Evaluation Board User Guide
UG-439
One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com
Evaluating the ADP5034 TSSOP Micro Power Management Unit (Micro PMU)
FEATURES
GENERAL DESCRIPTION
Full featured evaluation board for the ADP5034 TSSOP
Standalone capability
Simple device measurements, including line and load
regulation, demonstrable with
A single voltage supply
A voltmeter
An ammeter
Load resistors
Easy access to external components
Cascading options to supply the low dropout (LDO)
regulator from either buck regulator
Dedicated enable option for each channel
Mode option to change buck regulators from power save
mode (PSM) to pulse-width modulation (PWM) operation
This user guide describes the hardware for the evaluation of the
ADP5034 and includes detailed schematics and PCB layouts.
The ADP5034 is available in either a 24-lead LFCSP package
or a 28-lead TSSOP package. Note that this user guide refers to
the ADP5034 TSSOP evaluation board, ADP5034RE-EVALZ.
Refer to UG-271 for information on the ADP5034 LFCSP.
The ADP5034 TSSOP evaluation board has two step-down
regulators with two LDO regulators that enable evaluation of
the ADP5034. The evaluation board is available in an adjustable
voltage option.
Full details on the ADP5034 are provided in the ADP5034 data
sheet available from Analog Devices, Inc., which must be
consulted in conjunction with this evaluation board user guide.
10895-001
DIGITAL PICTURE OF THE ADP5034 TSSOP EVALUATION BOARD
Figure 1.
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Rev. A | Page 1 of 13
UG-439
Evaluation Board User Guide
TABLE OF CONTENTS
Features .............................................................................................. 1
Measuring Ground Current .............................................................9
General Description ......................................................................... 1
Digital Picture of the ADP5034 TSSOP Evaluation Board ......... 1
Measuring Ground Current Consumption of LDO Regulators
..........................................................................................................9
Revision History ............................................................................... 2
Evaluation Board Schematic and Artwork.................................. 10
Using the Evaluation Board............................................................. 3
Ordering Information .................................................................... 13
Powering Up the Evaluation Board ............................................ 3
Bill of Materials ........................................................................... 13
Measuring Evaluation Board Performance .................................. 4
Related Links ................................................................................... 13
Measuring Output Voltage .............................................................. 8
REVISION HISTORY
4/2017—Rev. 0 to Rev. A
Changes to General Description Section and Figure 1 ............... 1
Changes to Enable Section, Table 1, and Turning on the
Evaluation Board Section ................................................................ 3
Changes to Figure 4 .......................................................................... 4
Added Figure 7 and Figure 9; Renumbered Sequentially ........... 5
Changes to Measuring Load Regulation of Buck Regulator
Section, Figure 8, Measuring Line Regulation of Buck Regulator
Section, and Figure 10...................................................................... 5
Added Figure 11 ................................................................................6
Changes to Measuring Efficiency of Buck Regulator Section and
Figure 12 Caption ..............................................................................6
Moved Measuring Ground Current Consumption of LDO
Regulators Section .............................................................................9
Changes to Figure 16...................................................................... 11
Changes to Table 3.......................................................................... 12
8/2012—Revision 0: Initial Version
Rev. A | Page 2 of 13
Evaluation Board User Guide
UG-439
USING THE EVALUATION BOARD
POWERING UP THE EVALUATION BOARD
The ADP5034 TSSOP evaluation board, ADP5034RE-EVALZ,
is supplied fully assembled and tested. Before applying power to
the evaluation board, follow the procedures in this section.
Enable
Each channel has its own enable pin (EN1, EN2, EN3, and
EN4), which must be pulled high via the corresponding
jumpers to enable that channel (see Table 1).
Input and Output Voltmeters
Measure the input and output voltages with voltmeters. Make
sure to connect the voltmeters to the appropriate evaluation
board terminals and not to the load or power sources themselves.
If the voltmeters are not connected directly to the evaluation
board, the measured voltages are incorrect due to the voltage
drop across the leads and/or connections between the evaluation
board, the power source, and/or the load.
Table 1. Channels of the Enable Jumper
Channel
1
2
3
4
(+) load terminal, and the negative (−) load terminal to the
evaluation board at PGND.
Enable Jumper
JEN1
JEN2
JEN3
JEN4
Connect the input voltage measuring voltmeter positive terminal
(+) to the evaluation board at VIN1, and input voltage measuring
voltmeter negative (−) terminal to the evaluation board at PGND.
Jumper JMODE (MODE)
Jumper JMODE, as shown in Figure 1, connects the MODE pin
of the device to either ground or VIN1. To force Buck 1 and
Buck 2 into forced PWM operation, shunt the center contact of
Jumper JMODE to the top pin header to pull the MODE pin high
to VIN1. To allow Buck 1 and Buck 2 to operate in automatic
PWM/PSM operation, shunt the center contact of JMODE to
the bottom pin header to pull the MODE pin low to PGND on
the ADP5034RE-EVALZ.
Input Power Source
If the input power source includes a current meter, use that meter
to monitor the input current. VIN1 directly connects to AVIN
and VIN2. Attach a header on JVIN3 to connect the supply of
LDO1 to VIN1, and attach a header on JVIN4 to connect the
supply of LDO2 to VIN1. Connect the positive terminal of the
power source to VIN1 on the evaluation board and the negative
terminal of the power source to PGND.
If the power source does not include a current meter, connect a
current meter in series with the input source voltage. Connect the
positive lead (+) of the power source to the ammeter positive (+)
connection, the negative lead (−) of the power source to PGND
on the evaluation board, and the negative lead (−) of the ammeter
to VIN1 on the board. Be aware that the current meters add
resistance to the input source, and this voltage reduces with
high output currents.
Output Load
Connect an electronic load or resistor to set the load current. If the
load includes an ammeter, or if the current is not measured,
connect the load directly to the evaluation board, with the positive
(+) load connected to one of the channels. For example, connect
the Buck 1 output, VOUT1, and the negative (−) load connection
to PGND.
Connect the output voltage measuring voltmeter positive (+)
terminal to the evaluation board at VOUT1 to measure the
output voltage of Buck 1, and connect the output voltage
measuring voltmeter negative (−) terminal to the evaluation
board at GND.
Turning On the Evaluation Board
When the power source and load are connected to the evaluation
board, the board can be powered for operation. Ensure the
following:
•
•
•
•
The power source voltage for the buck regulators (VIN1,
VIN2) is from 2.3 V to 5.5 V.
The power source voltage for the LDO regulators (VIN3,
VIN4) is from the LDO output voltage + 0.5 V (or 1.7 V,
whichever is greater) to 5.5 V.
The voltage supplied on VIN3 and VIN4 must be equal to
or less than the voltage supplied on VIN1 and VIN2.
The desired channel is enabled and monitors the output
voltage.
If the load is not enabled, enable the load; check that it is drawing
the proper current and that the output voltage maintains voltage
regulation.
Setting the Output Voltage of the Buck Regulators
The buck output voltage is set through external resistor dividers,
shown in Figure 2 for Buck 1. The output voltage can optionally
be factory programmed to default values as indicated in the
data sheet. In this event, R1 and R2 are not needed, and FB1 can
be left unconnected. In all cases, VOUT1 must be connected to
the output capacitor. FB1 is 0.5 V.
If an ammeter is used, connect it in series with the load. Connect
the positive (+) ammeter terminal to the evaluation board for
Buck 1, VOUT1, the negative (−) ammeter terminal to the positive
Rev. A | Page 3 of 13
UG-439
Evaluation Board User Guide
VOUT1
VIN1
SW1
L1
1µH
VOUT1
BUCK
FB1
VOUT1 = VFB1
R2
C5
10µF
10895-002
AGND
R1
R1
+1
R2
Figure 2. BUCK1 External Output Voltage Setting
Each LDO output voltage is set through external resistor
dividers, as shown in Figure 3, for LDO1. The output voltage can
optionally be factory programmed to default values as indicated in
the ADP5034 data sheet. In this event, FB3 must be connected to
the top of the capacitor on VOUT3 by placing a 0 Ω resistor on
RTOP, and leave RBOT unpopulated. Refer to Table 2 for the
corresponding 0 Ω resistor placements on RTOP per channel.
VIN3
VOUT3
VOUT3
LDO1
FB3
RTOP
C7
1µF
Figure 4. Measuring Output Voltage Ripple
Measuring the Switching Waveform of Buck Regulators
To observe the switching waveform with an oscilloscope, place
the oscilloscope probe tip at the end of the inductor with the probe
ground at GND. Set the oscilloscope to dc, 2 V/division, and
200 ns/division time base. When the MODE pin is set to high, the
buck regulators operate in forced PWM mode. When the MODE
pin is set to low and the load is above a predefined threshold, the
buck regulators operate in PWM mode. When the load current
falls below a predefined threshold, the regulator operates in PSM,
improving the light load efficiency. Typical PWM and PSM
switching waveforms are shown in Figure 5 and Figure 6.
10895-003
RBOT
10895-004
Setting the Output Voltage of the LDO Regulators
VOUT1 = VFB3 R1 + 1
R2
T
VOUT2
Figure 3. LDO1 External Output Voltage Setting
1
External Resistor Divider Setting for Buck and LDO
Regulators
ISW
The ADP5034 TSSOP evaluation boards are supplied with fixed
resistor dividers with values chosen for a target output voltage.
Varying the resistor values of the resistor divider networks
varies the output voltage accordingly.
2
SW2
Table 2. External Resistor Dividers
Buck 2
RT2
RB2
LDO1
RT3
RB3
LDO2
RT4
RB4
MEASURING EVALUATION BOARD PERFORMANCE
4
CH2 500mA Ω
CH4 2.00V
CH1 50.0mV
M 4.00µs
A CH2
240mA
T 28.40%
10895-005
Buck 1
RT1
RB1
Figure 5. Typical Waveforms, VOUT2 = 3.3 V, IOUT2 = 30 mA, PSM Mode
T
Measuring Output Voltage Ripple of Buck Regulators
To observe the output voltage ripple of Buck 1, place an oscilloscope probe across the output capacitor (COUT1) with the probe
ground lead at the negative (−) capacitor terminal and the probe
tip at the positive (+) capacitor terminal.
Set the oscilloscope to ac, 10 mV/division, and 2 μs/division
time base, with the bandwidth set to 20 MHz to prevent noise
from interfering with the measurements. It is also recommended
to shorten the ground loop of the oscilloscope probe to minimize
coupling. One way of measuring the output voltage ripple is to
solder a wire to the negative (−) capacitor terminal and wrap it
around the barrel of the probe, while the tip directly connects to
the positive (+) capacitor terminal, as shown on Figure 4.
Rev. A | Page 4 of 13
VOUT2
1
ISW
2
SW2
4
CH1 50mV
BW
CH2 500mA Ω
M 400ns A CH2
BW
CH4 2.00V
T 28.40%
220mA
10895-006
Resistor Divider
RTOP
RBOT
Figure 6. Typical Waveforms, VOUT2 = 3.3 V, IOUT2 = 30 mA, PWM Mode
Evaluation Board User Guide
UG-439
Measuring Load Regulation of the Buck Regulator
Measuring Line Regulation of the Buck Regulator
Test the load regulation by increasing the load at the output and
examining the change in output voltage. The input voltage must be
held constant during this measurement. To minimize voltage drop,
use short low resistance wires, especially for loads approaching
maximum current. The buck regulator load regulation plots for
VOUT2 = 3.3 V and VOUT2 = 1.8 V are shown in Figure 7 and
Figure 8, respectively.
Test the line regulation by increasing the input voltage and
examining the change in the output voltage. The buck regulator
line regulation plots for VOUT2 = 3.3 V and VOUT2 = 1.8 V are
shown in Figure 9 and Figure 10, respectively.
3.277
3.275
VOUT2 (V)
3.273
3.275
3.272
3.271
3.270
3.269
3.274
3.268
3.267
3.273
3.266
3.265
3.8
4.3
3.272
5.3
VIN2 (V)
Figure 9. Buck Regulator Line Regulation, VOUT2 = 3.3 V
0
200
400
600
800
1000
1200
ILOAD (mA)
10895-208
3.271
4.8
10895-210
VOUT2 (V)
NO LOAD
ILOAD = 200mA
ILOAD = 800mA
ILOAD = 1200mA
3.276
3.274
VIN = 3.8V
VIN = 4.3V
VIN = 5.5V
3.276
3.277
1.7990
1.7985
Figure 7. Buck Load Regulation, VOUT2 = 3.3 V
1.7985
= 0mA
= 200mA
= 800mA
= 1200mA
1.7980
VIN = 2.3V
VIN = 3.6V
VIN = 5.5V
1.7975
VOUT2 (V)
1.7980
ILOAD
ILOAD
ILOAD
ILOAD
1.7975
1.7970
1.7960
1.7965
1.7950
2.0
1.7955
2.5
3.0
3.5
4.0
4.5
5.0
VIN2 (V)
Figure 10. Buck Regulator Line Regulation, VOUT2 = 1.8 V
1.7950
0
100 200 300 400 500 600 700 800 900 1000 1100 1200
ILOAD (mA)
Figure 8. Buck Load Regulation, VOUT2 = 1.8 V
Rev. A | Page 5 of 13
5.5
10895-109
1.7955
1.7960
10895-108
VOUT2 (V)
1.7965
1.7970
UG-439
Evaluation Board User Guide
Measuring Efficiency of the Buck Regulator
Measure the efficiency, η, by comparing the input power with
the output power.
η=
VOUT × I OUT
VIN × I IN
Measure the input and output voltages as close as possible to the
input and output capacitors to reduce the effect of IR drops.
To ensure that the device is not in dropout mode during this
measurement, VIN must be varied between VOUT nominal + 0.5 V
(or 2.3 V, whichever is greater) and VIN maximum. For example,
a fixed 3.3 V output needs VIN to be varied between 3.8 V and
5.5 V. This measurement can be repeated under different load
conditions. Figure 13 shows the typical line regulation performance
of the LDO regulator with a fixed 3.3 V output.
3.317
The buck regulator efficiency plots for VOUT2 = 3.3 V and VOUT2 =
1.8 V are shown in Figure 11 and Figure 12, respectively.
3.316
100
3.315
VOUT (V)
90
80
3.314
3.313
60
ILOAD
ILOAD
ILOAD
ILOAD
ILOAD
3.312
40
3.311
3.6
30
4.1
20
5.6
Figure 13. VOUT vs. VIN, LDO Line Regulation for an Output of 3.3 V
10
1
100
1000
10000
10895-212
PSM MODE
PWM MODE
ILOAD (mA)
Figure 11. Buck Regulator Efficiency, VIN2 = 4.2 V, VOUT2 = 3.3 V
100
PSM
PWM
90
80
70
EFFICIENCY (%)
5.1
VIN (V)
10
0
4.6
= 1mA
= 10mA
= 100mA
= 200mA
= 300mA
10895-010
50
Measuring Load Regulation of LDO Regulators
For load regulation measurements, the regulator output is
monitored while the load is varied. For optimal load regulation,
the output must change as little as possible with varying loads.
The input voltage must be held constant during this measurement.
The load current can be varied from 0 mA to 300 mA. Figure 14
shows the typical load regulation performance of the LDO
regulator with a 3.3 V output for different input voltages.
60
3.3160
50
VIN = 3.6V
VIN = 4.2V
VIN = 5.5V
3.3155
40
3.3150
30
3.3145
VOUT (V)
20
0
1
10
100
1k
10k
ILOAD (mA)
10895-110
10
Figure 12. Buck Regulator Efficiency, VIN2 = 3.6 V, VOUT2 = 1.8 V
3.3140
3.3135
3.3130
3.3125
3.3120
Measuring Inductor Current
3.3115
Measure the inductor current by removing one end of the inductor
from its pad and connecting a current loop in series. Connect a
current probe to this wire.
3.3110
Measuring Line Regulation of LDO Regulators
For line regulation measurements, the output of the regulator
is monitored while its input is varied. For optimal line regulation, the output must change as little as possible with varying
input levels.
Rev. A | Page 6 of 13
0
50
100
150
200
250
ILOAD (mA)
Figure 14. VOUT vs. ILOAD, LDO Load Regulation
300
10895-011
EFFICIENCY (%)
70
Evaluation Board User Guide
UG-439
Measuring Dropout Voltage of LDO Regulators
Cascading an LDO Regulator from the Buck Regulator
Dropout voltage is defined as the input-to-output voltage differential when the input voltage is set to the nominal output voltage.
One way to measure dropout voltage is to obtain the output voltage
(VOUT nominal) with VIN initially set to VOUT nominal + 0.5 V; set
the output load to 100 µA. Then, force the input voltage equal to
VOUT nominal, and measure the output voltage accordingly (VOUT
dropout). Dropout voltage is then calculated as VOUT nominal −
VOUT dropout. This calculation applies only for output voltages
greater than 1.7 V.
For certain applications such as analog circuit supplies, the
LDO regulators are preferred over the buck regulators because
of improved noise performance. When none of the buck
regulator outputs are being used, the input supply of the LDO
regulators can be taken from these outputs. An example
evaluation board connection is shown in Figure 15, wherein
VOUT1 is tied to VIN3, which is the supply of LDO1, by shunting
Jumper JV3V1. Subsequently, VIN4, which is the supply of
LDO2 can also be connected to VOUT2 through Jumper JV4V2.
In this configuration, the output voltage of the buck regulator has
enough headroom with the desired output voltage of the LDO
regulator to guarantee that the LDO regulator operates within
specifications.
Dropout voltage increases with larger loads. For more accurate
measurements, use a second voltmeter 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.
VOLTAGE
SOURCE
VOLTMETER
1.99711
–
+
–
10895-012
+
Figure 15. Cascading an LDO Regulator from the Buck Regulator
Rev. A | Page 7 of 13
UG-439
Evaluation Board User Guide
MEASURING OUTPUT VOLTAGE
Figure 16 shows how the evaluation board can be connected to
a voltage source and a voltmeter for basic output voltage accuracy
measurements. It shows a voltage source connected to VIN1 and a
voltmeter connected to VOUT1S, which is the output voltage sense
terminal of Buck 1. JEN1 is connected to VIN1 via a shunt that
enables Buck 1; JEN2, JEN3, and JEN4 are connected to ground,
disabling the other channels.
When measuring the voltages on VOUT2, VOUT3, and VOUT4,
ensure that the respective channels are enabled, and the volt meters
are connected to the respective outputs. 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 supplies enough current for the
expected load levels.
VOLTAGE
SOURCE
+
–
VOLTMETER
1.99711
–
10895-013
+
Figure 16. Output Voltage Measurement
Rev. A | Page 8 of 13
Evaluation Board User Guide
UG-439
MEASURING GROUND CURRENT
MEASURING GROUND CURRENT CONSUMPTION
OF LDO REGULATORS
Figure 17 shows the evaluation board connected to a voltage
source and an ammeter for ground current measurements.
A resistor can be used as the load for the regulator.
Ground current measurements can determine how much current
the internal circuits of the regulator consume while the circuits
perform the regulation function. To be efficient, the regulator
needs to consume as little current as possible. Typically, the
regulator uses the maximum current when supplying its largest
load level (300 mA). When the device is disabled, the ground
current drops to less than 1 µA.
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
can supply enough current for the expected load levels.
VOLTAGE
SOURCE
AMMETER
0.00112
–
+
–
10895-014
+
Figure 17. Ground Current Measurement
Rev. A | Page 9 of 13
TSW-101-14-T-D
VOUT2
1
2
1
2
3
1
2
3
VIN
GND
VIN
GND
VIN
JEN2
VIN1
1
2
3
VIN4
GND
Rev. A | Page 10 of 13
FBK2
GND
VOUT2
GND
VIN
GND
FB4
VOUT4
1
VOUT4
1
MOLEX22-28-4033
MOLEX22-28-4033
MOLEX22-28-4033
JEN4
JEN3
TSW-101-14-T-D
1
2
JVIN4
108-0740-001
JV4V2
GND
1
VOUT2
ALIAS
EN4
Figure 18. Evaluation Board Schematic of the ADP5034 TSSOP
AGND
VOUT2_SENSE
1
VOUT2S
PGND
1 108-0740-001
1
GND3S
ALIAS
1
GND2S
EN2
ALIAS
10UF
COUT2
PGND2
1UH
L2
100K
100K
1
2
3
4
5
6
7
8
9
10
11
12
13
14
PAD
VIN3
U1
28
27
26
FB3
25
NC
24
AGND
23
AVIN
22
VIN1
21
SW1
20
PGND1
19
MODE
18
NC
17
EN1
16
FBK1
15
VOUT1
VOUT3
AVIN
AGND
VOUT1_SENSE
VOUT3_SENSE
RT3
100K
100K
10UF
COUT1
PGND1
CIN1
4.7UF
100K
RT1
ALIAS
0.1UF
RB1
PAD ADP5034AREZ
VOUT2
FBK2
EN2
NC
NC
PGND2
SW2
VIN2
EN4
FB4
NC
VOUT4
VIN4
VOUT2_SENSE
100K
SW2
VIN2
100K
AGND_SENSE
EN3
1UF
CIN3
CIN4
1UF
1UF
RB2
ALIAS
CIN2
EN3
1
COUT3
ALIAS
VOUT3S
1UF
COUT4
ALIAS
RT2
CIN2A
4.7UF
AGND_SENSE
1
CIN1A
VOUT4S
VOUT4_SENSE
0.1UF
RT4
EN1
1
VOUT1S
1
VOUT1
MODE
ALIAS
ALIAS
ALIAS
AGND_SENSE
VOUT1_SENSE
1UH
L1
CIN
0.1UF
RB3
100K
ALIAS
AGND_SENSE
FBK1
GND
VOUT1
GND
VIN
VIN
FB3
VIN
VIN
GND
VIN
GND
GND
1
VIN3
1
VOUT3
GND
VOUT3
GND
GND
VOUT1
JVIN3
1
2
JV3V1
1
2
3
1
2
3
MOLEX22-28-4033
JEN1
MOLEX22-28-4033
JMODE
GND1 TSW-101-14-T-D TSW-101-14-T-D
1
1
2
10895-015
RB4
UG-439
Evaluation Board User Guide
EVALUATION BOARD SCHEMATIC AND ARTWORK
UG-439
10895-016
Evaluation Board User Guide
10895-017
Figure 19. Evaluation Board of the ADP5034 TSSOP
Figure 20. Top Layer, Recommended Layout for ADP5034 TSSOP
Rev. A | Page 11 of 13
Evaluation Board User Guide
10895-018
UG-439
Figure 21. Bottom Layer, Recommended Layout for ADP5034 TSSOP
Rev. A | Page 12 of 13
Evaluation Board User Guide
UG-439
ORDERING INFORMATION
BILL OF MATERIALS
Table 3.
Qty.
1
2
4
2
1
2
2
1
1
1
1
1
3
Reference Designator
U1
CIN1, CIN2
CIN3, CIN4, COUT3, COUT4
COUT_2, COUT_1
CIN
CIN1A, CIN2A
L1, L2
RT1
RT2
RT3
RT4
RB1
RB2, RB3, RB4
Description
Micro PMU
Capacitor, MLCC, 4.7 μF
Capacitor, MLCC, 1.0 μF
Capacitor, MLCC, 10.0 μF
Capacitor, MLCC, 0.1 μF
Capacitor, MLCC, 0.1 μF
Inductor, 1.0 μH
Resistor, 0805, 140 kΩ
Resistor, 0805, 280 kΩ
Resistor, 0805, 200 kΩ
Resistor, 0805, 130 kΩ
Resistor, 0805, 100 kΩ
Resistor, 0805, 50 kΩ
Manufacturer
Analog Devices
Murata
Murata
Murata
Taiyo Yuden
Taiyo Yuden
Murata
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Part Number
ADP5034
GRM188R60J475ME19D
GRM155R61A105KE15D
GRM188R60J106ME47D
GMK105BJ104MV-F
LMK063BJ10KPF
LQM2HPN1R0MJ0L
TNPW0805140KBEEA
TNPW0805280KBEEA
TNPW0805200KBEEA
TNPW0805130KBEEA
TNPW0805100KBEEA
PNM0805E5002BST5
RELATED LINKS
Resource
ADP5023
ADP5024
ADP5034
ADP5037
UG-271
Description
Dual 3 MHz, 800 mA Buck Regulator with One 300 mA LDO
Dual 3 MHz, 1200 mA Buck Regulators with One 300 mA LDO
Dual 3 MHz, 1200 mA Buck Regulator with Two 300 mA LDOs
Dual 3 MHz, 800 mA Buck Regulators with Two 300 mA LDOs
Evaluation Board User Guide for ADP5034 LFCSP
ESD Caution
ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection
circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality.
Legal Terms and Conditions
By using the evaluation board discussed herein (together with any tools, components documentation or support materials, the “Evaluation Board”), you are agreeing to be bound by the terms and conditions
set forth below (“Agreement”) unless you have purchased the Evaluation Board, in which case the Analog Devices Standard Terms and Conditions of Sale shall govern. Do not use the Evaluation Board until you
have read and agreed to the Agreement. Your use of the Evaluation Board shall signify your acceptance of the Agreement. This Agreement is made by and between you (“Customer”) and Analog Devices, Inc.
(“ADI”), with its principal place of business at One Technology Way, Norwood, MA 02062, USA. Subject to the terms and conditions of the Agreement, ADI hereby grants to Customer a free, limited, personal,
temporary, non-exclusive, non-sublicensable, non-transferable license to use the Evaluation Board FOR EVALUATION PURPOSES ONLY. Customer understands and agrees that the Evaluation Board is provided
for the sole and exclusive purpose referenced above, and agrees not to use the Evaluation Board for any other purpose. Furthermore, the license granted is expressly made subject to the following additional
limitations: Customer shall not (i) rent, lease, display, sell, transfer, assign, sublicense, or distribute the Evaluation Board; and (ii) permit any Third Party to access the Evaluation Board. As used herein, the term
“Third Party” includes any entity other than ADI, Customer, their employees, affiliates and in-house consultants. The Evaluation Board is NOT sold to Customer; all rights not expressly granted herein, including
ownership of the Evaluation Board, are reserved by ADI. CONFIDENTIALITY. This Agreement and the Evaluation Board shall all be considered the confidential and proprietary information of ADI. Customer may
not disclose or transfer any portion of the Evaluation Board to any other 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 Board, including but not limited to soldering or any other activity that affects the material content of the Evaluation Board.
Modifications to the Evaluation Board must comply with applicable law, including but not limited to the RoHS Directive. TERMINATION. ADI may terminate this Agreement at any time upon giving written notice
to Customer. Customer agrees to return to ADI the Evaluation Board at that time. LIMITATION OF LIABILITY. THE EVALUATION BOARD PROVIDED HEREUNDER IS PROVIDED “AS IS” AND ADI MAKES NO
WARRANTIES OR REPRESENTATIONS OF ANY KIND WITH RESPECT TO IT. ADI SPECIFICALLY DISCLAIMS ANY REPRESENTATIONS, ENDORSEMENTS, GUARANTEES, OR WARRANTIES, EXPRESS OR IMPLIED, RELATED
TO THE EVALUATION BOARD INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, TITLE, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF INTELLECTUAL
PROPERTY RIGHTS. IN NO EVENT WILL ADI AND ITS LICENSORS BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES RESULTING FROM CUSTOMER’S POSSESSION OR USE OF
THE EVALUATION BOARD, INCLUDING BUT NOT LIMITED TO LOST PROFITS, DELAY COSTS, LABOR COSTS OR LOSS OF GOODWILL. ADI’S TOTAL LIABILITY FROM ANY AND ALL CAUSES SHALL BE LIMITED TO THE
AMOUNT OF ONE HUNDRED US DOLLARS ($100.00). EXPORT. Customer agrees that it will not directly or indirectly export the Evaluation Board to another country, and that it will comply with all applicable
United States federal laws and regulations relating to exports. GOVERNING LAW. This Agreement shall be governed by and construed in accordance with the substantive laws of the Commonwealth of
Massachusetts (excluding conflict of law rules). Any legal action regarding this Agreement will be heard in the state or federal courts having jurisdiction in Suffolk County, Massachusetts, and Customer hereby
submits to the personal jurisdiction and venue of such courts. The United Nations Convention on Contracts for the International Sale of Goods shall not apply to this Agreement and is expressly disclaimed.
©2012–2017 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
UG10895-0-4/17(A)
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