FX5545G001 Vishay Industry Smallest and Lowest Profile Synchronous 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: - 40°C to + 85°C • 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 - 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 Digital cameras ORDERING INFORMATION FX 5545 G001 FUNCTIONPAK SIZE SERIAL NUMBER OUTPUT VOLTAGE-Example: 2.7V should be written as 2V7 as the V indicates the decimal point. www.vishay.com 4 For technical questions, contact [email protected] For marketing questions, contact [email protected] Document Number: 10101 Revision 25-Feb-02 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] A A W B 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 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] Document Number: 10101 Revision 25-Feb-02 F 1 For technical questions, contact [email protected] For marketing questions, contact [email protected] A www.vishay.com 5 FX5545G001 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. 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 DC to 20MHz 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 25°C 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 www.vishay.com 6 0.2 0.4 Iout (A) 0.6 0 0.2 0.4 0.6 Iout (A) For technical questions, contact [email protected] For marketing questions, contact [email protected] Document Number: 10101 Revision 25-Feb-02