LTM8052/LTM8052A 36V , 5A, 2-Quadrant IN CVCC Step-Down Module Regulator FEATURES DESCRIPTION n Complete Step-Down Switch Mode Power Supply The LTM 8052/LTM8052A is a 36V , 5A, 2-quadrant IN n CVCC: Constant-Voltage Constant-Current constant-voltage, constant-current (CVCC) step-down n Module regulator. Included in the package are the 2-Quadrant: Sources and Sinks Output Current n switching controller, power switches, inductor and support Adjustable Output Current n components. Operating over an input voltage range of 6V to Wide Input Voltage Range: 6V to 36V n 36V, the LTM8052/LTM8052A supports an output voltage 1.2V to 24V Output Voltage n range of 1.2V to 24V. The LTM8052/LTM8052A is able to Forced Continuous Operation n sink or source current to maintain voltage regulation up to Selectable Switching Frequency: 100kHz to 1MHz n the positive and negative current limits. This output current (e4) RoHS Compliant Package with Gold Pad Finish n limit can be set by a control voltage, a single resistor or a Programmable Soft-Start thermistor. LTM8052 features a 125% output overvoltage n Compact (11.25mm 15mm 2.82mm) Surface protection, while LTM8052A does not, allowing operation Mount LGA and (11.25mm 15mm 3.42mm) when the output is above the target regulation point. BGA Packages The LTM8052/LTM8052A is packaged in a compact (11.25mm 15mm 2.82mm) overmolded land grid ar- APPLICATIONS ray (LGA) and ball grid array (BGA) package suitable for n Constant-Frequency Voltage Regulation Even at automated assembly by standard surface mount equip- No Load ment. The LTM8052/LTM8052A are available with SnPb n Peltier Driver (BGA) or RoHS compliant terminal finish. n Battery Tester PART NUMBER BEST FOR n Battery/Supercap Charging and Cell Balancing LTM8052 Sinking and sourcing output current for voltage n Motor Drive Power Regulator regulation primarily. n High Power LED Drive LTM8052A Sinking and sourcing output current for current L, LT, LTC, LTM, Linear Technology, the Linear logo and Module are registered trademarks of regulation primarily. Linear Technology Corporation. All other trademarks are the property of their respective owners. LTM8026 Sourcing more than 3A of output current. Protected by U.S. Patents including 7199560, 7321203 and others pending. (Less than 3A maximum consider LTM8025.) Click to view associated TechClip Videos. TYPICAL APPLICATION Output Voltage vs Output Current 5A, 2.5V (2-Quadrant) Module Voltage Regulator 3.5 LTM8052A MAINTAINS CURRENT REGULATION 3.0 LTM8052 TURNS OFF AT LTM8052 V OUT V * IN OUTPUT OVERVOLTAGE 2.5V V V IN OUT 6V TO 36V 2.5 510k 5A 10F RUN 2.0 SS V REF 100F SYNC CTL I OPTIONAL + 1.5 INPUT COMP CTL T 330F PROTECTION RT GND ADJ 1.0 90.9k 9.09k 0.5 0 8052 TA01a *INPUT VOLTAGE PROTECTION MAY BE NECESSARY WHEN THE 10 5 0 5 10 LTM8052 IS SINKING CURRENT (SEE APPLICATIONS INFORMATION) LOAD CURRENT (A) 8052 TA01b 8052fg 1 For more information www.linear.com/LTM8052 OUTPUT VOLTAGE (V)LTM8052/LTM8052A ABSOLUTE MAXIMUM RATINGS (Note 1) V ............................................................................40V IN Current Into RUN Pin ............................................100A ADJ, RT, COMP, CTL I, CTL T, V ...........................3V REF Internal Operating Temperature Range .. 40C to 125C V ..........................................................................25V OUT Peak Solder Reflow Body Temperature ................. 245C RUN, SYNC, SS ...........................................................6V Storage Temperature.............................. 55C to 125C PIN CONFIGURATION TOP VIEW TOP VIEW 8 8 7 SYNC 7 SYNC BANK 2 GND BANK 2 GND RUN RUN 6 6 5 5 4 4 BANK 1 BANK 1 3 3 V BANK 3 V BANK 3 OUT OUT 2 2 V V IN IN 1 1 A B C D E F G H J K L A B C D E F G H J K L LGA PACKAGE BGA PACKAGE 81-LEAD (15mm 11.25mm 2.82mm) 81-LEAD (15mm 11.25mm 3.42mm) = 125C, = 18.6C/W, = 5.4C/W, = 5.6C/W, = 10.8C/W = 125C, = 18.6C/W, = 5.4C/W, = 5.6C/W, = 10.8C/W T T JMAX JA JC(bottom) JB JC(top) JMAX JA JC(bottom) JB JC(top) PCB WEIGHT = 1.4 GRAMS, VALUES DERIVED FROM A 4-LAYER 7.62cm 7.62cm PCB WEIGHT = 1.4 GRAMS, VALUES DERIVED FROM A 4-LAYER 7.62cm 7.62cm 8052fg 2 For more information www.linear.com/LTM8052 CTL T CTL I V REF RT COMP SS ADJ CTL T CTL I V REF RT COMP SS ADJ