Analog Devices UG-157 Скачать руководство пользователя страница 9 | Manualshive

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Evaluation Board User Guide

UG-157

Rev. 0 | Page 9 of 12

09

137

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Figure 11. Second Layer, Recommended Layout

091

37-01

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Figure 12. Third Layer, Recommended Layout

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Содержание UG-157

Страница 1: ...own regulator with a two LDO solution that enables evaluation of the ADP5032 The evaluation board is available in standard voltage options The ADP5032 uses a proprietary high speed current mode constant frequency PWM control scheme for excellent stability and transient response To ensure the longest battery life in portable applications the ADP5032 features a power save mode PSM that reduces the s...

Страница 2: ...valuation Board 1 Revision History 2 Using the Evaluation Board 3 Powering Up the Evaluation Board 3 Measuring Evaluation Board Performance 3 Measuring Output Voltage 6 Measuring Ground Current 7 Evaluation Board Schematics and Artwork 8 Ordering Information 11 Bill of Materials 11 REVISION HISTORY 7 10 Revision 0 Initial Version ...

Страница 3: ...ut and output voltages with voltmeters Make sure that the voltmeters are connected to the appropriate evaluation board terminals and not directly to the load or power source If the voltmeters are not connected directly to the evaluation board the measured voltages will be incorrect due to the voltage drop across the leads and or connections between the evaluation board the power source and or the ...

Страница 4: ...easuring Inductor Current Measure the inductor current by removing one end of the inductor from its pad and connecting a current loop in series A current probe can be connected onto this wire Line Regulation of LDOs For line regulation measurements the regulator s output is monitored while its input is varied For good line regulation the output must change as little as possible with varying input ...

Страница 5: ...ges above 2 3 V Dropout voltage increases with larger loads For more accurate measurements a second voltmeter can be used to monitor the input voltage across the input capacitor The input supply voltage may need to be adjusted to account for IR drops especially if large load currents are used 2 790 2 792 2 794 2 796 2 798 2 800 2 802 2 804 2 806 2 808 2 810 0 0 02 0 04 0 06 0 08 0 10 0 12 0 14 IOU...

Страница 6: ...curacy measurements A resistor can be used as the load for the regulator Ensure that the resistor has a power rating adequate to handle the power expected to be dissipated across it An electronic load can also be used as an alternative Ensure that the voltage source can supply enough current for the expected load levels 09137 007 VOLTAGE SOURCE VOLTMETER 1 99711 Figure 7 Output Voltage Measurement...

Страница 7: ...ts A resistor can be used as the load for the regulator Ensure that the resistor has a power rating that is adequate to handle the power expected to be dissipated across it An electronic load can be used as an alternative Ensure that the voltage source used can supply enough current for the expected load levels 09137 008 VOLTAGE SOURCE VOLTMETER 0 00112 Figure 8 Ground Current Measurement ...

Страница 8: ... A3 B1 B2 B3 B4 JP11 VOUT1 JP12 VOUT2 JP13 VIN 1 2 1 2 1 2 D4 INDICATOR LED C6 4 7µF CD402STD C7 1µF CD402STD C5 4 7µF CD402STD J2 VIN_1 VIN_2 VIN1 VIN2 VIN4 VIN3 J1 J8 PGND J6 VOUT2 J9 PGND J7 VOUT3 J10 PGND VOUT1 J5 C4 1µF CD402STD J11 GND1 J12 GND2 3 JP3 MODE 2 1 3 2 1 3 JP4 LEDIN 2 1 3 2 1 COUT_1 10µF CD603STD COUT_2 10µF CD603STD COUT_3 1µF CD402STD J14 VOUT4 J13 PGND COUT_4 1µF CD402STD Figu...

Страница 9: ...Evaluation Board User Guide UG 157 Rev 0 Page 9 of 12 09137 011 Figure 11 Second Layer Recommended Layout 09137 012 Figure 12 Third Layer Recommended Layout ...

Страница 10: ...UG 157 Evaluation Board User Guide Rev 0 Page 10 of 12 09137 013 Figure 13 Bottom Layer Recommended Layout ...

Страница 11: ...er 1 U1 ADP5032 micro PMU 4 regulators Analog Devices ADP5032 2 C5 C6 Capacitor MLCC 4 7 μF 6 3V 0402 X5R Panasonic ECG ECJ 0EB0J475M 4 C7 C4 COUT_3 COUT_4 Capacitor MLCC 1 0 μF 6 3V 0402 X5R Taiyo Yuden LMK105BJ105MV F 2 COUT_2 COUT_1 Capacitor MLCC 10 0 μF 6 3V 0603 X5R Taiyo Yuden JMK107BJ106MA T 2 L1 L2 Inductor 1 0 μH 0 29 A 90 mΩ Taiyo Yuden CBMF1608T1R0M ...

Страница 12: ...er party for any reason Upon discontinuation of use of the Evaluation Board or termination of this Agreement Customer agrees to promptly return the Evaluation Board to ADI ADDITIONAL RESTRICTIONS Customer may not disassemble decompile or reverse engineer chips on the Evaluation Board Customer shall inform ADI of any occurred damages or any modifications or alterations it makes to the Evaluation Bo...

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