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LTM8080EY

Analog Devices LTM8080EY User manual

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1
DEMO MANUAL DC3071A
Rev. 0
DESCRIPTION
LTM8080EY
40VIN, Dual 500mA or Single 1A Ultralow
Noise, Ultrahigh PSRR µModule Regulator
Demonstration circuit 3071A features the LTM
®
8080
µModule
®
regulator, a complete, low input noise, ultrahigh
PSRR solution with an intermediate power bus and dual
output 0.5A LDO regulators, in a thermally enhanced, com-
pact 9mm × 6.25mm × 3.32mm BGA package. DC3071A
has a wide operating input range of 4V to 40V. Each of
the two outputs is an adjustable 3.3V/0.5A. The operating
output range is a wide 0V to 8V. DC3071A also allows for
the LDOs to be paralleled up to 1A rail loadcurrent.
The LTM8080 includes voltage tracking functionality,
external frequency synchronization, and low input noise
compliance with CISPR22 Class B. The built-in voltage
All registered trademarks and trademarks are the property of their respective owners.
BOARD PHOTO
tracking function automatically sets VBUS to either 2.5V
nominal or 1V higher than V
OUT1
, whichever is greater,
to achieve the best noise performance and minimize
power dissipation. External frequency synchronization
is available through the SYNC pin. It also features the
power good feedback function for an adjustable power
goodthreshold.
The µModule regulator targets applications that require
a complete switcher and LDO regulators solution with
configurable output channels, power good protection fea-
tures, and ultralow noise performance.
Design files for this circuit board are available.
Part marking is either ink mark or laser mark
(a) Front View (b) Back View
2
DEMO MANUAL DC3071A
Rev. 0
QUICK START PROCEDURE
Demonstration circuit 3071A is easy to set up to evalu-
ate the performance of the LTM8080. See Figure1 for
the proper measurement equipment setup and follow the
procedure below.
1.
With the power off, place the jumpers as shown in the
following positions.
JUMPER POSITION FUNCTION
JP1 ON RUN
JP2 BURST SYNC
2.
Before connecting the input supply, load, and meters,
preset the input voltage supply to be between 4V to
40V. Then, preset the load currents to 0A.
3. With power off, connect the output loads between
VOUT1 and GND, VOUT2 and GND, input voltage
supply, respectively. (Initial load: no load). Refer
toFigure1.
4. Connect the DVMs to the input and outputs.
5. Turn on the input power supply and adjust the volt-
age to 12V.
NOTE: Make sure that the input voltage does not
exceed40V.
6. Check for the proper output voltages from VOUT1 to
GND and VOUT2 to GND. The output voltage meters
for each phase should display the programmed out-
put voltage within ±2%.
7. Once the proper output voltage is established, adjust
the load current from 0A to 500mA, VOUT should be
within 3.234V to 3.366V.
8. Vary the input voltage from 4V to 40V, VOUT should
be within 3.234V to 3.366V.
9. After completing all tests, adjust the load to 0A and
power of the input power supply.
OPTIONAL: An input EMI filter is included on the board.
To include this filter, connect the input supply positive
terminal to VEMI. Connect the input positive supply to
VIN to exclude the input EMI filter.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN Input Supply Range Continuous Operation, Free Air 4.0 40 V
VOUT1 Output Voltage 1 3.3 V
VOUT2 Output Voltage 2 3.3 V
IOUT1 Output Current 1 0.5 A
IOUT2 Output Current 2 0.5 A
POUT/PIN Efficiency (See Figure3) VIN = 12V, VOUT = 3.3V, IOUT = 0.5A 64.7 %
PERFORMANCE SUMMARY
Specifications are at TA = 25°C
3
DEMO MANUAL DC3071A
Rev. 0
Figure1. Test Setup Drawing for DC3071A
QUICK START PROCEDURE
Figure2. Proper Measurement Equipment Setup
+ –
VOUT GND
COUT
dc3071a F02
4
DEMO MANUAL DC3071A
Rev. 0
Figure3. Measured Efficiency (VIN = 12V, VOUT = 3.3V, fSW = 2.2MHz)
LOAD CURRENT (A)
0
0.10
0.20
0.30
0.40
0.50
35
40
45
50
55
60
65
EFFICIENCY (%)
dc3071a F03
AIRFLOW HEATSINK AMBIENT (°C)
Natural Convection None 25
TYPICAL TEST RESULTS
Figure4. Thermal at VIN = 12V, VOUT1 = 3.3V at 500mA Load
(a) Front (b) Back
5
DEMO MANUAL DC3071A
Rev. 0
Figure5. Measured Output Voltage vs Load Current (VIN = 12V, VOUT = 3.3V)
TYPICAL TEST RESULTS
(a) 0mA to 250mA Load (b) 250mA to 0mA Load
(c) 250mA to 500mA Load (d) 500mA to 250mA Load
dc3071a F05a
2μs/DIV
VOUT
5mV/DIV
dc3071a F05b
2μs/DIV
VOUT
5mV/DIV
IOUT
500mA/DIV
dc3071a F05c
2μs/DIV
VOUT
2mV/DIV
dc3071a F05d
2μs/DIV
VOUT
5mV/DIV
IOUT
500mA/DIV
6
DEMO MANUAL DC3071A
Rev. 0
Figure6. Measured Output Voltage Ripple (VIN = 12V, VOUT = 3.3V at 500mA Load)
dc3071a F06
1μs/DIV
VOUT
2mV/DIV
TYPICAL TEST RESULTS
7
DEMO MANUAL DC3071A
Rev. 0
ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER
Required Circuit Components
1 1 R1 RES., 1M, 1%, 1/10W, 0603, AEC-Q200 NIC, NRC06F1004TRF
2 3 R2, R7, R16 RES., 100k, 1%, 1/10W, 0603 YAGEO, RC0603FR-07100KL
3 2 R11, R14 RES., 49.9k, 1%, 1/10W, 0603 NIC, NRC06F4992TRF
4 1 R3 RES., 16.2k, 1%, 1/10W, 0603, AEC-Q200 PANASONIC, ERJ3EKF1622V
5 2 R12, R15 RES., 33.2k, 1%, 1/10W, 0603 PANASONIC, ERJ3EKF3322V
6 2 R10, R13 RES., 453k, 1%, 1/10W, 0603, AEC-Q200 VISHAY, CRCW0603453KFKEA
7 1 R36 RES., 0Ω, 1/2W, 1210, AEC-Q200 VISHAY, CRCW12100000Z0EA
8 1 C5 CAP., 0.1μF, X7R, 16V, 10%, 0603 MURATA, GRM188R71C104KA01D
9 1 C9 CAP., 0.01μF, X7R, 16V, 10%, 0603 AVX, 0603YC103KAT2A
10 1 C23 CAP., 4.7μF, X7R, 25V, 5%, 1206 KEMET, C1206C475J3RACTU
11 1 C20 CAP., 4.7μF, X7R, 25V, 10%, 1206 AVX, 12063C475KAT2A
12 3 C6, C7, C8 CAP., 4.7μF, X7S, 50V, 10%, 1206, AEC-Q200 MURATA, GCM31CC71H475KA03K
13 2 C19, C21 CAP., 10μF, X7R, 16V, 10%, 1206, AEC-Q200 MURATA, GCM31CR71C106KA64L
14 1 C2 CAP., 0.1μF, X7R, 50V, 10%, 0805 AVX, 08055C104KAT2A
15 1 C1 CAP., 1μF, X7R, 50V, 10%, 0805 AVX, 08055C105KAT2A
16 1 C13 CAP., 4.7μF, X5R, 16V, 10%, 0805 AVX, 0805YD475KAT2A
17 1 C12 CAP., 47μF, X5R, 16V, 20%, 1210 AVX, 1210YD476MAT2A
18 1 C3 CAP., 4.7μF, X5R, 50V, 10%, 1206 TAIYO YUDEN, UMK316BJ475KL-T
19 1 C4 CAP., 22μF, ALUM. ELECT., 63V, 20%,
6.3mm × 7.7mm, CE-BS
SUN ELECTRONIC INDUSTRIES CORP, 63CE22BS
20 1 RFB1 IND., 220Ω AT 100MHz, FERRITE BEAD, 3A, 40mΩ,
0805, NO SUBS. ALLOWED
TDK, MPZ2012S221AT000
21 1 D1 DIODE, ZENER, 3.6V, 250mW, SOD323 CENTRAL SEMI., CMDZ3L6 TR PBFREE
22 1 U1 IC, STEP-DOWN CONTROLLER, BGA-48 ANALOG DEVICES, LTM8080EY#PBF
Additional Demo Board Circuit Components
1 0 R8, R17, R18 RES., OPTION, 0603
2 0 C18, C22 CAP., OPTION, 1206
Hardware: For Demo Board Only
1 1 JP1 CONN., HDR., MALE, 1×3, 2mm, VERT, STR, THT SULLINS CONNECTOR SOLUTIONS, NRPN031PAEN-RC
2 1 JP2 CONN., HDR, MALE, 2×4, 2mm, VERT, STR, THT SAMTEC, TMM-104-02-L-D
3 2 J2, J7 CONN., RF, BNC, RCPT, JACK, 5-PIN, ST, THT, 50Ω AMPHENOL RF, 112404
4 2 XJP1, XJP2 CONN., SHUNT, FEMALE, 2-POS., 2mm WURTH ELEKTRONIK, 60800213421
5 14 E1-E6, E8-E15 TEST POINT, TURRET, 0.094" MTG. HOLE,
PCB 0.062" THK
MILL-MAX, 2501-2-00-80-00-00-07-0
6 1 PCB1 PCB, DC3071A ADI APPROVED SUPPLIER, 600-DC3071A
7 4 MP5-MP8 STANDOFF, NYLON, SNAP-ON, 0.25" (6.4mm) KEYSTONE, 8831
WURTH ELECTRONICS, 702931000
8 1 STNCL1 TOOL, STENCIL, DC3071A ANALOG DEVICES, 830-DC3071A
9 1 LB1 LABEL SPEC, DEMO BOARD SERIAL NUMBER BRADY, THT-96-717-10
PARTS LIST
8
DEMO MANUAL DC3071A
Rev. 0
SCHEMATIC DIAGRAM
NOTES: UNLESS OTHERWISE SPECIFIED
1. ALL RESISTORS AND CAPACITORS ARE 0603.
SUNCON
63CE22BS
SYNC
SPREAD
P.S.
BURST
ONOFF
4V - 40V
0805
For parallel operation:
STEP DOWN SILENT SWITCHER µMODULE REGULATOR
December 9th, 2019
VIN
VIN
VIN
VIN
DATE:
SHEET OF
TITLE: SCHEMATIC
APPROVALS
PCB DES.
APP ENG.
SIZE:
SCHEMATIC NO. AND REVISION:
CUSTOMER NOTICE
THIS CIRCUIT IS PROPRIETARY TO ANALOG DEVICES AND
SUPPLIED FOR USE WITH ANALOG DEVICES PARTS.
SKU NO.
IC NO.
ANALOG DEVICES HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED
SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S
RESPONSIBILITY TO VERIFY PROPER AND RELIABLE
OPERATION IN THE ACTUAL APPLICATION. COMPONENT
SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT
MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE
OR RELIABILITY. CONTACT ANALOG DEVICES
APPLICATIONS ENGINEERING FOR ASSISTANCE.
ANALOG
DEVICES
11
HZ
SG
LTM8080IY
DC3071A
710-DC3071A_REV01
N/A DATE:
SHEET OF
TITLE: SCHEMATIC
APPROVALS
PCB DES.
APP ENG.
SIZE:
SCHEMATIC NO. AND REVISION:
CUSTOMER NOTICE
THIS CIRCUIT IS PROPRIETARY TO ANALOG DEVICES AND
SUPPLIED FOR USE WITH ANALOG DEVICES PARTS.
SKU NO.
IC NO.
ANALOG DEVICES HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED
SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S
RESPONSIBILITY TO VERIFY PROPER AND RELIABLE
OPERATION IN THE ACTUAL APPLICATION. COMPONENT
SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT
MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE
OR RELIABILITY. CONTACT ANALOG DEVICES
APPLICATIONS ENGINEERING FOR ASSISTANCE.
ANALOG
DEVICES
11
HZ
SG
LTM8080IY
DC3071A
710-DC3071A_REV01
N/A DATE:
SHEET OF
TITLE: SCHEMATIC
APPROVALS
PCB DES.
APP ENG.
SIZE:
SCHEMATIC NO. AND REVISION:
CUSTOMER NOTICE
THIS CIRCUIT IS PROPRIETARY TO ANALOG DEVICES AND
SUPPLIED FOR USE WITH ANALOG DEVICES PARTS.
SKU NO.
IC NO.
ANALOG DEVICES HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED
SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S
RESPONSIBILITY TO VERIFY PROPER AND RELIABLE
OPERATION IN THE ACTUAL APPLICATION. COMPONENT
SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT
MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE
OR RELIABILITY. CONTACT ANALOG DEVICES
APPLICATIONS ENGINEERING FOR ASSISTANCE.
ANALOG
DEVICES
11
HZ
SG
LTM8080IY
DC3071A
710-DC3071A_REV01
N/A
D1
CMDZ3L6TR
J7
VOUT2
1
2
3
4
5
E1
VIN
R10
453k
C12
47uF
C21
10uF
R3
16.2k
+
C4
22uF
12
E9
SYNC
R8
OPT
C5
0.1uF
E5
TR/SS
E11
VOUT1
R12
33.2k
C19
10uF
E8
PG1
C1
1uF
50V
C9
0.01uF
C3
4.7uF
C23
4.7uF
R14
49.9k
R13
453k
JP2
9th??
12
34
56
78
C7
4.7uF
C18
OPT
C8
4.7uF
E14
GND
E3
VOUT0
VIN
A5
GND
B2
GND
C4
RT
C6
RUN
A3
GND
A1
VIN
A4
GND
B5
GND
B3
GND
C5
GND
B4
GND
A6
GND
D1
GND
C3
GND
D5
GND
D6
GND
E3
GND
E4
GND
E5
SYNC
B6
TR/SS
A2
GND
C2
GND
D2
GND
D3
GND
D4
GND
E1
GND
E2
GND
E6
GND
F1
GND
F5 GND
F4 GND
F3 GND
F2
GND
F6
VBUS B1
VBUS C1
VOUT1 G6
VOUT1 H6
SNS1 H5
SET1 H4
PGFB1 G4
VOUT2 G1
VOUT2 H1
SNS2 H2
PGFB2 G3
SET2 H3
PG1 G5
PG2 G2
R18
OPT
C6
4.7uF
C22
OPT
R11
49.9k
E6
GND
R7
100k
R1 1M
E10
VEMI
J2
VOUT1
1
2
3
4
5
C13
4.7uF
R17
OPT
E15 PG2
C2
0.1uF
E13
VOUT2
R2 100k
C20
4.7uF
E4
GND
R16
100k
R15
33.2k
R36
0
1210
E2
GND
RFB1
MPZ2012S221AT000
E12 GND
JP1
HDR.
1
2
3
SET1
VOUT1
VOUT2
SET2
VOUT2
SET2
VOUT1
SET1
9
DEMO MANUAL DC3071A
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog
Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications
subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
REVISION HISTORY
REV DATE DESCRIPTION PAGE NUMBER
0 11/22 Initial Release —
10
DEMO MANUAL DC3071A
Rev. 0
ANALOG DEVICES, INC. 2022
11/22
www.analog.com
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.
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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
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