FX5545G101 Vishay Industry Smallest and Low Profile DC/DC Buck Converter with High Output Density Power with an Adjustable Output Voltage FEATURES * Fully integrated DC/DC converter * Adjustable output voltage between 1.5V to 3.6V by an external resistor * 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) * 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 up to 600mA of output current, an output voltage between 1.5V to 3.6V can be adjusted an external resistor according to the formula: 28.6 [K] REXT [K] = Vout - 1.3 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 * * * * * Cordless phones, PDAs and others Supply voltage source for low voltage chip sets Portable computers Battery back-up supplies Cameras ORDERING INFORMATION FX 5545 G101 FUNCTION SIZE SERIAL NUMBER PACKAGING-B1 = 10pcs in bulk; B5 = 50pcs in bulk; T1 = 13" reel; T2 = 7" reel. www.vishay.com 10 For technical questions, contact FunctionPAK@vishay.com For marketing questions, contact FunctionPAK.marketing@vishay.com Document Number: 10106 Revision 18-Apr-02 FX5545G101 Vishay DIMENSIONS in inches [millimeters] 0.1 0.01 [2.54 0.25] B 0.09 0.01 [2.29 0.25] 0.09 0.01 [2.27 0.25] T 0.071 0.004 [1.8 0.1] T1 0.022 [0.55] BGA LGA T1 C C A T A W A 0.48 0.01 [12.2 0.25] B 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 PWM/PSM SD Marked on Upper Side 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 Ext. Resistor GND RECOMMENDED PAD PATTERN in inches [millimeters] 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] A GND D F A TAPE AND REEL See Tape and Reel Information - Type A Document Number: 10106 Revision 18-Apr-02 For technical questions, contact FunctionPAK@vishay.com For marketing questions, contact FunctionPAK.marketing@vishay.com www.vishay.com 11 FX5545G101 Vishay STANDARD ELECTRICAL SPECIFICATIONS PARAMETER UNIT Input Voltage Range VDC Insulation Test Voltage Resistance Leakage Current VAC nA Output Power Voltage Temp. Coefficient Ripple and Noise W VDC %/C mVpp General Switching Frequency Package Weight MHz gr. Temperature Operation Storage CONDITION MIN 60Hz 60sec VISO = 500VDC VISO = 500VDC 6 750 1 x 1011 5 1.5 1.5 to 3.6 DC to 20MHz 0.03 30 15 2 0.9 C C - 40 - 55 + 85 + 125 Vout Vs. Vin (Typ) Vout Vs. Iout (Typ) Ext Resistor = 20k; 2.8 2.75 2.75 2.7 2.7 Vout (V) 2.8 2.65 Iout=300mA Iout=600mA Iout=100mA 2.65 2.6 2.6 2.55 2.55 2.5 2.5 0 0.2 0.4 2 0.6 3 4 5 6 7 Vin (V) Iout (A) Temp Vs. Iout Efficiency Vs. Iout Above 25C Ambient Temperature Vin = 3.6V; Ext Resistor = 20k; Vout = 2.7V 100 30 95 Vin=6v 25 90 85 20 Vin=3.6v Efficiency (%) Temp (C) MAX 2.7 Vin = 3.6V; Ext Resistor = 20k; Vout = 2.7V Vout (V) TYP 15 10 5 80 75 70 65 60 55 0 0 0.2 0.4 0.6 0.8 50 0 Iout (A) www.vishay.com 12 0.2 0.4 Iout (A) For technical questions, contact FunctionPAK@vishay.com For marketing questions, contact FunctionPAK.marketing@vishay.com 0.6 Document Number: 10106 Revision 18-Apr-02