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| FX5545G008 Vishay Low Profile 3mm DC/DC Buck Converter 0.8V to 4.5V*, 3A with 380W/in3 Power Density Efficiency up to 95% FEATURES * Fully integrated DC/DC converter * Advanced development of FX5545G305 * High efficiency over large load range * 100% duty cycle * Power density - more than 380W/inch3 * 1A shutdown current * 2.5V to 6V input range (1Li+ and 3-cell NiCd or NiMH cells) * 0.8V to 4.5V* output voltage * Programmable PWM/PSM controls * Low output ripple * BGA construction * Temperature range: - 40C to + 85C * No external components required * Output power 10W * Maximum current 3A * Low profile *Note: For higher putput voltage please consult factory at FunctionPAK@Vishay.com The DC/DC converter is a programmable topology synchronized Buck converter for today's continuous changing portable electronic market. The DC/DC converter provides flexibility of utilizing various battery configurations and chemistries such as NiCd, NiMH, or Li+ with an input voltage range of 2.5V to 6V. An additional flexibility is provided with topology programmability to power multiple loads such as power amplifiers, microcontrollers, or baseband logic IC's. For ultra-high efficiency, converters are designed to operate in synchronous rectified PWM mode under full load while transforming into externally controlled pulse-skipping mode (PSM) under light load. The DC/DC converter is available in 20-ports BGA 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 * Cordless phones, PDAs and others * Supply voltage source for low-voltage chip sets * Point of Load (POL) applications such as drivers for FPGA's, microprocessors, DSP's amplifiers, etc. * Portable computers * Battery back-up supplies * Cameras ORDERING INFORMATION FX FUNCTION SIZE CIRCUIT IDENTIFIER - G008 or G018 OUTPUT VOLTAGE - Example: 1.2V should be written as 1V2 as the V indicates the decimal point or ADJ for adjustable version - self selectable output voltage. G018ADJ is only available in the adjustable version for Vout = 0.9V - 1.3V. For design considerations please see ANF110 PACKAGING - B1 = 10pcs in bulk; B5 = 50pcs in bulk; T1 = 13" reel; T2 = 7" reel. For lead (Pb)-free solder please add E2 suffix. 5545 G008 www.vishay.com 22 For technical questions, contact FunctionPAK@vishay.com For marketing questions, contact FunctionPAK.marketing@vishay.com Document Number: 10126 Revision: 01-Mar-05 FX5545G008 Vishay B C A DIMENSIONS in inches [millimeters] L W A B C T Ball Diameter 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] 0.126 max [3.2 max] 0.03 0.001 [0.762 0.025] BOTTOM SIDE 20 19 18 17 16 15 14 13 12 11 10 9 8 4 7 3 6 2 5 1 W PIN CONFIGURATION* PIN Marked on Upper Side T L CONNECTION SD SYNC** Vref*** Vin PWM/PSM N/C GND Vout N/C GND *Note: Pin Description application note is available at www.vishay.com/doc?10119 For adjustable version please refer to Self Selectable Output Voltage application note which is available at www.vishay.com/doc?10116 **Note: if not used must be connected ti Vin. ***Note: N/C - If the output voltage is 0.9V and higher. For output voltage of 0.8V connect Vref to MCL4448 (Vishay RF PIN Diode). 1, 2 3, 7 4, 8 5, 9 6, 10 11, 12 13, 17 14, 18 15, 19 16, 20 Pin Configuration for Vo = 0.8V Pin Configuration for Vo = 0.9V - 4.5V RECOMMENDED PAD PATTERN in inches [millimeters] A 0.1 0.01 [2.54 0.25] D 0.03 0.001 [0.8 0.02] F 0.02 0.001 [0.5 0.02] D A F 1 A TAPE AND REEL See Tape and Reel Information - Type B A Document Number: 10126 Revision: 01-Mar-05 For technical questions, contact FunctionPAK@vishay.com For marketing questions, contact FunctionPAK.marketing@vishay.com www.vishay.com 23 FX5545G008 Vishay STANDARD ELECTRICAL SPECIFICATIONS PARAMETER Input Voltage Range Quiescent Current Soft Start Time SD, PWM/PSM,SYNC Logic High Logic Low Normal Mode PSM Mode Shutdown Mode Shutdown Time Insulation Test Voltage Resistance Leakage Current Output Power Voltage Voltage Tolerance UNIT VDC CONDITION MIN 2.5 PSM mode TSS for Vout = 3.3V TSS for Vout = 1.2V VH VL IDD IDD IDD TSS for Vout = 3.3V TSS for Vout = 1.2V 60Hz 60sec VISO = 500 VDC VISO = 500 VDC 2.4 0.8 750 250 1 4 0.6 750 1 x 1011 5 10 0.8 to 4.5 For Vout = 0.9V and above (using external diode BAR065V for Vout = 0.9V up to 1.3V) at 25C Ambient Temp. For Vout = 0.8V up to 1.3V using external diode MCL4448 at 25C Ambient Temp. DC to 20 MHz -3 -5 80 1.4 400 FSYNC/FOSC 1.2 - 40 - 55 Tj JA 150 82 1.5 + 85 + 125 +3 +5 0.15 200 4 2.6 TYP MAX 6 A ms V V A A A ms VAC nA W VDC % % Temp. Coefficient %/C Ripple and Noise mVpp General Package Weight gr. Oscillator Frequency KHz SYNC Range Temperature Operation C Storage C Operating Junction Temp. C Thermal Impedance C/WD* *Note: WD = Power Dissipated Rise Time Fall Time Rise Time (PWM mode): Vin = 6V; Vout = 3.3V; lout = 3A Fall Time (PWM mode): Vin = 6V; Vout = 3.3V; lout = 3A Rise Time (PWM mode): Vin = 6V; Vout = 1.2V; lout = 3A www.vishay.com 24 Fall Time (PWM mode): Vin = 6V; Vout = 1.2V; lout = 3A Document Number: 10126 Revision: 01-Mar-05 For technical questions, contact FunctionPAK@vishay.com For marketing questions, contact FunctionPAK.marketing@vishay.com FX5545G008 Vishay PWM MODE Vout Vs. lout* Vin = 4.0V 3.5 3.45 3.4 3.35 3.3 3.25 3.2 3.15 3.1 3.05 3 3.5 3.45 3.4 3.35 3.3 3.25 3.2 3.15 3.1 3.05 3 3 3.5 4 4.5 5 5.5 Vout Vs. Vin* Vout (V) 0 0.5 1 1.5 2 2.5 3 3.5 Vout (V) lout = 1A lout = 2A lout = 3A 6 6.5 7 lout (A) Vin (V) Above 25C Ambient Temperature Vin = 6.0V; Vout = 3.3V Temp Vs. lout* Efficiency Vs. Lout* Vout = 3.3A 60 100 95 90 Temp (C) 50 Efficiency (%) 0 0.5 1 1.5 2 2.5 3 3.5 40 30 20 10 0 85 80 75 70 65 60 0 0.5 1 1.5 2 2.5 3 3.5 D lout (A) lout (A) Vout Vs. lout* Vin = 4.0V 1.5 1.45 1.4 1.35 1.3 1.25 1.2 1.15 1.1 1.05 1 1.5 1.45 1.4 1.35 1.3 1.25 1.2 1.15 1.1 1.05 1 2 Vout Vs. Vin* Vin = 6V Vout (V) Vout(V) lout = 1A lout = 2A lout = 3A 0 0.5 1 1.5 2 2.5 3 3.5 3 4 5 6 7 lout (A) Vin (V) Temp Vs. lout* Above 25C Ambient Temperature Vin = 6.0V; Vout = 1.2V 60 100 90 80 70 60 50 40 30 20 10 0 Efficiency Vs. lout* Vin = 4.0V; Vout = 1.2V 40 30 20 10 0 0 0.5 1 1.5 2 2.5 3 3.5 Efficiency (%) 50 Vin = 4.0V Vin = 5.0V Temp (C) Temp (C) 0 0.5 1 1.5 2 2.5 3 3.5 lout (A) Iout (A) * Note: Measurements were taken with Power supply: ZUP 20-40 from Nemic Lambda; Electronic load: 6063B from Agilent; Multimeter Fluke 45 from Fluke and 34401 digital multimeter from Agilent; Scope: Infiniium 54815A from Agilent Document Number: 10126 Revision: 01-Mar-05 For technical questions, contact FunctionPAK@vishay.com www.vishay.com 25 FX5545G008 Vishay PSM MODE Vout Vs. lout* Vin = 4.0V 3.5 3.45 3.4 3.35 3.3 3.25 3.2 3.15 3.1 3.05 3.0 0 0.05 0.1 lout (A) 0.15 0.2 0.25 3.5 3.45 3.4 3.35 3.3 3.25 3.2 3.15 3.1 3.05 3 3 3.5 4 4.5 5 Vin (V) Vout Vs. Vin* Vin = 6V Vout (V) Vout (V) lout = 0.1A lout = 0.15A 5.5 6 6.5 Efficiency Vs. lout* Vin = 4.0V; Vout = 3.3V 100 90 80 70 60 50 40 30 20 10 0 Efficiency (%) 0 0.05 0.1 0.15 Iout (A) 0.2 0.25 Vout Vs. lout* Vin = 4.0V 1.5 1.45 1.4 1.35 1.3 1.25 1.2 1.15 1.1 1.05 3.2 0 0.02 0.04 0.06 0.08 lout (A) 0.1 0.12 0.14 0.16 1.5 1.45 1.4 1.35 1.3 1.25 1.2 1.15 1.1 1.05 1 1 Vout Vs. Vin* Vout (V) Vout (V) lout = 0.1A lout = 0.15A 2 3 4 Vin (V) 5 6 7 Efficiency Vs. lout* Vin = 4.0V; Vout = 1.2V 100 90 80 70 60 50 40 30 20 10 0 Efficiency (%) 0 0.02 0.04 0.06 0.08 Iout (A) 0.1 0.12 0.14 0.16 * Note: Measurements were taken with Power supply: ZUP 20-40 from Nemic Lambda; Electronic load: 6063B from Agilent; Multimeter Fluke 45 from Fluke and 34401 digital multimeter from Agilent; Scope: Infiniium 54815A from Agilent www.vishay.com 26 For technical questions, contact FunctionPAK@vishay.com For marketing questions, contact FunctionPAK.marketing@vishay.com Document Number: 10126 Revision: 01-Mar-05 |
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