FX5545G102 Vishay Industry Smallest and Low Profile DC/DC Boost Converter with High Output Density Power with an Adjustable Output Voltage FEATURES • Fully integrated DC/DC converter • Adjustable output voltage between 3.3V to 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 • 2.5V to 6V input range (1Li+ and 3-cell NiCd or NiMH cells) • Max output current of 500mA • Programmable PWM/PSM controls • Low output ripple • BGA/LGA construction • Temperature range: - 40°C to + 85°C • No external component 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 500mA of output current, an output voltage between 3.3V to 6V can be adjusted an external resistor according to the formula: 28.6 [KΩ] REXT [KΩ] = 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 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 - 40°C to + 85°C. APPLICATION • • • • • Cellular and cordless phones, PDAs and others Supply voltage source for low voltage chip sets Portable computers Battery back-up supplies Cameras ORDERING INFORMATION FX 5545 G102 FUNCTION SIZE SERIAL NUMBER Document Number: 10107 Revision 23-Jan-02 For technical questions, contact [email protected] For marketing questions, contact [email protected] www.vishay.com 13 FX5545G102 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 B 0.48 ± 0.01 [12.2 ± 0.25] A W L 0.58 ± 0.01 [14.7 ± 0.25] T L BOTTOM SIDE PIN CONFIGURATION (Bottom Side) 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, 6 3, 7 4, 8 5, 9 10 - 12 13, 17 14, 18 15, 16 19, 20 CONNECTION N/C SD PWM/PSM SYNC Vout N/C GND N/C Ext. Resistor Vin RECOMMENDED PAD PATTERN in inches [millimeters] A GND 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] www.vishay.com 14 For technical questions, contact [email protected] For marketing questions, contact [email protected] F A Document Number: 10107 Revision 23-Jan-02 FX5545G102 Vishay STANDARD ELECTRICAL SPECIFICATIONS PARAMETER UNIT Input Voltage Range VDC Insulation Test Voltage Resistance Leakage Current VAC Ω nA Output Power Voltage Temp. Coefficient Ripple and Noise W VDC %/°C mVpp General Switching Frequency Package Weight MHz gr. MIN TYP 60Hz 60sec VISO = 500VDC VISO = 500VDC 6 750 1 x 1011 5 1.5 3.3 to 6 DC to 20MHz 0.03 30 15 2 0.9 °C °C - 40 - 55 + 85 + 125 Vout Vs. Iout (Typ) Vout Vs. Vin (Typ) Vin = 3.6V; Ext Resistor = 7.5k; Vout = 5.0V Ext Resistor = 7.5k; Iout = 200mA 5.5 6 5.4 5.8 5.3 5.6 5.2 5.4 5.1 5.2 5 4.9 5 4.8 4.8 4.6 4.7 4.4 4.6 4.2 4.5 0 0.1 0.2 0.3 4 0.4 2 3 Iout (A) 4 5 6 Vin (V) ∆ Temp Vs. Iout Efficiency Vs. Iout (Typ) Above 25°C Ambient Temperature Vin = 3.6V; Ext Resistor = 7.5k; Vout = 5.0V 20 100 18 95 16 90 14 Efficiency (%) ∆ Temp (°C) MAX 2.5 Vout (V) Vout (V) Temperature Operation Storage CONDITION Vin = 3.6V 12 10 8 6 85 80 75 70 65 4 60 2 55 0 50 0 0.1 0.2 0.3 Iout (A) Document Number: 10107 Revision 23-Jan-02 0.4 0 0.1 0.2 0.3 0.4 Iout (A) For technical questions, contact [email protected] For marketing questions, contact [email protected] www.vishay.com 15