LTM4625 20V , 5A Step-Down DC/DC IN Module Regulator FEATURES DESCRIPTION 2 n Complete Solution in <1cm (Single-Sided PCB) or The LTM 4625 is a complete 5A step-down switching 2 0.5cm (Dual-Sided PCB) mode Module (micromodule) regulator in a tiny 6.25mm n Wide Input Voltage Range: 4V to 20V 6.25mm 5.01mm BGA package. Included in the pack- n Input Voltage Down to 2.375V with External Bias age are the switching controller, power FETs, inductor and n 0.6V to 5.5V Output Voltage support components. Operating over an input voltage range n 5A DC Output Current of 4V to 20V or 2.375V to 20V with an external bias supply, n 1.5% Maximum Total DC Output Voltage Error the LTM4625 supports an output voltage range of 0.6V to Over Line, Load and Temperature 5.5V, set by a single external resistor. Its high efficiency n Current Mode Control, Fast Transient Response design delivers up to 5A continuous output current. Only n External Frequency Synchronization bulk input and output capacitors are needed. n Multiphase Parallel Current Sharing with The LTM4625 supports selectable discontinuous mode MultipleLTM4625s operation and output voltage tracking for supply rail se- n Output Voltage Tracking quencing. Its high switching frequency and current mode n Selectable Discontinuous Mode control enable a very fast transient response to line and n Power Good Indicator load changes without sacrificing stability. n Overvoltage, Overcurrent and Overtemperature Fault protection features include overvoltage, overcurrent Protection n and overtemperature protection. 6.25mm 6.25mm 5.01mm BGA Package The LTM4625 is available with SnPb or RoHS compliant APPLICATIONS terminal finish. n Telecom, Datacom, Networking and All registered trademarks and trademarks are the property of their respective owners. Industrial Equipment n Medical Diagnostic Equipment n Data Storage Rack Units and Cards n Test and Debug Systems TYPICAL APPLICATION 1.5V Output Efficiency vs Load Current 95 5A, 1.5V Output DC/DC Module Step-Down Regulator 90 V CLKIN PHMODE CLKOUT OUT V IN 1.5V 85 V V IN OUT 4V TO 20V 5A 47F 10F SV IN 80 RUN LTM4625 INTV PGOOD CC 75 MODE COMP TRACK/SS FB 70 0.1F FREQ GND SGND 40.2k 65 V = 5V IN V = 12V IN 4625 TA01a 60 0 1 2 3 4 5 LOAD CURRENT (A) 4625 TA01b Rev D 1 Document Feedback For more information www.analog.com EFFICIENCY (%)LTM4625 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1) (See Pin Functions, Pin Configuration Table) V , SV .................................................... 0.3V to 22V IN IN TOP VIEW RUN ........................................................... 0.3V to 22V CLKOUT CLKIN SV IN PGOOD, MODE, TRACK/SS, FREQ, PHMODE, V 5 IN CLKIN ....................................................0.3V to INTV SGND CC MODE FREQ 4 INTV CC Internal Operating Temperature Range RUN (Notes 2, 5) ............................................ 40C to 125C 3 GND PHMODE PGOOD TRACK/SS Storage Temperature Range .................. 65C to 150C 2 FB V OUT COMP Peak Solder Reflow Body Temperature ................. 245C 1 A B C D E BGA PACKAGE 25-LEAD (6.25mm 6.25mm 5.01mm) T = 125C, J = 17C/W, = 11C/W, JMAX Ctop JCbottom + = 22C/W, = 22C/W, JB BA JA DERIVED FROM 95mm 76mm PCB WITH 4 LAYERS JA VALUES DETERMINED PER JESD51-12, WEIGHT = 0.5g ORDER INFORMATION PART NUMBER PAD OR BALL FINISH PART MARKING* PACKAGE MSL TEMPERATURE RANGE TYPE RATING (Note 2) DEVICE FINISH CODE LTM4625EY PBF SAC305 (RoHS) LTM4625Y e1 BGA 3 40C to 125C LTM4625IY PBF SAC305 (RoHS) LTM4625Y e1 BGA 3 40C to 125C LTM4625IY SnPb (63/37) LTM4625Y e0 BGA 3 40C to 125C Consult Marketing for parts specified with wider operating temperature Recommended LGA and BGA PCB Assembly and Manufacturing ranges. *Pad or ball finish code is per IPC/JEDEC J-STD-609. Procedures LGA and BGA Package and Tray Drawings ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the specified internal operating temperature range (Note 2), otherwise specifications are at T = 25C. V = SV = 12V per the typical application shown on A IN IN the front page. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Switching Regulator Section: per Channel l V Input DC Voltage SV = V 4 20 V IN IN IN V Output Voltage Range l 0.6 5.5 V OUT V Output Voltage, Total C = 22F, C = 100F Ceramic, R = 40.2k, OUT(DC) IN OUT FB Variation with Line and Load MODE = INTV , I = 0A to 5A (Note 3) CC OUT l 40C to 125C 1.477 1.50 1.523 V V RUN Pin On Threshold V Rising 1.1 1.2 1.3 V RUN RUN I Input Supply Bias Current V = 12V, V = 1.5V, MODE = INTV 6 mA Q(SVIN) IN OUT CC V = 12V, V = 1.5V, MODE = GND 2 mA IN OUT Shutdown, RUN = 0, V = 12V 11 A IN I Input Supply Current V = 12V, V = 1.5V, I = 5A 0.75 A S(VIN) IN OUT OUT Rev D 2 For more information www.analog.com