Analog Devices DC3186A, Demo Manual

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DEMO MANUAL DC3186A
Rev. 0
PARTS LIST
ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER
DC3186A-A Required Circuit Components
1 4 C2, C16, C23, C36 CAP., 1µF, X7T, 6.3V, 20%, 0201 MURATA, GRM033D70J105ME01D
2 17 C3-C5, C10, C17-C19, C21, C24, C25,
C28, C37, C38, C41, C42, C49, C52
CAP., 22µF, X7S, 6.3V, 20%, 0805 TDK, C2012X7S0J226M125AC
3 2 C6, C12 CAP., 0.1µF, X7R, 16V, 10%, 0402, AEC-Q200 MURATA, GCM155R71C104KA55D
4 8 C7, C8, C20, C26, C27, C31, C43, C45 CAP., 0.01µF, X7R, 6.3V, 10%, 0201 AVX, 02016C103KAT2A
5 1 C11 CAP., 6.8pF, C0G/NP0, 50V, ±0.5pF, 0402 AVX, 04025A6R8DAT2A
6 1 C14 CAP., 470pF, C0G, 50V, 5%, 0402, AEC-Q200 TDK, CGA2B2C0G1H471J050BA
7 4 C30, C50, C51, C53 CAP., 10µF, X7S, 6.3V, 20%, 0603 TDK, C1608X7S0J106M080AC
8 4 L1-L4 IND., 0.1µH, PWR, SHIELDED, 20%, 25.8A, 1.8mΩ,
4.3mm × 4.3mm, XEL4030, AEC-Q200
COILCRAFT, XEL4030-101MEB
9 1 R1 RES., 1M, 1%, 1/16W, 0402, AEC-Q200 STACKPOLE ELECTRONICS, INC.,
RMCF0402FT1M00
10 3 R2, R11, R14 RES., 100k, 1%, 1/16W, 0402, AEC-Q200 NIC, NRC04F1003TRF
11 1 R3 RES., 249k, 1%, 1/16W, 0402, AEC-Q200 NIC, NRC04F2493TRF
12 1 R4 RES., 274k, 1%, 1/16W, 0402, AEC-Q200 NIC, NRC04F2743TRF
13 1 R6 RES., 140k, 1%, 1/16W, 0402, AEC-Q200 NIC, NRC04F1403TRF
14 1 R7 RES., 100k, 5%, 1/16W, 0402, AEC-Q200 NIC, NRC04J104TRF
15 1 R8 RES., 3.32k, 1%, 1/10W, 0402, AEC-Q200 PANASONIC, ERJ2RKF3321X
16 4 R9, R15, R20, R21 RES., 0Ω, 1/16W, 0402 VISHAY, CRCW04020000Z0ED
17 2 R12, R13 RES., 301k, 1%, 1/16W, 0402 SAMSUNG, RC1005F3013CS
18 4 U1-U4 IC, LOW VOLTAGE SYN. STEPDOWN REG, LQFN-18 ANALOG DEVICES, LTC3311JV#PBF
Additional Demo Board Circuit Components
1 8 C1, C15, C29, C35, C39, C40, C60, C64 CAP., 470µF, TANT POLY, 6.3V, 20%, 7343 PANASONIC, 6TCE470MI
2 6 C9, C32, C54, C57, C61, C65 CAP., 0.1µF, X7R, 16V, 10%, 0402, AEC-Q200 MURATA, GCM155R71C104KA55D
3 8 C46, C47, C55, C56, C58, C59, C62, C63 CAP., 10µF, X7S, 6.3V, 20%, 0603 TDK, C1608X7S0J106M080AC
4 4 L5-L8 IND., 100Ω AT 100MHz, FERRITE BEAD, 25%, 8A,
6mΩ, 1812
WURTH ELEKTRONIK, 74279226101
5 1 Q1 XSTR., MOSFET, N-CH, 60V, 120A, TO-263 VISHAY, SUM50020E-GE3
6 2 R16, R18 RES., 0.02Ω, 1%, 10W, 2818, HP, METAL, SENSE,
AEC-Q200
VISHAY, WSHP2818R0200FEA
THEORY OF OPERATION
margin goal of 8dB or greater. Refer to the LTC3311 data
sheet and LTPowerCAD for more information on choosing
the required components.
The soft-start of the multiphase regulator is controlled by
a single cap, C12, on the master phase. After the regulator
is in regulation the SSTT pin can be used to monitor the
temperature of each IC. The master phase temperature
can be monitored at the SSTT turret and slave 1, 2, and 3
can be monitored at TP3, 4, and 6 respectively. Calculate
the die temperature with the formula below:
T
J
( ° C) =
V
SSTT
4mV
– 273
(3)