EV28163-Q-00A High Efficiency Single Inductor Buck-Boost DC-DC Converter Evaluation Board The Future of Analog IC Technology DESCRIPTION FEATURES The EV28163-Q-00A Evaluation Board is designed to demonstrate the capabilities of MPS’ MP28163. • • • • • • • • The MP28163 is a highly efficient, low quiescent current Buck-Boost converter, which operates from input voltage above, below and equal to the output voltage. The device provides power solution for products powered by a one-cell Lithium-Ion or multi-cell alkaline battery applications where the output voltage is within battery voltage rang. The MP28163 operates with input voltage from 2V to 5.5V to provide adjustable output voltage (1.5V to 5V), and is available in QFN10-3x3mm package. ELECTRICAL SPECIFICATION Parameter Symbol Value Units Supply Voltage Output Voltage VIN VOUT 2 – 5.5 3.3 V Output Current IOUT 0 – OCP V A • • • High efficiency up to 95%. Load disconnect during shutdown Input voltage range: 2V to 5.5V adjustable output voltage from 1.5V to 5V 1MHz switching frequency Pulse skipping mode at light load Typical 80uA quiescent current Internal loop compensation for fast response Internal soft start OTP, hiccup SCP Available in small QFN10-3x3 package APPLICATIONS • • • • Battery-powered products Portable instruments Tablet PCs POS systems All MPS parts are lead-free and adhere to the RoHS directive. For MPS green status, please visit MPS website under Products, Quality Assurance page. “MPS” and “The Future of Analog IC Technology”, are Registered Trademarks of Monolithic Power Systems, Inc. EV28163-Q-00A EVALUATION BOARD (L × W × H) 5.08cm × 5.08cm × 1.3cm Board Number MPS IC Number EV28163-Q-00A MP28163GQ EV28163-Q-00A Rev.1.0 www.MonolithicPower.com 1/26/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. 1 EV28163-Q-00A―HIGH EFFICIENCY SINGLE INDUCTOR BUCK-BOOST DC-DC CONVERTER EVB EVALUATION BOARD SCHEMATIC 5 C1 NS GND 3 1 2 FB 7 EN JP1 AGND 6 R1 820k R3 750k C5 68pF JP2 2 10 MODE/ SYNC 3 GND 8 Vcc GND 2 1 VOUT MP28163 R2 143k 22uF 6.3V C3 GND 22uF 6.3V C4 GND GND 9 1 VOUT PGND 3 C2 10uF/6.3V VIN U1 SW2 VIN SW1 4 L1 3.3uH GND EV28163-Q-00A BILL OF MATERIALS Qty RefDes Value 1 C1 NS 1 C2 2 C3, C4 1 C5 2 JP1, JP2 1 L1 1 1 1 R1 R2 R3 1 U1 Description 6.3V X7R ceramic 10uF capacitor 6.3V X5R ceramic 22uF capacitor 50V, X7R ceramic 68pF Capacitor 3 pins header 9mOhm, 8A 3.3uH inductor 820k Film resistor, 1% 143k Film resistor, 1% 750k Film resistor, 5% 2~5.5V, 2.6A buckMP28163 boost converter Manufacturer Manufacturer P/N Package 0805 muRata GRM21BR60J106KE19D 0805 muRata GRM21BR60J226ME39L 0805 muRata GRM188R71H680KL 0603 DI Wurth YAGEO YAGEO YAGEO MPS 744314330 SMD RC0603FR-07820KL RC0603FR-07143KL RC0603JR-07750KL 0603 0603 0603 MP28163GQ EV28163-Q-00A Rev.1.0 www.MonolithicPower.com 1/26/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. QFN10-3*3 2 EV28163-Q-00A―HIGH EFFICIENCY SINGLE INDUCTOR BUCK-BOOST DC-DC CONVERTER EVB EVB TEST RESULTS Performance waveforms are tested on the evaluation board. VIN = 3.3V, VOUT = 3.3V, L = 3.3µH, COUT=2x22uF, TA = 25°C, unless otherwise noted. EV28163-Q-00A Rev.1.0 www.MonolithicPower.com 1/26/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. 3 EV28163-Q-00A―HIGH EFFICIENCY SINGLE INDUCTOR BUCK-BOOST DC-DC CONVERTER EVB EVB TEST RESULTS (continued) Performance waveforms are tested on the evaluation board. VIN = 3.3V, VOUT = 3.3V, L = 3.3µH, COUT=2x22uF, TA = 25°C, unless otherwise noted. EV28163-Q-00A Rev.1.0 www.MonolithicPower.com 1/26/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. 4 EV28163-Q-00A―HIGH EFFICIENCY SINGLE INDUCTOR BUCK-BOOST DC-DC CONVERTER EVB EVB TEST RESULTS (continued) Performance waveforms are tested on the evaluation board. VIN = 3.3V, VOUT = 3.3V, L = 3.3µH, COUT=2x22uF, TA = 25°C, unless otherwise noted. EV28163-Q-00A Rev.1.0 www.MonolithicPower.com 1/26/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. 5 EV28163-Q-00A―HIGH EFFICIENCY SINGLE INDUCTOR BUCK-BOOST DC-DC CONVERTER EVB EVB TEST RESULTS (continued) Performance waveforms are tested on the evaluation board. VIN = 3.3V, VOUT = 3.3V, L = 3.3µH, COUT=2x22uF, TA = 25°C, unless otherwise noted. VOUT/AC 100mV/div. VOUT/AC 100mV/div. VOUT/AC 100mV/div. ILOAD 500mA/div. ILOAD 200mA/div. ILOAD 500mA/div. SCP Entry SCP Recovery SCP Entry VIN=2.4V, IOUT=0.5A, MODE=HIGH VIN=2.4V, IOUT=0.5A, MODE=HIGH VIN=4.2V, IOUT=0.5A, MODE=HIGH VOUT 2V/div. VOUT 2V/div. VOUT 2V/div. VSW1 2V/div. VSW1 2V/div. VSW1 5V/div. VSW2 2V/div. VSW2 2V/div. VSW2 2V/div. IL 1A/div. IL 1A/div. IL 1A/div. SCP Recovery VIN=4.2V, IOUT=0.5A, MODE=HIGH VOUT 2V/div. VSW1 5V/div. VSW2 2V/div. IL 1A/div. EV28163-Q-00A Rev.1.0 www.MonolithicPower.com 1/26/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. 6 EV28163-Q-00A―HIGH EFFICIENCY SINGLE INDUCTOR BUCK-BOOST DC-DC CONVERTER EVB PRINTED CIRCUIT BOARD LAYOUT Figure 1: Top Silkscreen Layer Figure 2: Top Layer Figure 3: Bottom Silkscreen Layer EV28163-Q-00A Rev.1.0 www.MonolithicPower.com 1/26/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. 7 EV28163-Q-00A―HIGH EFFICIENCY SINGLE INDUCTOR BUCK-BOOST DC-DC CONVERTER EVB QUICK START GUIDE 1. Preset the load to some value, e.g. 0.5A, notice that the MP28163 may enter SCP hiccup if starting up with a heavier load due to the secondary current limit which is for inrush protection.. 2. Connect the positive and negative terminals of the load to the VOUT and GND pins, respectively. 3. Preset the power supply output voltage (2~5.5V), and then turn off the power supply. 4. Connect the positive and negative terminals of the power supply output to the VIN and GND pins, respectively. 5. Turn on the power supply. The MP28163 demo board will automatically start up. 6. To use the Enable function, remove the jumper JP1, apply a digital input to the EN pin. Drive EN higher than 1.2V to turn on the regulator or less than 0.4V to turn it off. 7. To use MODE pin for PSM operation, please turn off Vin then connect the jumper JP2 to GND. 8. If other output voltage is preferred, The output voltage VOUT can be programmed by changing R1 and R2 according to below equation: R2 = R1× , VFB VOUT − VFB where VFB . Is typically 0.496V, and R1, R2’s units are in kΩ, VOUT ‘s unit is in V. The value of R2 is recommended to be from 100 kΩ through 180 kΩ. The recommended output voltage can be from 1.5V through 5V. NOTICE: The information in this document is subject to change without notice. Please contact MPS for current specifications. Users should warrant and guarantee that third party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not assume any legal responsibility for any said applications. EV28163-Q-00A Rev.1.0 www.MonolithicPower.com 1/26/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. 8