FX5545G001 Vishay Industry Smallest and Lowest Profile Synchronous 1.5W 0.6A DC/DC Buck 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 * 2.7V to 6V input range (1Li+ and 3-cell NiCd or NiMH cells) * 1.5V to 3.6V output voltage with max output current of 600mA * 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 buck converter solution for the latest one-cell lithium ion cellular phones. Its input voltage is between 2.7V to 6V, capable of delivering 600mA of output current at 1.5V to 3.6V. 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 20mV. 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 5545 G001 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. Document Number: 10101 Revision 27-Nov-02 For technical questions, contact FunctionPAK@vishay.com For marketing questions, contact FunctionPAK.marketing@vishay.com www.vishay.com 5 FX5545G001 Vishay DIMENSIONS in inches [millimeters] B 0.09 0.01 [2.29 0.25] C 0.09 0.01 [2.27 0.25] T 0.071 0.004 [1.8 0.1] T1 0.022 [0.55] C A BGA LGA T 0.1 0.01 [2.54 0.25] B A W A 0.48 0.01 [12.2 0.25] T1 W L 0.58 0.01 [14.7 0.25] T L BOTTOM SIDE PIN CONFIGURATION* 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 SD Marked on Upper Side PWM/PSM SYNC Vin Vout PIN 1, 2 3, 7 4, 8 5, 9 6, 10 11, 12 13, 17 14, 18 15, 19 16, 20 CONNECTION SD SYNC N/C Vin PWM/PSM N/C GND Vout N/C GND GND RECOMMENDED PAD PATTERN in inches [millimeters] A *Note: Pin Description application note is available on page 32. D A D F 0.1 0.01 [2.54 0.25] 0.03 0.002 [0.8 0.05] 0.02 0.002 [0.5 0.05] F 1 A TAPE AND REEL See Tape and Reel Information - Type A www.vishay.com 6 For technical questions, contact FunctionPAK@vishay.com For marketing questions, contact FunctionPAK.marketing@vishay.com Document Number: 10101 Revision 27-Nov-02 FX5545G001 Vishay STANDARD ELECTRICAL SPECIFICATIONS PARAMETER UNIT Input Voltage Range VDC Insulation Test Voltage Resistance Leakage Current VAC nA Output Power Voltage Voltage Tolerance Temp. Coefficient Ripple and Noise W VDC % %/C mVpp General Switching Frequency Package Weight MHz gr. Temperature Operation Storage CONDITION MIN TYP MAX 2.7 60Hz 60sec VISO = 500VDC VISO = 500VDC 6 750 1 x 1011 5 1.5 1.5 to 3.6 at 25C Ambient Temperature -5 DC to 20MHz +5 0.03 30 15 2 0.9 C C - 40 - 55 + 85 + 125 Vout Vs. Vin (Typ) Vout Vs. Iout (Typ) Vin = 3.6V; Vout = 2.7V 2.8 2.8 2.75 2.75 2.7 2.7 Vout (V) Vout (V) Iout=300mA 2.65 2.6 Iout=100mA 2.65 2.6 2.55 2.55 2.5 2.5 0 0.2 0.4 2 0.6 3 4 Iout (A) Temp Vs. Iout 6 7 Efficiency Vs. Iout Above 25C Ambient Temperature Vin = 3.6V; Vout = 2.7V 30 100 95 Vin=6v 25 90 85 20 Efficiency (%) Temp (C) 5 Vin (V) 15 10 Vin=3.6v 80 75 70 65 60 5 55 0 50 0 0.2 Document Number: 10101 Revision 27-Nov-02 0.4 Iout (A) 0.6 0 0.2 0.4 0.6 Iout (A) For technical questions, contact FunctionPAK@vishay.com For marketing questions, contact FunctionPAK.marketing@vishay.com www.vishay.com 7