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| FX5545G002 Vishay Industry Smallest and Lowest Profile Synchronous 1.5W 0.5A DC/DC Boost Converter with High Output Density Power FEATURES * Fully integrated DC/DC converter * High efficiency over large load range * 2MHz switching frequency * 100% duty cycle * Power Density- more than 80W/inch3 * 1uA shutdown current * 2.5V to 6V input range (1 Li+ and 3-cell NiCd or NiMH cells) * 3.3V to 6V output voltage with max. output current of 500mA * Programmable PWM/PSM controls * Low output ripple * BGA/LGA construction * Temperature range: - 40C to 85C * No external components needed * Low profile The DC/DC converter provides fully integrated synchronous boost converter solution for the latest one-cell lithium ion cellular phones. Its input voltage is between 2.5V to 6V, capable of delivering up to 500mA of output current at 3.3V to 6V. The DC/DC converter combines the 2MHz-switching controller with fully integrated passive components needed to deliver the smallest and most efficient converter available today. The high switching frequency minimizes the output capacitance with peak to peak output ripple as low as 25mV. The DC/DC converter delivers efficiency up to 95%. The programmable pulse-skipping mode (PSM) maintains this high efficiency even during the standby and idle modes to increase overall battery life and talktime. In order to extract the last ounce of power from the battery, the DC/DC converter is designed with 100% duty cycle control for this mode. This function enables the DC/DC converter to operate like a saturated linear regulator delivering the highest potential output voltage for longer talk time. The DC/DC converter is available in 20-ports BGA/LGA package. In order to satisfy the stringent ambient temperature requirements, the DC/DC converter is designed to handle the industrial temperature range of - 40C to + 85C. APPLICATION * * * * * * * * * Cellular and cordless phones, PDAs and others Supply voltage source for low voltage chip sets Portable computers Battery back-up supplies Digital cameras Routers Fiber optics LANS Image processing ORDERING INFORMATION FX FUNCTIONPAK SIZE CIRCUIT IDENTIFIER OUTPUT VOLTAGE-Example: 2.7V should be written as 2V7 as the V indicates the decimal point, or ADJ for adjustable version - self selectable output voltage. PACKAGING-B1 = 10pcs in bulk; B5 = 50pcs in bulk; T1 = 13" reel; T2 = 7" reel. 5545 G002 www.vishay.com 8 For technical questions, contact FunctionPAK@vishay.com For marketing questions, contact FunctionPAK.marketing@vishay.com Document Number: 10100 Revision 27-Nov-02 FX5545G002 Vishay DIMENSIONS in inches [millimeters] L W A B C T T1 B C A LGA 0.58 0.01 [14.7 0.25] 0.48 0.01 [12.2 0.25] 0.1 0.01 [2.54 0.25] 0.09 0.01 [2.29 0.25] 0.09 0.01 [2.27 0.25] L W 0.022 [0.55] BOTTOM SIDE 20 19 18 17 16 15 14 13 12 11 10 8 4 7 3 6 2 9 5 1 PIN CONFIGURATION* Marked on Upper Side SD PWM/PSM SYNC Vin Vout PIN 1 2, 6 3, 7 4, 8 5, 9 10 - 12 13, 17 14 - 16 18 19, 20 T1 0.071 0.004 [1.8 0.1] BGA T A CONNECTION N/C SD PWM/PSM SYNC Vout N/C GND N/C N/C Vin GND *Note: Pin Description application note is available on page 32. A RECOMMENDED PAD PATTERN in inches [millimeters] A 0.1 0.01 [2.54 0.25] D 0.03 0.002 [0.8 0.05] F 0.02 0.002 [0.5 0.05] F D 1 A TAPE AND REEL See Tape and Reel Information - Type A Document Number: 10100 Revision 27-Nov-02 For technical questions, contact FunctionPAK@vishay.com For marketing questions, contact FunctionPAK.marketing@vishay.com www.vishay.com 9 T FX5545G002 Vishay STANDARD ELECTRICAL SPECIFICATIONS PARAMETER Input Voltage Range Insulation Test Voltage Resistance Leakage Current Output Power Voltage Voltage Tolerance Temp. Coefficient Ripple and Noise General Switching Frequency Package Weight Temperature Operation Storage UNIT VDC VAC nA W VDC % %/C mVpp MHz gr. C C - 40 - 55 60Hz 60sec VISO = 500VDC VISO = 500VDC CONDITION MIN 2.5 750 1 x 1011 5 1.5 3.3 to 6 at 25C Ambient Temperature DC to 20MHz -5 25 2 0.9 + 85 + 125 +5 0.03 TYP MAX 6 Vout Vs. Iout Vin = 3.6V; Vout = 5V 5.5 5.4 5.3 5.2 5.1 Vout Vs. Vin Iout = 200mA 6 5.8 5.6 5.4 5.2 Vout (V) Vout (V) 5 4.9 4.8 4.7 4.6 4.5 0 0.1 0.2 0.3 0.4 5 4.8 4.6 4.4 4.2 4 2 3 4 5 6 Iout (A) Vin (V) Temp Vs. Iout Above 25C Ambient Temperature 20 18 16 14 Efficiency Vs. Iout Vin = 3.6V; Vout = 5V 100 95 90 Efficiency (%) 85 80 75 70 65 60 55 50 Temp (C) 12 10 8 6 4 2 0 0 0.1 0.2 0.3 0.4 0 0.1 0.2 0.3 0.4 Iout (A) Iout (A) www.vishay.com 10 For technical questions, contact FunctionPAK@vishay.com For marketing questions, contact FunctionPAK.marketing@vishay.com Document Number: 10100 Revision 27-Nov-02 |
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