Enpirion(R) Power Evaluation Board User Guide EN5322Q PowrSoC DESCRIPTION FEATURES Thank you for choosing Altera Enpirion power products! * Input Voltage Range: 2.4 V - 5.5 V * 7 Output Voltage Options via VID Pins * Adjustable Output Voltage via External The EN5322 evaluation board is configured to provide a 1.2V output at up to 2A from a 2.4 V to 5.5 V input. The output can be set to 7 different voltages through the three VID output voltage select pins. It can also be adjusted from 0.6V to (VIN - 0.2 x ILOAD) through the external resistor divider option. The 4 MHz operation allows for the use of tiny MLCC capacitors. It also enables a very wide control loop bandwidth providing excellent transient performance and reduced output impedance. The internal compensation is designed for unconditional stability for all operating conditions. The Power OK signal is available. Resistor Divider * 2A Load Current Guaranteed * Fully Assembled and Tested Applications * * * * * * * Area Constrained Applications Data Networking Applications Wireless Data Cards Embedded/Industrial PC Set Top Box/Home Gateway LDO Replacement LP uProcessors, DSP, IO, Memory. EVALUATION BOARD BILL OF MATERIALS Ref Des Qty C1 C2 C3, C4 C11 U1 R41 1 1 2 1 1 1 Ceramic Capacitor, 10 uF, 10 V, X7R, 0805 Ceramic Capacitor, 470 pF, 50 V, X7R, 0805 Ceramic Capacitor, 22 uF, 6.3 V, X5R, 0805 Ceramic Capacitor, 1 uF, 6.3 V, X7R, 0603 2 A PWM Converter Resistor, 2 kOHM, 1%, 1/8 W, 0805 Description Murata: GRM21BR71A106KE51L Panasonic: ECJ-2VC1H471J Panasonic: ECJ2FB0J226M Panasonic: ECJ1VB0J105K Altera Enpirion: EN5322QI-T Panasonic: ERJ-6ENF2001V Manufacturer P/N C82 C102 D12 FB12 J12 TP5-TP92 C5, C6, C9, C12 R1, R2 TP1-TP2 1 1 1 1 1 5 Electrolytic Capacitor, 150 uF, 10 V Ceramic Capacitor, 10 uF, 10 V, X7R, 0805 TVS Unidirect, 600 W, 6.5 V Multilayer Ferrite Bead, 4000MA, 0805 Connector, Custom, Vertical Header Connector, Test Point Not Used Not Used Not Used Panasonic: EEVFK1A151P Murata: GRM21BR71A106KE51L Littlefuse: SMBJ6.5A Wurth: 742792012 Samtec: ASP12192002 Keystone: 5016 Notes: 1. R4 is not required if POK is not used. 2. These components are only for demonstration purposes, and are not needed for circuit design. 1 www.altera.com/enpirion Enpirion(R) Power Evaluation Board User Guide EN5322Q PowrSoC VS1 VS2 13 14 15 17 18 19 J1 Vin VS0 ENABLE 5 6 7 Input Protection 9 10 11 POK 1 2 3 EVALUATION BOARD CIRCUIT ASP12192002 C8 150u + D1 SMBJ6V5A PGND FB1 Vin TP1 C10 10u 1 2 PGND N/U VIN TP8 Vin R4 2k 1 Vout 17 POK 19 18 ENABLE PVIN PVIN 21 NC(SW) C4 0805 22u C5 0805 N/U C6 0805 N/U VS1 11 VS2 10 PGND PGND 22u 15 14 13 PGND 0805 1 C3 0805 1 R2 N/U 0805 TP7 VFB VSENSE 9 5 TP10 7 PVOUT 1 PVOUT PVOUT PGND 4 AGND EN5322Q U1 16 VS0 PGND 3 VOUT AVIN 8 2 PGND NC(SW) 23 NC(SW) C11 1u TP9 12 1 PVOUT 1 6 TP6 POK 2 1 1 NC(SW) TP5 NC(SW) 24 PGND 22 C2 470p 0805 0603 C1 10u 0805 20 1 TP2 C9 N/U 0805 C12 0805 R1 N/U Figure 1. Customer Eval Board Schematic 2 www.altera.com/enpirion TP3 Enpirion(R) Power Evaluation Board User Guide EN5322Q PowerSoC PRINTED CIRCUIT BOARD LAYOUT Figure 2: Component Placement Figure 3: Top Layer Layout Figure 4: Bottom Layer Layout Figure 4: Drills 3 www.altera.com/enpirion Enpirion(R) Power Evaluation Board User Guide EN5322Q PowerSoC QUICK START GUIDE 1. Preset Power Supply to 2.4 V VIN 5.5 V. 2. Turn Power Supply off. 3. Place jumper ENABLE at the left position to enable the EN5322. Placing jumper ENA at the right position will disable the EN5322. 4. Place jumper POK at the left position to connect pull up resistor R4 to VIN. Left the jumper open if the POK function is not used. 5. Place jumpers VS0, VS1, and VS2 according to the following table to set the desired output voltage. Table 2: VID Code Setting VS2 VS1 VS0 Output Voltage R R R R L L L L R R L L R R L L R L R L R L R L 3.3V 2.5V 1.8V 1.5V 1.25V 1.2V 0.8V External Divider The output voltage can also be set with an external resistor divider. Use a 340 k, 1 % resistor for R1. Then the value of the bottom resistor R2 is given as: R2 = 204 k VOUT - 0.6 where VOUT is the output voltage. For example, if the desired output voltage is 1 V, R2 should be a 511 k, 1% resistor. 6. Connect input power supply terminals to +VIN (TP8) and GND (TP5). 7. Connect load terminals to +VOUT (TP7) and GND (TP6). 8. Turn on the Power Supply after making connections. 9. The EN5322 will be enabled. The POK output can be observed at TP9. To observe noise-sensitive waveforms on input / output ripple and NC(SW), use the measurement technique as shown in Figure 5. Wrap bus wire around the GND portion of the bare probe and bring it close to the probe tip. Then solder the bus wire to the nearest GND on the board. 4 www.altera.com/enpirion Figure 5: Balanced Impedance Scope Probe for Noise Measurements Enpirion(R) Power Evaluation Board User Guide EN5322Q PowerSoC Contact Information Altera Corporation 101 Innovation Drive San Jose, CA 95134 Phone: 408-544-7000 www.altera.com (c) 2013 Altera Corporation--Confidential. All rights reserved. ALTERA, ARRIA, CYCLONE, ENPIRION, HARDCOPY, MAX, MEGACORE, NIOS, QUARTUS and STRATIX words and logos are trademarks of Altera Corporation and registered in the U.S. Patent and Trademark Office and in other countries. All other words and logos identified as trademarks or service marks are the property of their respective holders as described at www.altera.com/common/legal.html. Altera warrants performance of its semiconductor products to current specifications in accordance with Altera's standard warranty, but reserves the right to make changes to any products and services at any time without notice. Altera assumes no responsibility or liability arising out of the application or use of any information, product, or service described herein except as expressly agreed to in writing by Altera. 5 www.altera.com/enpirion Enpirion(R) Power Evaluation Board User Guide EN5322Q PowerSoC Altera customers are advised to obtain the latest version of device specifications before relying on any published information and before placing orders for products or services. 6 www.altera.com/enpirion