Datasheet LTM4631 (Analog Devices) - 3

LTM4631
orDer inForMaTion http://www.linear.com/product/LTM4631#orderinfo PART MARKING* PACKAGE MSL TEMPERATURE RANGE PART NUMBER PAD OR BALL FINISH DEVICE FINISH CODE TYPE RATING (Note 2)
LTM4631EV#PBF Au (RoHS) LTM4631V e4 LGA 3 –40°C to 125°C LTM4631IV#PBF Au (RoHS) LTM4631V e4 LGA 3 –40°C to 125°C LTM4631EY#PBF SAC305 (RoHS) LTM4631Y e1 BGA 3 –40°C to 125°C LTM4631IY#PBF SAC305 (RoHS) LTM4631Y e1 BGA 3 –40°C to 125°C LTM4631IY SnPb (63/37) LTM4631Y e0 BGA 3 –40°C to 125°C Consult Marketing for parts specified with wider operating temperature • Recommended LGA and BGA PCB Assembly and Manufacturing ranges. *Device temperature grade is indicated by a label on the shipping Procedures: container. Pad or ball finish code is per IPC/JEDEC J-STD-609. www.linear.com/umodule/pcbassembly • Terminal Finish Part Marking: • LGA and BGA Package and Tray Drawings: www.linear.com/leadfree www.linear.com/packaging
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 23. 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, l 1.477 1.5 1.523 V VOUT2(DC) Line and Load 470µF POSCAP VIN = 12V, VOUT = 1.5V, IOUT = 0A to 10A
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, 200 mA 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 4 mA VIN = 12V, VOUT = 1.5V, Pulse-Skipping Mode 25 mA VIN = 12V, VOUT= 1.5V, Switching Continuous 65 mA Shutdown, RUN = 0, VIN = 12V 30 µA IS(VIN) Input Supply Current VIN = 5V, VOUT = 1.5V, IOUT = 10A 2.7 A VIN = 12V, VOUT = 1.5V, IOUT = 10A 1.2 A
Output Specifications
IOUT1(DC), IOUT2(DC) Output Continuous Current Range VIN = 12V, VOUT = 1.5V (Note 6) 0 10 A ΔVOUT1(LINE)/VOUT1 Line Regulation Accuracy VOUT = 1.5V, VIN from 4.5V to 15V l 0.01 0.025 %/V ΔVOUT2(LINE)/VOUT2 IOUT = 0A for Each Output, ΔVOUT1/VOUT1 Load Regulation Accuracy For Each Output, VOUT = 1.5V, 0A to 10A l 0.2 0.75 % ΔVOUT2/VOUT2 VIN = 12V (Note 6) 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 = 750kHz fS (Each Channel) Output Ripple Voltage Frequency VIN = 12V, VOUT = 1.5V, fSET = INTVCC (Note 4) 750 kHz fSYNC SYNC Capture Range 500 780 kHz (Each Channel) 4631fb For more information www.linear.com/LTM4631 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 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 Package PHoto Design Resources Related Parts