM8052MP/LTM8052AMP is guaranteed to meet is active. Continuous operation above the specified maximum internal specifications over the full –55°C to 125°C internal operating temperature operating junction temperature may impair device reliability. range. Note that the maximum internal temperature is determined by specific operating conditions in conjunction with board layout, the rated package thermal resistance and other environmental factors. 8052fg 4 For more information www.linear.com/LTM8052 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Package Photos Revision History Typical Application Related Parts