LTC3406ABES5#TRMPBF Analog Devices

LTC3406AB 1.5MHz, 600mA Synchronous Step-Down Regulator in ThinSOT Fea T Descrip T n High Efficiency: Up to 96% The LTC 3406AB is a high efficiency monolithic synchro- n 600mA Output Current nous buck regulator using a constant frequency, current n 2.5V to 5.5V Input Voltage Range mode architecture. Supply current with no load is 200A, n 1.5MHz Constant Frequency Operation dropping to <1A in shutdown. The 2.5V to 5.5V input n No Schottky Diode Required voltage range makes the LTC3406AB ideally suited for n Low Dropout Operation: 100% Duty Cycle single Li-Ion battery-powered applications. 100% duty n Low Quiescent Current: 200A cycle provides low dropout operation, extending battery n 2% 0.6V Reference run time in portable systems. PWM pulse skipping mode n Shutdown Mode Draws <1A Supply Current operation provides very low output ripple voltage for noise n Internal Soft-Start Limits Inrush Current sensitive applications. Refer to LTC3406A for applications n Current Mode Operation for Excellent Line and that require Burst Mode operation. Load Transient Response Switching frequency is internally set at 1.5MHz, allowing n Overtemperature Protected the use of small surface mount inductors and capacitors. TM n Low Profile (1mm) ThinSOT Package The internal synchronous switch increases efficiency and eliminates the need for an external Schottky diode. Low a T output voltages are easily supported with the 0.6V feedback n Cellular Telephones reference voltage. The LTC3406AB is available in a low n Satellite and GPS Receivers profile (1mm) ThinSOT package. n Wireless and DSL Modems L, LT, LTC, LTM and Burst Mode are registered trademarks of Linear Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property n Digital Still Cameras of their respective owners. Protected by U.S. Patents including 5481178, 6580258. n Media Players n Portable Instruments Typical a T Efficiency vs Load Current 100 V = 1.8V OUT 2.2H 90 1.8V, 600mA V IN V SW IN V OUT 22pF 80 4.7F LTC3406AB 10F CER 70 CER RUN V 60 FB 619k GND 50 309k 40 3406AB TA09 30 V = 2.7V IN V = 3.6V IN 20 V = 4.2V IN 10 0.1 1 10 100 1000 OUTPUT CURRENT (mA) 3406B TA14 3406abfb 1 For more information www.linear.com/LTC3406AB EFFICIENCY (%) ion pplica ions pplica ion uresLTC3406AB a Te Maxi Mu M r a T Gs p in Fi G T (Note 1) TOP VIEW Input Supply Voltage ....................................0.3V to 6V RUN 1 5 V FB RUN, V Voltages .......................................0.3V to V FB IN GND 2 SW Voltage (DC) ........................... 0.3V to (V + 0.3V) IN SW 3 4 V IN P-Channel Switch Source Current (DC) S5 PACKAGE (Note 7) ................................................................800mA 5-LEAD PLASTIC TSOT-23 T = 125C, = 250C/W, = 90C/W N-Channel Switch Sink Current (DC) (Note 7) .....800mA JMAX JA JC Peak SW Sink and Source Current (Note 7) .............1.3A Operating Temperature Range (Note 2)....40C to 85C Junction Temperature (Notes 3, 6)........................ 125C Storage Temperature Range ...................65C to 150C Lead Temperature (Soldering, 10 sec) .................. 300C Der in F Ma T LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE LTC3406ABES5 PBF LTC3406ABES5 TRPBF LTCXZ 5-Lead Plastic TSOT-23 40C to 85C Consult LTC Marketing for parts specified with wider operating temperature ranges. Consult LTC Marketing for information on non-standard lead based finish parts. For more information on lead free part marking, go to: