Datasheet LTM4600HV (Analog Devices) - 3

LTM4600HV
elecTrical characTerisTics The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C, VIN = 12V. External CIN = 120µF, COUT = 200µF/Ceramic per typical application (front page) configuration. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN(DC) Input DC Voltage Abs Max 28V for Tolerance on 24V Inputs l 4.5 28 V VOUT(DC) Output Voltage FCB = 0V VIN = 5V or 12V, VOUT = 1.5V, IOUT = 0A 1.478 1.50 1.522 V l 1.470 1.50 1.530 V
Input Specifications
VIN(UVLO) Under Voltage Lockout Threshold IOUT = 0A 3.4 4 V IINRUSH(VIN) Input Inrush Current at Startup IOUT = 0A, VOUT = 1.5V, FCB = 0 VIN = 5V 0.6 A VIN = 12V 0.7 A VIN = 24V 0.8 A IQ(VIN) Input Supply Bias Current IOUT = 0A, EXTVCC Open VIN = 12V, VOUT = 1.5V, FCB = 5V 1.2 mA VIN = 12V, VOUT = 1.5V, FCB = 0V 42 mA VIN = 24V, VOUT = 2.5V, FCB = 5V 1.8 mA VIN = 24V, VOUT = 2.5V, FCB = 0V 36 mA Shutdown, RUN = 0.8V, VIN = 12V 35 75 µA Min On Time 100 ns Min Off Time 400 ns IS(VIN) Input Supply Current VIN = 12V, VOUT = 1.5V, IOUT = 10A 1.52 A VIN = 12V, VOUT = 3.3V, IOUT = 10A 3.13 A VIN = 5V, VOUT = 1.5V, IOUT = 10A 3.64 A VIN = 24V to 3.3V at 10A, EXTVCC = 5V 1.6 A
Output Specifications
IOUTDC Output Continuous Current Range VIN = 12V, VOUT = 1.5V 0 10 A (See Output Current Derating Curves for VIN = 24V, VOUT = 2.5V (Note 3) 0 10 A Different VIN, VOUT and TA) ΔVOUT(LINE) Line Regulation Accuracy VOUT = 1.5V. FCB = 0V, IOUT = 0A, l 0.15 0.3 % V VOUT IN = 4.5V to 28V ΔVOUT(LOAD) Load Regulation Accuracy VOUT = 1.5V. FCB = 0V, IOUT = 0A to 10A V V ±1 % OUT IN = 5V VIN = 12V (Notes 4, 5) l ±1.5 % VOUT(AC) Output Ripple Voltage VIN = 12V, VOUT = 1.5V, FCB = 0V, IOUT = 0A 10 15 mVP-P fs Output Ripple Voltage Frequency FCB = 0V, IOUT = 5A, VIN = 12V, VOUT = 1.5V 850 kHz tSTART Turn-On Time VOUT = 1.5V, IOUT = 1A VIN = 12V 0.5 ms VIN = 5V 0.7 ms ΔVOUTLS Voltage Drop for Dynamic Load Step VOUT = 1.5V, Load Step: 0A/µs to 5A/µs 36 mV COUT = 3 • 22µF 6.3V, 470µF 4V POSCAP, See Table 2 tSETTLE Settling Time for Dynamic Load Step VIN = 12V Load: 10% to 90% to 10% of Full Load 25 µs IOUTPK Output Current Limit Output Voltage in Foldback VIN = 24V, VOUT = 2.5V 17 A VIN = 12V, VOUT = 1.5V 17 A VIN = 5V, VOUT = 1.5V 17 A
Control Stage
VOSET Voltage at VOSET Pin IOUT = 0A, VOUT = 1.5V l 0.591 0.6 0.609 V 0.594 0.6 0.606 V VRUN/SS RUN ON/OFF Threshold 0.8 1.5 2 V 4600hvfe For more information www.linear.com/LTM4600HV 3 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Simplified Block Diagram Decoupling Requirements Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts