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| SYNCHRONOUS BOOST DC/DC CONVERTER FSP3602 FEATURES Up to 96% Efficiency Low voltage start-up0.9V Shut-down current: < 1A Input voltage0.6V4.4V Output voltage 2.5V 4.3V (Up to 5V with Schottky) Low switch on resistance RDS(ON), Internal switch: 0.35 1.4MHz fixed frequency switching High switch on current: 1A Short-Circuit protection Low profile SOT23-6L package GENERAL DESCRIPTION The FSP3602 is high efficiency synchronous, step-up DC/DC converters optimized to provide a high efficient solution to medium power systems. The devices work under the input voltage between 0.6V and 4.4V with a 1.4MHz fixed frequency switching. These features minimizes overall solution footprint by allowing the use of tiny, low profile inductors and ceramic capacitors. The FSP3602 is capable of supplying an output voltage between 2.5V and 4.3V, the internal synchronous switch is desired to provide high efficiency without Schottky. The devices also featured providing 180mA from a single AA cell input or 400mA from a 2-cell AA with a 3V/3.3V output. The FSP3602 converter is available in the industry standard SOT23-6L power packages (or upon request). APPLICATIONS Digital cameras and MP3 Palmtop computers / PDAs Cellular phones Wireless handsets and DSL modems PC cards Portable media player PIN CONFIGURATION (Top View) VIN VOUT EN 6 5 4 1 SW 2 GND 3 FB Pin Number 1 2 3 4 5 6 Pin Name SW GND FB EN VOUT VIN Pin Function Switch Output Ground Feedback ON/OFF Control(High Enable) Output Input 1/5 2007-12-31 SYNCHRONOUS BOOST DC/DC CONVERTER BLOCK DIAGRAM FSP3602 ABSOLUTE MAXIMUM RATINGS Parameter Power Dissipation VIN VOUT VSW VEN Operating Temperature Range Lead Temperature (Soldering 10 sec.) Storage Temperature Range Rating Internally limited 0.6 ~ 4.4 2.5 ~ 5 0.6 ~ 5 1.0 ~ 4.4 - 30 ~ +85 + 300 - 65 ~ +125 Unit W V V V V 2/5 2007-12-31 SYNCHRONOUS BOOST DC/DC CONVERTER FSP3602 ELECTRICAL CHARACTERISTICS (NOTE 4) (VIN= 1.2V, VOUT= 3.3V, TA=25, Unless otherwise noted) Parameter Output Voltage Range (Adj.) Minimum Start-Up Voltage Minimum Operating Voltage Switching Frequency Max Duty Cycle Current Limit Delay to Output Feedback Voltage Feedback Input Current NMOS Switch Leakage PMOS Switch Leakage NMOS Switch On Resistance PMOS Switch On Resistance NMOS Current Limit Quiescent Current (Active) Shutdown Current En Input High En Input Low En Input Current VEN = 5.5V 0.01 VEN=0V, Not Including Switch Leakage 1 0.35 1 700 VFB = 1.25V VSW = 5V 1.165 VFB = 1.15V ILOAD = 1mA EN = VIN 1.1 80 Condition Min. 2.5 0.9 0.5 1.4 87 40 1.203 1 0.1 0.1 0.35 0.45 950 300 0.01 500 1 5 5 1.241 Typ. Max. 5 1.1 0.65 1.7 Unit V V V MHz % ns V nA A A mA A A V V A TYPICAL APPLICATION CIRCUIT 3/5 2007-12-31 SYNCHRONOUS BOOST DC/DC CONVERTER FSP3602 ORDERING INFORMATION FSP3602XXXX Package: C: SOT23-6L Output Voltage: Blank: ADJ Packing: A: Tape & Reel Temperature Grade: K: -30~85 MARKING INFORMATION UAYMX Internal Code Date Code: Y: Year (1=2001) M: Month (1~9, O, N, D) Part Number: FSP3602 4/5 2007-12-31 SYNCHRONOUS BOOST DC/DC CONVERTER FSP3602 PACKAGE INFORMATION D e1 6 5 4 E1 E A2 A e b C L Symbol A A1 A2 b C D E E1 L e e1 Dimensions In Millimeters Min. Max. 1.050 1.250 0.000 0.100 1.050 1.150 0.300 0.500 0.100 0.200 2.820 3.020 2.650 2.950 1.500 1.700 0.300 0.600 0.95 Bsc. 1.90 Bsc. 0 8 A1 1 2 3 Dimensions In Inches Min. Max. 0.041 0.049 0.000 0.004 0.041 0.045 0.012 0.020 0.004 0.008 0.111 0.119 0.104 0.116 0.060 0.068 0.012 0.024 0.038 Bsc. 0.076 Bsc. 0 8 5/5 2007-12-31 |
Price & Availability of FSP3602
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