ETR3101-F01 XCL206 Evaluation Board `micro-DC/DC' Step-down DC/DC Converter with Integrated Multilayer Inductor USER MANUAL: XCL206B123-EVB XCL206B153-EVB XCL206B183-EVB XCL206B253-EVB XCL206B2L3-EVB XCL206B303-EVB XCL206B333-EVB (VOUT = 1.2V) (VOUT = 1.5V) (VOUT = 1.8V) (VOUT = 2.5V) (VOUT = 2.85V) (VOUT = 3.0V) (VOUT = 3.3V) XCL206 Evaluation Board Inductor Built-in Step-Down DC/DC Converters WARNING Torex Semiconductor does not guarantee that all samples will perform in exactly the same way and we recommend that you always consult our product data sheets for the minimum and maximum specifications. XCL206 DATASHEET www.torex.co.jp It is also important that you evaluate all our products carefully before mass production and in case of any doubt, please contact your Torex representative. Important Notes: The operating temperature range for this IC is -20~+85. The operating DC input voltage range is from 2.0V to 6.0V. If an input voltage higher than 6.0V is applied, the operation of this IC cannot be guaranteed. Moreover, if a voltage higher than 6.5V is applied the IC may be permanently damaged. At the output of the IC, if the selected load causes the IC to supply a continuous current higher than the maximum rated current (600mA), the IC may be damaged. CAUTION ENGINEERING EVALUATION PURPOSES ONLY This evaluation board is made for the purpose of the XCL206 product evaluation. It is strictly prohibited to use this evaluation board for any other purpose. 2 XCL206 Evaluation Board Inductor Built-in Step-Down DC/DC Converters CONTENTS 1. INTRODUCTION ................................................................................................4 2. QUICK START GUIDE..........................................................................................5 2.1. CE pin (XCL206series)....................................................................................5 3. SCHEMATIC, BOM AND PCB LAYOUT...................................................................5 3.1. Schematic.....................................................................................................5 3.2. Bill of Materials...............................................................................................6 3.3. PCB layout ....................................................................................................7 4. TYPICAL CHARACTERISTICS............................................................................8 4.1. XCL206B123-EVB..........................................................................................8 4.2. XCL206B153-EVB...........................................................................................9 4.3. XCL206B183-EVB........................................................................................10 4.4. XCL206B253-EVB........................................................................................11 4.5. XCL206B2L3-EVB........................................................................................12 4.6. XCL206B303-EVB........................................................................................13 4.7. XCL206B333-EVB........................................................................................14 3 XCL206 Evaluation Board Inductor Built-in Step-Down DC/DC Converters Chapter 1: INTRODUCTION The XCL206 series is a synchronous step-down DC/DC converter which integrates an inductor and a control IC in one tiny package (2.5mmx2.0mm, H=1.0mm). A stable power supply with an output current of 600mA is configured using only two capacitors connected externally. Operating voltage range is from 2.0V to 6.0V. Output voltage is internally set in a range from 0.8V to 4.0V in increments of 0.05V. The device is operated by 3.0MHz, and includes 0.42P-channel driver transistor and 0.52N-channel switching transistor. The XCL206 series has automatic PWM/PFM switching control, allowing fast response, low ripple and high efficiency over the full range of loads (from light load to heavy load). During stand-by, the device is shutdown to reduce current consumption to as low as 1.0A or less. With the built-in UVLO (Under Voltage Lock Out) function, the internal driver transistor is forced OFF when input voltage becomes 1.4Vor lower. XCL206B series provide short-time turn-on by the soft start function internally set in 0.25ms (TYP). XCL206B integrate CL auto discharge function which enables the electric charge stored at the output capacitor CL to be discharged via the internal auto-discharge switch located between the LX and VSS pins. When the devices enter stand-by mode, output voltage quickly returns to the VSS level as a result of this function. Symbol Input Voltage VIN Output Voltage VOUT Output Current IOUT Value Unit ~ 6.0 V 1.2V, 1.5V, 1.8V, 2.5V, 2.85V, 3.0V, 3.3V 600 V mA Capacitor 6.0mm Parameter IC Capacitor 2.5mm 4 XCL206 Evaluation Board Inductor Built-in Step-Down DC/DC Converters Chapter 2: QUICK START GUIDE 2.1. CE pin (XCL206 series) To enable the IC, connect the Chip Enable (CE) pin to VIN or to any other source voltage between 0.65V and 6V. To disable the IC, connect the CE pin to GND or to any other voltage lower than 0.25V. The XCL206 always operates in PWM/PFM mode. At low to medium output currents, the XCL206 will use the more efficient PFM (Pulse Frequency Modulation) mode. In PFM mode, the device switches less often, which means that the XCL206 will have a very high efficiency over the whole load range. Because of some clever implementation, in PFM mode, the XCL206 combines a high efficiency with a very low output voltage ripple (usually below 15mVpp over the whole range of input voltage values). Chapter 3: SCHEMATIC, BOM AND PCB LAYOUT 3.1. Schematic Below is the schematic of the XCL evaluation board. CE * "L1 and Lx", and "L2 and VOUT" are connected by wiring. 5 XCL206 Evaluation Board Inductor Built-in Step-Down DC/DC Converters 3.2. Bill of Materials As you will notice on your evaluation board, the XCL circuit only requires two small (EIA size 0603) ceramic capacitors. So it hardly takes more space than a standard LDO voltage regulator circuit, while exhibiting a much higher efficiency. XCL206B123-EVB Qty 1 1 Ref CIN CL Value 4.7F 10F 1 IC 1.2V Description Ceramic 10V B, X5R Ceramic 10V B, X5R Synchronous Step-Down Micro DC/DC Package 1608 (0603-EIA) 1608 (0603-EIA) Manufacturer Taiyo Yuden Taiyo Yuden Part Number LMK107BJ475KA LMK107BJ106MA CL2025 Torex XCL206B123AR-G Description Ceramic 10V B, X5R Ceramic 10V B, X5R Synchronous Step-Down Micro DC/DC Package 1608 (0603-EIA) 1608 (0603-EIA) Manufacturer Taiyo Yuden Taiyo Yuden Part Number LMK107BJ475KA LMK107BJ106MA CL2025 Torex XCL206B153AR-G Description Ceramic 10V B, X5R Ceramic 10V B, X5R Synchronous Step-Down Micro DC/DC Package 1608 (0603-EIA) 1608 (0603-EIA) Manufacturer Taiyo Yuden Taiyo Yuden Part Number LMK107BJ475KA LMK107BJ106MA CL2025 Torex XCL206B183AR-G Description Ceramic 10V B, X5R Ceramic 10V B, X5R Synchronous Step-Down Micro DC/DC Package 1608 (0603-EIA) 1608 (0603-EIA) Manufacturer Taiyo Yuden Taiyo Yuden Part Number LMK107BJ475KA LMK107BJ106MA CL2025 Torex XCL206B253AR-G Description Ceramic 10V B, X5R Ceramic 10V B, X5R Synchronous Step-Down Micro DC/DC Package 1608 (0603-EIA) 1608 (0603-EIA) Manufacturer Taiyo Yuden Taiyo Yuden Part Number LMK107BJ475KA LMK107BJ106MA CL2025 Torex XCL206B2L3AR-G Description Ceramic 10V B, X5R Ceramic 10V B, X5R Synchronous Step-Down Micro DC/DC Package 1608 (0603-EIA) 1608 (0603-EIA) Manufacturer Taiyo Yuden Taiyo Yuden Part Number LMK107BJ475KA LMK107BJ106MA CL2025 Torex XCL206B303AR-G Description Ceramic 10V B, X5R Ceramic 10V B, X5R Synchronous Step-Down Micro DC/DC Package 1608 (0603-EIA) 1608 (0603-EIA) Manufacturer Taiyo Yuden Taiyo Yuden Part Number LMK107BJ475KA LMK107BJ106MA CL2025 Torex XCL206B333AR-G XCL206B153-EVB Qty 1 1 Ref CIN CL Value 4.7F 10F 1 IC 1.5V XCL206B183-EVB Qty 1 1 Ref CIN CL Value 4.7F 10F 1 IC 1.8V XCL206B253-EVB Qty 1 1 Ref CIN CL Value 4.7F 10F 1 IC 2.5V XCL206B2L3-EVB Qty 1 1 Ref CIN CL Value 4.7F 10F 1 IC 2.85V XCL206B303-EVB Qty 1 1 Ref CIN CL Value 4.7F 10F 1 IC 3.0V XCL206B333-EVB Qty 1 1 Ref CIN CL Value 4.7F 10F 1 IC 3.3V 6 XCL206 Evaluation Board Inductor Built-in Step-Down DC/DC Converters 3.3. PCB layout The below pictures are showing the top (left) and bottom (right) views of the PCB. The following picture is showing a fully populated XCL evaluation board. 7 XCL206 Evaluation Board Inductor Built-in Step-Down DC/DC Converters Chapter 4: TYPICAL CHARACTERISTICS XCL206B123-EVB Below are the typical performances that you should observe when using your XCL evaluation board. (1)Output Voltage vs. Output Current Ta=25 VIN CE/M CE ODE VSS 1.4 VIN=3.3V VOUT CIN CE/MODE GND CE VOUT CL GND Output Voltage : VOUT (V) IC VIN 1.3 1.2 1.1 1.0 0.1 (2)Efficiency vs. Output Current Ta=25 1000 (3)Ripple Voltage vs. Output Current Ta=25 100 100 VIN=3.3V VIN=3.3V Ripple Voltage : Vr (mV) 80 Efficiency : EFFI (%) 1 10 100 Output Current : IOUT (mA) 60 40 20 0 80 60 40 20 0 0.1 1 10 100 Output Current : IOUT (mA) 1000 0.1 1 10 100 Output Current : IOUT (mA) 1000 8 XCL206 Evaluation Board Inductor Built-in Step-Down DC/DC Converters Chapter 4: TYPICAL CHARACTERISTICS XCL206B153-EVB Below are the typical performances that you should observe when using your XCL evaluation board. (1)Output Voltage vs. Output Current Ta=25 VIN CE/M CE ODE VSS 1.7 VIN=3.3V VOUT CIN CE/MODE GND CE VOUT CL GND Output Voltage : VOUT (V) IC VIN 1.6 1.5 1.4 1.3 0.1 (2)Efficiency vs. Output Current Ta=25 1000 (3)Ripple Voltage vs. Output Current Ta=25 100 100 VIN=3.3V VIN=3.3V Ripple Voltage : Vr (mV) 80 Efficiency : EFFI (%) 1 10 100 Output Current : IOUT (mA) 60 40 20 0 80 60 40 20 0 0.1 1 10 100 Output Current : IOUT (mA) 1000 0.1 1 10 100 Output Current : IOUT (mA) 1000 9 XCL206 Evaluation Board Inductor Built-in Step-Down DC/DC Converters Chapter 4: TYPICAL CHARACTERISTICS XCL206B183-EVB Below are the typical performances that you should observe when using your XCL evaluation board. (1)Output Voltage vs. Output Current Ta=25 VIN VOUT CIN CE/M CE ODE CE/MODE GND CE VSS 2.0 VOUT CL GND VIN=3.3V Output Voltage : VOUT (V) IC VIN 1.9 1.8 1.7 1.6 0.1 (2)Efficiency vs. Output Current Ta=25 1000 (3)Ripple Voltage vs. Output Current Ta=25 100 100 VIN=3.3V VIN=3.3V Ripple Voltage : Vr (mV) 80 Efficiency : EFFI (%) 1 10 100 Output Current : IOUT (mA) 60 40 20 0 80 60 40 20 0 0.1 1 10 100 Output Current : IOUT (mA) 1000 0.1 1 10 100 Output Current : IOUT (mA) 1000 10 XCL206 Evaluation Board Inductor Built-in Step-Down DC/DC Converters Chapter 4: TYPICAL CHARACTERISTICS XCL206B253-EVB Below are the typical performances that you should observe when using your XCL evaluation board. (1)Output Voltage vs. Output Current Ta=25 VIN VOUT CIN CE/M CE ODE CE/MODE GND CE VOUT VSS CL GND 2.7 VIN=3.3 Output Voltage : VOUT (V) IC VIN 2.6 2.5 2.4 2.3 0.1 (2)Efficiency vs. Output Current Ta=25 1000 (3)Ripple Voltage vs. Output Current Ta=25 100 100 VIN=3.3V VIN=3.3V Ripple Voltage : Vr (mV) 80 Efficiency : EFFI (%) 1 10 100 Output Current : IOUT (mA) 60 40 20 0 80 60 40 20 0 0.1 1 10 100 Output Current : IOUT (mA) 1000 0.1 1 10 100 Output Current : IOUT (mA) 1000 11 XCL206 Evaluation Board Inductor Built-in Step-Down DC/DC Converters Chapter 4: TYPICAL CHARACTERISTICS XCL206B2L3-EVB Below are the typical performances that you should observe when using your XCL evaluation board. (1)Output Voltage vs. Output Current Ta=25 IC VIN VOUT CIN CL CE/M CE ODE CE/MODE GND CE 3.05 VOUT VSS GND VIN=3.6V Output Voltage : VOUT (V) VIN 2.95 2.85 2.75 2.65 0.1 (2)Efficiency vs. Output Current Ta=25 1 10 100 Output Current : IOUT (mA) 1000 (3)Ripple Voltage vs. Output Current Ta=25 100 100 80 80 Ripple Voltage : Vr (mV) Efficiency : EFFI (%) VIN=3.6V VIN=3.6V 60 40 20 0 60 40 20 0 0.1 1 10 100 Output Current : IOUT (mA) 1000 0.1 1 10 100 Output Current : IOUT (mA) 1000 12 XCL206 Evaluation Board Inductor Built-in Step-Down DC/DC Converters Chapter 4: TYPICAL CHARACTERISTICS XCL206B303-EVB Below are the typical performances that you should observe when using your XCL evaluation board. (1)Output Voltage vs. Output Current Ta=25 VIN CE/M CE ODE VSS 3.2 VIN=5.0V VOUT CIN CE/MODE GND CE VOUT CL GND Output Voltage : VOUT (V) IC VIN 3.1 3.0 2.9 2.8 0.1 (2)Efficiency vs. Output Current Ta=25 1000 (3)Ripple Voltage vs. Output Current Ta=25 100 100 VIN=5.0V VIN=5.0V Ripple Voltage : Vr (mV) 80 Efficiency : EFFI (%) 1 10 100 Output Current : IOUT (mA) 60 40 20 0 80 60 40 20 0 0.1 1 10 100 Output Current : IOUT (mA) 1000 0.1 1 10 100 Output Current : IOUT (mA) 1000 13 XCL206 Evaluation Board Inductor Built-in Step-Down DC/DC Converters Chapter 4: TYPICAL CHARACTERISTICS XCL206B333-EVB Below are the typical performances that you should observe when using your XCL evaluation board. (1)Output Voltage vs. Output Current Ta=25 3.5 IC VIN VOUT VOUT CIN CL CE/M CE ODE CE/MODE GND CE VSS GND VIN= 5.0V Output Voltage : VOUT (V) VIN 3.4 3.3 3.2 3.1 0.1 (2)Efficiency vs. Output Current Ta=25 1000 (3)Ripple Voltage vs. Output Current Ta=25 100 100 VIN=5.0V VIN=5.0V Ripple Voltage : Vr (mV) 80 Efficiency : EFFI (%) 1 10 100 Output Current : IOUT (mA) 60 40 20 0 80 60 40 20 0 0.1 1 10 100 Output Current : IOUT (mA) 1000 0.1 1 10 100 Output Current : IOUT (mA) 1000 14