LTC3586/LTC3586-1 High Efficiency USB Power Manager with Boost, Buck-Boost and Dual Bucks Fae Tseru Dpircse Tnoi Power Manager The LTC 3586/LTC3586-1 are highly integrated power TM n High Efficiency Switching PowerPath Controller management and battery charger ICs for Li-Ion/Polymer TM with Bat-Track Adaptive Output Control and battery applications. They include a high efciency cur- Instant-On Operation rent limited switching PowerPath manager with automatic n Programmable USB or Wall Current Limit load prioritization, battery charger, ideal diode, and four (100mA/500mA/1A) synchronous switching regulators (two bucks, one buck- n Full Featured Li-Ion/Polymer Battery Charger with boost and one boost). Designed specically for USB Float Voltage of 4.1V (LTC3586-1) or 4.2V (LTC3586) applications, the LTC3586/LTC3586-1s switching power with 1.5A Maximum Charge Current manager automatically limits input current to a maximum n Internal 180m Ideal Diode Plus External Ideal Diode of either 100mA or 500mA for USB applications or 1A for Controller Powers Load in Battery Mode adapter-powered applications. n <30A No-Load Quiescent Current when Powered Unlike linear chargers, the LTC3586/LTC3586-1 switching from BAT architecture transmits nearly all of the power available from n Dual High Efciency Buck DC/DCs (400mA I ) OUT the USB port to the load with minimal loss and heat which n High Efciency Buck-Boost DC/DC (1A I ) OUT eases thermal constraints in small places. The two buck n High Efciency Boost DC/DC (800mA I ) OUT regulators can provide up to 400mA each, the buck-boost n Compact (4mm 6mm 0.75mm) 38-Pin QFN can deliver 1A, and the boost delivers at least 800mA. Package The LTC3586/LTC3586-1 are available in a low prole a acilpp Tsnoi (0.75mm) 38-pin 4mm 6mm QFN package. n , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. Digital Still Cameras PowerPath and Bat-Track are trademarks of Linear Technology Corporation. n HDD-Based MP3 Players, PDAs, GPS, PMPs All other trademarks are the property of their respective owners. Protected by U.S. Patents including 6522118, 6404251. n Other USB-Based Handheld Products T lacipy a acilpp Tnoi High Efficiency PowerPath Manager, Dual Buck, Buck-Boost and Boost USB/WALL TO OTHER Battery Charge Current vs USB COMPLIANT 4.5V TO 5.5V LOADS STEP-DOWN Battery Voltage (LTC3586) REGULATOR 700 CC/CV BATTERY CHARGE CURRENT 0V OPTIONAL CURRENT BATTERY 600 CONTROL CHARGER EXTRA CURRENT FOR FASTER CHARGING 500 CHARGE + 500mA USB CURRENT LIMIT Li-Ion T LTC3586/LTC3586-1 400 3.3V/20mA RTC/LOW ALWAYS ON LDO 300 POWER LOGIC 0.8V TO 3.6V/400mA 4 1 DUAL HIGH EFFICIENCY 200 MEMORY/ EN BUCKS 0.8V TO 3.6V/400mA CORE P 2 V = 5V BUS 100 5x MODE HIGH EFFICIENCY MODE 3 BATTERY CHARGER PROGRAMMED FOR 1A BUCK-BOOST 2.5V to 3.3V/1A I/O 0 2 SYSTEM 2.8 3 3.2 3.4 3.6 3.8 4 4.2 I LIM BATTERY VOLTAGE (V) 5V/800mA HIGH EFFICIENCY AUDIO/ 3586 TA01b 4 BOOST MOTOR FAULT 3586 TA01 3586fb CHARGE CURRENT (mA)LTC3586/LTC3586-1 a ulosb T e Mixa Mu M r a Tsgni p ni c no Farugi Tnoi (Notes 1, 5) V (Transient) t < 1ms, TOP VIEW BUS Duty Cycle < 1% ..........................................0.3V to 7V V , V , V , V , V (Static), 38 37 36 35 34 33 32 IN1 IN2 IN3 IN4 BUS I 1 31 GATE BAT, NTC, CHRG, FAULT, I , I , LIM0 LIM0 LIM1 I 2 30 CHRG LIM1 EN3, EN4, MODE, FB4, V .....................0.3V to 6V OUT4 LDO3V3 3 29 PROG FB1................... 0.3V to Lesser of 6V and (V + 0.3V) IN1 CLPROG 4 28 FB1 FB2 ................... 0.3V to Lesser of 6V and (V + 0.3V) IN2 NTC 5 27 V IN1 FB3, V ........... 0.3V to Lesser of 6V and (V + 0.3V) C3 IN3 V 6 26 SW1 OUT4 39 EN1, EN2 ................................0.3V to Lesser of 6V and V 7 25 SW2 OUT4 Max (V V BAT) + 0.3V SW4 8 24 V IN2 BUS, OUT, MODE 9 23 FB2 I ....................................................................3mA CLPROG FB4 10 22 V IN4 I , I ...........................................................50mA FAULT CHRG FB3 11 21 EN1 I ........................................................................2mA PROG V 12 20 EN2 C3 I ...................................................................30mA LDO3V3 13 14 15 16 17 18 19 I , I ............................................................600mA SW1 SW2 I , I , I ............................................................2A SW BAT VOUT I , I , I , I ...................................2.5A UFE PACKAGE SWAB3 SWCD3 SW4 VOUT3 38-LEAD (4mm 6mm) PLASTIC QFNs Operating Temperature Range (Note 2)....40C to 85C T = 125C, = 34C/W JMAX JA Junction Temperature (Note 3) ............................. 125C EXPOSED PAD (PIN 39) IS GND, MUST BE SOLDERED TO PCB Storage Temperature Range ...................65C to 125C ro D re ni Fro Ma Tnoi LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE LTC3586EUFE PBF LTC3586EUFE TRPBF 3586 38-Lead (4mm 6mm) Plastic QFN 40C to 85C LTC3586EUFE-1 PBF LTC3586EUFE-1 TRPBF 35861 38-Lead (4mm 6mm) Plastic QFN 40C to 85C Consult LTC Marketing for parts specied with wider operating temperature ranges. Consult LTC Marketing for information on non-standard lead based nish parts. For more information on lead free part marking, go to: