ISL80510EVAL1Z

USER’S MANUAL ISL80510EVAL1Z UG044 Rev 0.00 September 3, 2015 Evaluation Board Description The ISL80510EVAL1Z provides a simple platform to evaluate performances of the ISL80510 and ISL80505. It comes with jumpers to provide an easy way to set popular output voltages. The ISL80510 is a high performance, low voltage, high current, low dropout linear regulator specified at 1A. Rated for input • Small, compact design voltages from 2.2V to 6V, the LDO can provide output voltages from 0.8V to 5.5V. • V range of 2.2V to 6V (ISL80510), 1.8V to 6V (ISL80505) Key Features IN Specifications • VOUT adjustable from 0.8V to 5.5V This board has been configured and optimized for the following operating conditions: • VIN = 2.2 to 6V (ISL80510), 1.8V to 6V (ISL80505) • VOUT = 1V, 1.2V, 1.8V, 2.5V, 3.3V, or 5V (Jumper selectable) • IMAX = 1A (ISL80510), 500mA (ISL80505) • Convenient power connection References ISL80510 datasheet ISL80505 datasheet Ordering Information PART NUMBER DESCRIPTION ISL80510EVAL1Z ISL80510 evaluation board ISL80510/ISL80505 VIN 8 1 7 2 VIN CIN 10µF SS CSS 10nF VOUT VOUT VIN VOUT EPAD R1 CPB 10nF COUT 10µF FB 6 3 5 4 ENABLE 2.61kΩ GND R2 GND FIGURE 1. ISL80510EVAL1Z BLOCK DIAGRAM NOTE: The ISL80505 is another high performance, low dropout linear regulator specified at 500mA in the same family as ISL80510. The ISL80505 is rated for input voltage from 1.8V to 6V and can provide output voltages from 0.8V to 5.5V. The ISL80505 is pin-to-pin compatible with ISL80510 and can simply replace ISL80510 on ISL80510EVAL1Z for evaluation. (For ISL80505 samples, please contact Intersil.) UG044 Rev 0.00 September 3, 2015 Page 1 of 9 ISL80510EVAL1Z Functional Description PCB Layout Guidelines The ISL80510EVAL1Z evaluation board provides a simple platform to demonstrate the features of the ISL80510 and ISL80505. The ISL80510EVAL1Z has a functionally optimized ISL80510/ISL80505 circuit layout that allows efficient operation up to the maximum output current. A good PCB layout is important to achieve expected performance. Consideration should be taken when placing the components and routing the trace to minimize the ground impedance, and keep the parasitic inductance low. The input and output capacitors should have a good ground connection and be placed as close to the IC as possible. The ‘FB’ trace must be away from noisy planes and traces. The ISL80510EVAL1Z evaluation board is shown in Figures 2 and 3. The “ISL80510EVAL1Z Circuit Schematic” on page 4 shows the schematic, bill of materials and PCB layers for reference. Figure 7 through 16 show performance data taken using this hardware. Operating Range The large 2x3 via pattern under the ISL80510/ISL80505 is connected to a large ground copper plane on the bottom layer for effective thermal dissipation. Quick Start Guide The board VIN range is 2.2V to 6V (ISL80510) or 1.8V to 6V (ISL80505). The board VOUT setting is set to 1.8V out of the box. The output voltage can be set be an external resistor divider network. The values of resistors R1 and R2 can be calculated by using Equation 1. V OUT R 1 = R 2   ---------------- – 1  0.5  1. Select the desired output voltage by shorting one of the jumpers from J1 through J6. 2. Connect the input supply to VIN and GND. 3. Connect the load to VOUT and GND. 4. Enable the IC using jumper JP1 and observe the output. (EQ. 1) The output voltage can be easily changed to different voltage setting by jumpers from J1 through J6. Table 1 lists the output voltage options included in the ISL80510EVAL along with the corresponding jumper. TABLE 1. VOUT (V) R1 (kΩ) R2 (kΩ) JUMPER 1.0 2.61 2.61 J1 1.2 2.61 1.87 J2 1.8 2.61 1.00 J3 2.5 2.61 0.649 J4 3.3 2.61 0.464 J5 5.0 2.61 0.287 J6 UG044 Rev 0.00 September 3, 2015 Page 2 of 9 ISL80510EVAL1Z ISL80510EVAL1Z Evaluation Board FIGURE 2. TOP SIDE FIGURE 3. BOTTOM SIDE UG044 Rev 0.00 September 3, 2015 Page 3 of 9 73 9,Q 73 9RXW 8 66 )% (1 *1'   9287     9,1  & Q) 5 . ,6/   -3 & Q) & X)   9287 9RXW  & X) 9,1     (3  9LQ  &21   &21 ISL80510EVAL1Z UG044 Rev 0.00 September 3, 2015 ISL80510EVAL1Z Circuit Schematic     5    5  &21 FIGURE 4. ISL80510EVAL1Z SCHEMATIC -   5    -    - 5 .  5 .   5 . -     -  - *1'    73   &21 Page 4 of 9 ISL80510EVAL1Z Bill of Materials REFERENCE ITEM QTY DESIGNATOR VALUE TOL (%) RATING TYPE PCB FOOTPRINT MANUFACTURER MANUFACTURER PART NUMBER 1 2 C1, C3 10nF 5 25V NPO SM0603 Various 2 2 C4, C2 10µF 10 25V X5R SM0805 Various 3 6 J1, J2, J3, J4, Header 1x2 J5, J6 Header MOLEX 22-03-2021 4 1 JP1 Header 1x3 Header MOLEX 22-03-2031 5 2 R1, R2 2.61k 1 100mW THK FILM SM0603 Various 6 1 R3 1.87k 1 100mW THK FILM SM0603 Various 7 1 R4 1k 1 100mW THK FILM SM0603 Various 8 1 R5 649 1 100mW THK FILM SM0603 Various 9 1 R6 464 1 100mW THK FILM SM0603 Various 10 1 R7 287 1 100mW THK FILM SM0603 Various 11 0 TP1, TP2, TP3 Do Not Populated 12 1 U1 ISL80510 13 4 CON1, CON2, CON3, CON4 UG044 Rev 0.00 September 3, 2015 Test point 8 Ld 3x3 DFN Terminal Turret INTERSIL ISL80510IRAJZ Keystone 1514-2 Page 5 of 9 ISL80510EVAL1Z Board Layout - 2 Layers FIGURE 5. TOP LAYER FIGURE 6. PCB – BOTTOM LAYER (VIEWED FROM TOP) UG044 Rev 0.00 September 3, 2015 Page 6 of 9 ISL80510EVAL1Z Typical Performance Curves Unless otherwise noted: VIN = 2.2V, VOUT = 1.8V, TJ = +25°C, IL = 0A. 1.854 1.854 1.818 1.800 1.782 +125°C -40°C IOUT = 0A 1.836 +85°C +25°C OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 1.836 1.764 1.818 1.800 IOUT = 1A 1.782 1.764 1.746 0 0.2 0.4 0.6 0.8 1.0 1.746 -40 -25 -10 5 OUTPUT CURRENT (A) FIGURE 7. LOAD REGULATION 35 50 65 80 95 110 125 FIGURE 8. OUTPUT VOLTAGE vs TEMPERATURE 2.0 1.854 IOUT = 10mA 1.8 +25°C 1.6 +85°C OUTPUT VOLTAGE (V) 1.836 OUTPUT VOLTAGE (V) 20 TEMPERATURE (°C) 1.818 1.800 +125°C -40°C 1.782 +125°C 1.4 1.2 1.0 +85°C 0.8 0.6 +25°C 0.4 1.764 0.2 -40°C 0 1.746 2.2 2.7 3.3 3.8 4.4 4.9 INPUT VOLTAGE (V) 5.4 6.0 FIGURE 9. LINE REGULATION 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 INPUT VOLTAGE (V) 4.5 5.0 5.5 6.0 FIGURE 10. OUTPUT VOLTAGE vs INPUT VOLTAGE 2.2 RLOAD = 3.6Ω VIN = 2.2V OUTPUT VOLTAGE (V) 2.0 EN (2V/DIV) 1.8 1.6 SS (500mV/DIV) VIN = 6V 1.4 VOUT (500mV/DIV) 1.2 1.0 -40 -25 -10 5 20 35 50 65 80 95 TEMPERATURE (°C) FIGURE 11. CURRENT LIMIT vs TEMPERATURE UG044 Rev 0.00 September 3, 2015 110 125 ILOAD (500mA/DIV) 2ms/DIV FIGURE 12. ENABLE START-UP (CSS = 10nF) Page 7 of 9 ISL80510EVAL1Z Typical Performance Curves Unless otherwise noted: VIN = 2.2V, VOUT = 1.8V, TJ = +25°C, IL = 0A. COUT = 10µF, CPB = 10nF COUT = 10µF, CPB = 10nF, ILOAD = 10mA VOUT (AC-COUPLED, 20µV/DIV) VOUT (AC-COUPLED, 10mV/DIV) 2.2V 6V AT 1V/µs 10mA 1A AT 2A/ms ILOAD (1A/DIV) VIN (2V/DIV) 200µs/DIV 200µs/DIV FIGURE 13. LOAD TRANSIENT RESPONSE FIGURE 14. LINE TRANSIENT RESPONSE 80 80 70 IOUT = 0.6A 70 IOUT = 0.2A 50 40 30 IOUT = 0.8A IOUT = 1A 20 IOUT = 0.2A IOUT = 0.6A IOUT = 0.4A 60 PSRR (dB) PSRR (dB) 60 IOUT = 0.4A 50 40 30 IOUT = 1A IOUT = 0.8A 20 10 10 CPB = 10nF 0 100 1k 10k 100k FREQUENCY (Hz) FIGURE 15. PSRR vs FREQUENCY UG044 Rev 0.00 September 3, 2015 1M 0 100 VIN = 2.3V CPB = 10nF 10k 10k 100k 1M FREQUENCY (Hz) FIGURE 16. PSRR vs FREQUENCY Page 8 of 9 Notice 1. Descriptions of circuits, software and other related information in this document are provided only to illustrate the operation of semiconductor products and application examples. You are fully responsible for the incorporation or any other use of the circuits, software, and information in the design of your product or system. Renesas Electronics disclaims any and all liability for any losses and damages incurred by you or third parties arising from the use of these circuits, software, or information. 2. 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