Datasheet LTM4630-1 (Analog Devices) - 3

LTM4630-1
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the specified internal operating temperature range. Specified as each individual output channel. TA = 25°C (Note 2), VIN = 12V and VRUN1, VRUN2 at 5V unless otherwise noted. Per the typical application in Figure 25. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN Input DC Voltage l 4.5 15 V VOUT Output Voltage l 0.6 1.8 V VOUT1(DC), Output Voltage, Total Variation with CIN = 22µF × 3, COUT = 100µF × 1 Ceramic, VOUT2(DC) Line and Load 470µF POSCAP, RFB = 40.2kΩ VIN = 12V, VOUT = 1.5V, IOUT = 0A to 18A A-Grade (0.8%) l 1.488 1.5 1.512 V B-Grade (1.5%) l 1.477 1.5 1.523 V
Input Specifications
VRUN1, VRUN2 RUN Pin On/Off Threshold RUN Rising 1.1 1.25 1.40 V VRUN1HYS, VRUN2HYS RUN Pin On Hysteresis 150 mV IINRUSH(VIN) Input Inrush Current at Start-Up IOUT = 0A, CIN = 22µF ×3, CSS = 0.01µF, 1 A COUT = 100µF ×3, VOUT1 = 1.5V, VOUT2 = 1.5V, VIN = 12V IQ(VIN) Input Supply Bias Current VIN = 12V, VOUT = 1.5V, Burst Mode® Operation 3 mA VIN = 12V, VOUT = 1.5V, Pulse-Skipping Mode 15 mA VIN = 12V, VOUT= 1.5V, Switching Continuous 65 mA Shutdown, RUN = 0, VIN = 12V 50 µA IS(VIN) Input Supply Current VIN = 5V, VOUT = 1.5V, IOUT = 18A 6 A VIN = 12V, VOUT = 1.5V, IOUT = 18A 2.6 A
Output Specifications
IOUT1(DC), IOUT2(DC) Output Continuous Current Range VIN = 12V, VOUT = 1.5V (Note 7) 0 18 A ΔVOUT1(LINE)/VOUT1 Line Regulation Accuracy VOUT = 1.5V, VIN from 4.5V to 15V l 0.01 0.03 %/V ΔVOUT2(LINE)/VOUT2 IOUT = 0A for Each Output, ΔVOUT1/VOUT1 Load Regulation Accuracy For Each Output, VOUT = 1.5V, 0A to 18A ΔVOUT2/VOUT2 VIN = 12V (Note 7) A-Grade l 0.1 0.3 % B-Grade l 0.2 0.5 % VOUT1(AC), VOUT2(AC) Output Ripple Voltage For Each Output, IOUT = 0A, COUT = 100µF ×3/ 15 mVP-P X7R/Ceramic, 470µF POSCAP, VIN = 12V, VOUT = 1.5V, Frequency = 450kHz fS (Each Channel) Output Ripple Voltage Frequency VIN = 12V, VOUT = 1.5V, fSET = 1.25V (Note 4) 500 kHz fSYNC SYNC Capture Range 400 780 kHz (Each Channel) ΔVOUTSTART Turn-On Overshoot COUT = 100µF/X5R/Ceramic, 470µF POSCAP, 10 mV (Each Channel) VOUT = 1.5V, IOUT = 0A VIN = 12V tSTART Turn-On Time COUT = 100µF/X5R/Ceramic, 470µF POSCAP, 5 ms (Each Channel) No Load, TRACK/SS with 0.01µF to GND, VIN = 12V ΔVOUT(LS) Peak Deviation for Dynamic Load Load: 0% to 25% to 0% of Full Load 83 mV (Each Channel) COUT = 5 × 220µF Ceramic VIN = 12V, VOUT = 1.5V tSETTLE Settling Time for Dynamic Load Load: 0% to 25% to 0% of Full Load, 40 µs (Each Channel) Step VIN = 12V, VOUT = 1.5V, COUT = 5 × 220µF Ceramic IOUT(PK) Output Current Limit VIN = 12V, VOUT = 1.5V 30 A (Each Channel) 46301fa For more information www.linear.com/LTM4630-1 3 Document Outline Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Operation Applications Information Package Description Related Parts Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Simplified Block Diagram Decoupling Requirements Operation Applications Information Output Total DC Accuracy and AC Transient Performance Applications Information Typical Applications Package Description Revision History Package Photo Design Resources Related Parts