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| TM EV2364DF/1541DJ-00A 4 Output DSL Power Supply EVALUATION BOARD - INITIAL RELEASE The Future of Analog IC Technology TM GENERAL DESCRIPTION The EV2364/1541-00A is an evaluation board for DSL Power applications. It has four outputs and can supply 1.5A continuous output current over a wide input supply range with excellent load and line regulation. Current mode operation provides fast transient response and eases loop stabilization. Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown. FEATURES * * * * * * * * * * * * * 1.5A Current for 3.3V and 1.8V Outputs Ceramic Input and Output Capacitors High Efficiency Fixed Operating Frequency Wide 5V to 23V Operating Input Range Adjustable Output Programmable Under Voltage Lockout Programmable Soft-Start Distributed Power Systems I/O and Core Supplies DSL Modems Set Top Boxes Cable Modems ELECTRICAL SPECIFICATIONS Parameter Input Voltage Output Voltage A Output Current A Output Voltage B Output Current B Output Voltage C Output Current C Output Voltage D Output Current D Symbol VIN VOUTA IOUTA VOUTB IOUTB VOUTC IOUTC VOUTD IOUTD Value 5 - 23 3.3 1.5 1.8 1.5 12.8 100 5 100 Units V V A V A V mA V mA APPLICATIONS "MPS" and "The Future of Analog IC Technology" are Trademarks of Monolithic Power Systems, Inc. EV2364DF/1541DJ-00A EVALUATION BOARD Dimensions (2.6"X x 2.6"Y x 0.4"Z) Board Number EV2364DF/1541DJ-00A MPS IC Number MP2364DF and MP1541DJ 1 EV2364DF/1541DJ-00A Rev. 1.0 www.MonolithicPower.com 6/9/2005 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. (c) 2005 MPS. All Rights Reserved. TM EV2364DF/1541DJ-00A - 4 OUTPUT DSL POWER SUPPLY EVALUATION BOARD - INITIAL RELEASE PERFORMANCE CURVES Efficiency vs Load Current 100 90 VOUT=3.3V 100 90 Efficiency vs Load Current EFFICIENCY (%) EFFICIENCY (%) 80 70 60 50 VOUT=1.8V 80 70 60 50 VOUT=12.8V 0 0.25 0.5 0.75 1.0 1.25 1.5 LOAD CURRENT (A) 0 20 40 60 80 LOAD CURRENT (mA) 100 EV2364_1541_EC01-02 EVALUATION BOARD SCHEMATIC LM7805CT VOUTD 5V @ 100mA GNDD OUT GND IN U3 VIN 12V GND ENA U1 SSA NC1 BSA INA SWA PGA SGA FBB COMPB ENB ENA COMP GBA SGB PGB SWB INB NC2 BSB SSB C18 82pF C8 2.2nF VOUTA 3.3V @ 1.5A GNDA C2 10nF C4 NS D2 B230A-13 C7 10nF D3 B230A-13 VOUTB 1.8V @ 1.5A C10 NS GNDB C5 3.3nF C17 10pF MP2364 ENB D5 MBR0520 VOUTC 12.8V @ 100mA GNDC IN SW FB ENC EN MP1541 GND C13 100pF U2 EV2364_1542_S01 EV2364DF/1541DJ-00A Rev. 1.0 www.MonolithicPower.com 6/9/2005 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. (c) 2005 MPS. All Rights Reserved. 2 TM EV2364DF/1541DJ-00A - 4 OUTPUT DSL POWER SUPPLY EVALUATION BOARD - INITIAL RELEASE EV2364DF/1541DJ-00A BILL OF MATERIALS Qty 2 2 2 2 1 1 2 1 1 1 1 1 1 1 2 1 2 1 1 1 4 1 2 Ref C1, C6 C2, C7 C3, C9 C4, C10 C5 3.3nF Value Description 0.47F 10nF 22F Ceramic Capacitor, 16V, X7R Ceramic Capacitor, 50V, X7R Ceramic Capacitor, 6.3V, X5R Not used Package 0805 0603 1210 Manufacturer Part No. TDK: C2012X7R1C474K TDK: C1608X7R1H103K TDK: C3225X5R0J226M Panasonic: ECJ-1VB1H332K TDK: C1608X7R1H222K TDK: C3225X7R1E106M TDK: C1608C0G1H101J Panasonic: ECJ-4YB1A106K Panasonic: ECJ-4YB1C475K Murata: GRM32ER60J476ME20L Murata: GRM1885C1H100JA01D Murata: GRM1885C1H820JA01D Murata: GRM31C5C1E104JA01L Diodes Inc: B230A-13 ON Semiconductor: MBR0520LT1 Sumida: CDRH6D28-5R0 Sumida: CDRH6D28-100NC Panasonic: ERJ-3EKF2552V Panasonic: ERJ-3GEYJ752V Panasonic: ERJ-3EKF1002V Panasonic: ERJ-3EKF9531V Panasonic: ERJ-3EKF1003V Distributor Part No. Digikey: 445-1357-1-ND Digikey: 445-1311-1-ND Digikey: 445-1404-1-ND Digikey: PCC1778CT-ND Digikey: 445-1309-1-ND Digikey: 445-1434-1-ND Digikey: 445-1281-1-ND Digikey: PCC2170CT-ND Digikey: PCC2168TR-ND Digikey: 490-1887-1-ND Digikey: 490-1403-1-ND Digikey: 490-1425-2-ND Digikey: 490-1767-2-ND Digikey: B230ADICT-ND Digikey: MBR0520LT1OSCT-ND Ceramic Capacitor, 50V, X7R Ceramic Capacitor, C8 2.2nF 50V, X7R Ceramic Capacitor, C11, C12 10F 25V, X7R Ceramic Capacitor, C13 100pF 50V, C0G Ceramic Capacitor, C14 10F 10V, X5R Ceramic Capacitor, C15 4.7F 16V, X5R Ceramic Capacitor, C16 47F 6.3V, X5R Ceramic Capacitor, C17 10pF 50V, X5R Ceramic Capacitor, C18 82pF 50V, X5R Ceramic Capacitor, C19 1F 25V, X5R Schottky Diode, D2, D3 30V, 2A, SMA Schottky Diode, D5 20V, 0.5A 2.4A, SMD, L1, L2 5H Unshielded L3 R1 10H 25.5k 1.7A 0603 0603 1210 0603 1210 1210 1210 0603 0603 1210 SOD-123 Metal Film Resistor, 1% Metal Film Resistor, R2 7.5k 5% R3, R5, Metal Film Resistor, 10k R6, R11 1% Metal Film Resistor, R4 9.53k 1% R7, R9 100k Resistor, 1% 0603 0603 0603 0603 0603 Digikey: P25.5KHCT-ND Digikey: P7.5KGCT-ND Digikey: P10.0KHCT-ND Digikey: P9.53KHCT-ND Digikey: P100KHCT-ND EV2364DF/1541DJ-00A Rev. 1.0 www.MonolithicPower.com 6/9/2005 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. (c) 2005 MPS. All Rights Reserved. 3 TM EV2364DF/1541DJ-00A - 4 OUTPUT DSL POWER SUPPLY EVALUATION BOARD - INITIAL RELEASE EV2364DF/1541DJ-00A BILL OF MATERIALS (continued) Qty 1 1 2 1 1 1 Ref R8 R10 R12, R13 U1 U2 U3 Value Description 110k Resistor, 1% 11.8k Resistor, 1% 0 Resistor, 5% DC/DC Controller 1.3MHz Boost Converter 5 Volt Regulator Package Manufacturer Part No. Distributor Part No. Digikey: P110KHDKR-ND Digikey: P11.8KHCT-ND Digikey: P0.0GTR-ND Panasonic: 0603 ERJ-3EKF1103V Panasonic: 0603 ERJ-3EKF1182V Panasonic: 0603 ERJ-3GEY0R00V MPS: TSSOP20 MP2364DF MPS: SOT23-5 MP1541 National Semi: LM7805CT PRINTED CIRCUIT BOARD LAYOUT Figure 1--Top Silk Layer Figure 2--Top Layer EV2364DF/1541DJ-00A Rev. 1.0 www.MonolithicPower.com 6/9/2005 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. (c) 2005 MPS. All Rights Reserved. 4 TM EV2364DF/1541DJ-00A - 4 OUTPUT DSL POWER SUPPLY EVALUATION BOARD - INITIAL RELEASE Figure 3--Bottom Layer QUICK START GUIDE The output voltages of this board are set to 3.3V (VOUTA), 1.8V (VOUTB), 12.8V (VOUTC) and 5V (VOUTD). The board layout accommodates most commonly used inductors and output capacitors. 1. Attach the positive and negative ends of the first load to the VOUTA and GND pins, respectively. If using other outputs, attach the positive and negative ends of their loads to the respective VOUT and GND pins for the desired outputs. 2. Preset the power supply output to 5V to 23V and turn it off. 3. Connect the positive terminal of the power supply output to the VIN pin and the negative terminal of the to the GND pin. 4. Turn on the power supply. The EV2364DF/1541DJ will automatically startup. 5. To use the Enable function, apply a digital input to the ENA/ENB pins. Drive EN higher than 2.5V to turn on the regulator and less than 0.7V to turn it off. 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. EV2364DF/1541DJ-00A Rev. 1.0 www.MonolithicPower.com 6/9/2005 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. (c) 2005 MPS. All Rights Reserved. 5 |
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