FX5545G201 Vishay Industry Smallest and Low Profile 3W 1000mA DC/DC Buck Converter with High Output Power Density FEATURES • Fully integrated DC/DC converter • High efficiency over large load range • 2MHz switching frequency • 100% duty cycle • Power density - more than 100W/inch3 • 1uA shutdown current • 2.7V to 6V input range (1Li+ and 3-cell NiCd or NiMH cells) • 1.35V to 4.5V* output voltage • Programmable PWM/PSM controls • Low output ripple • BGA/LGA construction • Temperature range: - 40°C to + 85°C • No external components needed • Output power 3W • Maximum current 1.0A • Low profile *Note: For higher output voltage please consult factory at [email protected] 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 1000mA 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 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 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 • Point of Load (POL) applications such as drivers for FPGA’s, microprocessors, DSP’s amplifiers, etc. • Cordless phones, PDAs and others • Supply voltage source for low-voltage chip sets • Portable computers • Battery back-up supplies • Cameras • Routers • Fiber optics • LANS • Image processing ORDERING INFORMATION FX 5545 G201 FUNCTION 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: 10104 Revision 14-Jun-04 For technical questions, contact [email protected] For marketing questions, contact [email protected] www.vishay.com 31 FX5545G201 Vishay 0.48 ± 0.01 [12.2 ± 0.25] A 0.1 ± 0.01 [2.54 ± 0.25] B 0.09 ± 0.01 [2.29 ± 0.25] C 0.09 ± 0.01 [2.27 ± 0.25] T 0.12 max [3 max] Ball Diameter 0.03 ± 0.001 [0.762 ± 0.025] A W W L 0.58 ± 0.01 [14.7 ± 0.25] C A T L B DIMENSIONS in inches [millimeters] PIN CONFIGURATION* 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 Marked on Upper Side *Note: Pin Description application note is available on page 52. RECOMMENDED PAD PATTERN in inches [millimeters] 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 A BOTTOM SIDE D A D F 0.1 ± 0.01 [2.54 ± 0.25] 0.03 ± 0.001 [0.8 ± 0.02] 0.02 ± 0.001 [0.5 ± 0.02] F A TAPE AND REEL See Tape and Reel Information - Type B www.vishay.com 32 For technical questions, contact [email protected] For marketing questions, contact [email protected] Document Number: 10104 Revision 14-Jun-04 FX5545G201 Vishay STANDARD ELECTRICAL SPECIFICATIONS PARAMETER UNIT CONDITION Input Voltage Range Quiescent Current Soft Start Time VDC µA ms PSM mode Tss SD, PWM/PSM, SYNC Logic High Logic Low Normal Mode PSM Mode Shutdown Mode Shutdown Time V V µA µA µA ms VH VL IDD IDD IDD TSS 2.4 Insulation Test Voltage Resistance Leakage Current VAC Ω nA 60Hz 60sec VISO = 500VDC VISO = 500VDC 750 1 x 1011 Output Power Voltage Voltage Tolerance Temp. Coefficient Ripple and Noise W VDC % %/°C mVpp General Package Weight MIN TYP 2.7 6 200 5 0.8 750 250 1 9 5 3 1.35 to 4.5 at 25°C Ambient Temperature -3 3 0.03 DC to 20MHz 35 gr. Oscillator Frequency SYNC Range 1.3 MHz 2 FSYNC/FOSC Temperature Operation Storage Operating Junction Temp. Thermal Impedance MAX °C °C °C °C/WD* 1.2 1.5 - 40 - 55 + 85 + 125 Tj θJA 150 82 Note: WD = Power Dissipated Rise Time Rise Time (PWM mode): Vin = 6V; Vout = 3.3V; Iout = 1A Document Number: 10104 Revision 14-Jun-04 Fall Time Fall Time (PWM mode): Vin = 6V; Vout = 3.3V; Iout = 1A For technical questions, contact [email protected] For marketing questions, contact [email protected] www.vishay.com 33 FX5545G201 Vishay PWM MODE Vout Vs. Iout* Vout Vs. Vin* Vin = 3.6V Iout = 600mA 3.5 3.5 3.45 3.45 3.4 Vout (V) Vout (V) 3.4 3.35 3.3 3.25 3.35 3.3 3.25 3.2 3.2 3.15 3.15 3.1 3.1 0 0.2 0.4 0.6 0.8 1 3 1.2 3.5 4 4.5 Iout (A) ∆ Temp. Vs. Iout* 12 Efficiency (%) ∆ Temp (°C) 10 Vin = 3.6V 6 4 2 0.4 6.5 0.6 0.8 1 100 95 90 85 80 75 70 65 60 55 50 0 0.2 6 Vin = 3.6V; Vout = 3.3V 14 0 5.5 Efficiency Vs. Iout* Above 25°C Ambient Temperature 8 5 Vin (V) 1.2 0 0.2 0.4 0.6 Iout (A) 0.8 1 1.2 Iout (A) Vout Vs. lout* lout = 0.05A Vin = 6V 3.5 3.5 3.45 3.45 Vout (V) Vout (V) PSM MODE Vout Vs. Vin* 3.4 3.35 3.4 3.35 3.3 3.3 3.25 3.25 3.2 3.2 3 4 5 Vin (V) 7 6 0 0.05 0.1 0.15 Iout (A) 0.2 0.25 Efficiency (%) Efficiency Vs. Iout* 100 90 80 Vin = 4V Vin = 6V 70 60 50 40 30 20 10 0 0 0.05 0.1 0.15 0.2 0.25 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 www.vishay.com 34 For technical questions, contact [email protected] For marketing questions, contact [email protected] Document Number: 10104 Revision 14-Jun-04