LTM8045 Inverting or SEPIC Module DC/DC Converter with Up to 700mA Output Current Fea T Descrip T n SEPIC or Inverting Topology The LTM 8045 is a Module (micromodule) DC/DC n Wide Input Voltage Range: 2.8V to 18V converter that can be configured as a SEPIC or inverting n Up to 700mA Output Current at V = 12V, converter by simply grounding the appropriate output rail. IN V = 2.5V or 2.5V In a SEPIC configuration the regulated output voltage can OUT n Up to 375mA Output Current at V = 12V, be above, below or equal to the input voltage. The LTM8045 IN V =15V or 15V includes power devices, inductors, control circuitry and OUT n 2.5V to 15V or 2.5V to 15V Output Voltage passive components. All that is needed to complete the n Selectable Switching Frequency: 200kHz to 2MHz design are input and output capacitors, and small resis- n Programmable Soft-Start tors to set the output voltage and switching frequency. n User Configurable Undervoltage Lockout Other components may be used to control the soft-start n 6.25mm 11.25mm 4.92mm BGA Package and undervoltage lockout. The LTM8045 is packaged in a compact (6.25mm 11.25mm) overmolded ball grid array (BGA) package suit- a T able for automated assembly by standard surface mount n Battery Powered Regulator equipment. The LTM8045 is available with SnPb (BGA) n Local Negative Voltage Regulator or RoHS compliant terminal finish. n Low Noise Amplifier Power L, LT, LTC, LTM, Linear Technology, the Linear logo, Module and PolyPhase are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Typical a T Use Two LTM8045s to Generate 5V LTM8045 Maximum Output Current V V V IN OUT V vs Input Voltage IN OUT 2.8VDC TO 18VDC 5V 800 RUN 4.7F 60.4k SS 700 22F RT FB 600 + SYNC V OUT 130k GND 500 400 2.5V OUT 3.3V 300 OUT LTM8045 5V OUT 8V OUT 200 V V 12V IN OUT OUT 15V OUT 100 RUN 2 4 6 8 10 12 14 16 18 100F INPUT VOLTAGE (V) SS FB 8045 TA01b RT 45.3k + SYNC V OUT 115k V OUT GND 5V 8045 TA01b 8045fc 1 For more information www.linear.com/LTM8045 OUTPUT CURRENT (mA) ion pplica ions pplica ion uresLTM8045 a Te Maxi Mu M r a T p c F T (Note 1) TOP VIEW V , RUN ...................................................................20V IN 5 RT, SYNC ....................................................................5V V V OUT IN BANK 1 BANK 4 SS, FB ......................................................................2.5V 4 + GND V (V = 0V) ...................................................16V OUT OUT 3 FB + BANK 3 RUN V (V = 0V) .................................................16V OUT OUT + 2 V OUT SYNC Maximum Internal Temperature ............................ 125C BANK 2 1 Maximum Solder Temperature .............................. 250C A B C D E F G H Storage Temperature.............................. 55C to 125C SS RT BGA PACKAGE 40-LEAD (11.25mm 6.25mm 4.92mm) T = 125C, = 28.7C/W, = 7.6C/W, JMAX JA JB = 40.3C/W, = 10.5C/W JCtop JCbottom VALUES DETERMINED PER JEDEC 51-9, 51-12 WEIGHT = 0.9g o r D i n F Ma T