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Analog Devices UG-157, User Manual

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UG-157 

Evaluation Board User Guide

 

Rev. 0 | Page 8 of 12 

EVALUATION BOARD SCHEMATICS AND ARTWORK 

0913

7-

009

BUCK1

BUCK2

LDO1

LDO2

SW1

SW2

VOUT1

VOUT2

VOUT1

VOUT2

PGND1

PGND2

VOUT3

VOUT4

L1

CBMF1606

L2

CBMF1606

VIN1

D2

C2

D1

D3

C3

D4

A1

A4

VIN2

VIN3

VIN4

AGND

MODE

LEDI

LEDO

ADP5032

U1

C1

C4

A2

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

 

Figure 9. Evaluation Board Schematic of ADP5032 

 

0

91

37-01

0

 

Figure 10. Top Layer, Recommended Layout 

Summary of Contents for UG-157

Page 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...

Page 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 ...

Page 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 ...

Page 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 ...

Page 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...

Page 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...

Page 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 ...

Page 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...

Page 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 ...

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

Page 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 ...

Page 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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