9
dc2066af
DEMO MANUAL DC2066A
schematic DiaGram
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
NOTE: UNLESS OTHERWISE SPECIFIED
1. ALL RESISTORS ARE 0603. ALL CAPACITORS ARE 0603.
35V
4.5V - 16V
1.0V / 18A
2.5V
EEFGX0E471R
1.8V / 18A
2.5V
EEFGX0E471R
1210
1210
1210
1210
1210
1210
1210
1210
1210
1210
0.035 VIA TESTPOINTS
WITH DIGITAL POWER MANAGEMENT
*
WHEN VIN < 5.75V, SHORT INTVCC TO VIN WITH R8 = 0ohm.
*
OFF
ON
ON
OFF
VOSNS0-
SYNC
SHARE_CLK
ALERTB
SCL
SDA
GPIO0B
GPIO1B
ASEL
FREQ_CFG
VOUT0_CFG
VTRIM0_CFG
VOUT1_CFG
VTRIM1_CFG
RUN1
VDD25
RUN0
INTVCC
VOSNS1
VIN
VOUT0
VOUT1
VIN
SYNC
SHARE_CLK
ALERTB
SCL
SDA
GPIO0B
GPIO1B
COMP0a
COMP1a
RUN0
RUN1
VDD33
SIZE
DATE:
.V
ER
.O
N
CI
SHEET
OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax: (408)434-0507
Milpitas, CA 95035 Phone: (408)432-1900
1630 McCarthy Blvd.
LTC Confidential-For Customer Use Only
CUSTOMER NOTICE
LINEAR TECHNOLOGY 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 LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
1
Friday, July 17, 2015
1
3
DUAL STEP-DOWN uMODULE REGULATOR
HZ
HAORAN W.
B
LTM4677EY DEMO CIRCUIT 2066A
SIZE
DATE:
.V
ER
.O
N
CI
SHEET
OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax: (408)434-0507
Milpitas, CA 95035 Phone: (408)432-1900
1630 McCarthy Blvd.
LTC Confidential-For Customer Use Only
CUSTOMER NOTICE
LINEAR TECHNOLOGY 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 LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
1
Friday, July 17, 2015
1
3
DUAL STEP-DOWN uMODULE REGULATOR
HZ
HAORAN W.
B
LTM4677EY DEMO CIRCUIT 2066A
SIZE
DATE:
.V
ER
.O
N
CI
SHEET
OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax: (408)434-0507
Milpitas, CA 95035 Phone: (408)432-1900
1630 McCarthy Blvd.
LTC Confidential-For Customer Use Only
CUSTOMER NOTICE
LINEAR TECHNOLOGY 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 LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
1
Friday, July 17, 2015
1
3
DUAL STEP-DOWN uMODULE REGULATOR
HZ
HAORAN W.
B
LTM4677EY DEMO CIRCUIT 2066A
REVISION HISTORY
DESCRIPTION
DATE
APPROVED
ECO
REV
HAORAN W.
PRODUCTION
51-
71-
7
1
__
REVISION HISTORY
DESCRIPTION
DATE
APPROVED
ECO
REV
HAORAN W.
PRODUCTION
51-
71-
7
1
__
REVISION HISTORY
DESCRIPTION
DATE
APPROVED
ECO
REV
HAORAN W.
PRODUCTION
51-
71-
7
1
__
E13
GPIO0B
E4
VIN
COUT1 100uF
+
COUT11 470uF
EEFGX0E471R
2.5V
CIN3 10uF
J7
VOUT0
R18 10K
CIN2 10uF
R9
0
SW0
RUN0
1
3
2
E9
SYNC
R10 10K
+
COUT10 470uF
EEFGX0E471R
2.5V
R7
0
E17
GND0_SNS
R33
0
COUT7 100uF
R8
OPT
C2
OPT
J10
VIN
CIN5 10uF
R20
OPT
0805
J5
GND
U1
LTM4677EY
VOUT0
A1
VOUT0
A2
VOUT0
A3
VOUT0
D1
VO
UT1
J1
VO
UT1
J2
VO
UT1
J3
VO
UT1
K1
VOUT0
B1
VOUT0
B2
VOUT0
B3
VOUT0
D2
VO
UT1
K2
VO
UT1
K3
VO
UT1
L1
VO
UT1
L2
VOUT0
C1
VOUT0
C2
VOUT0
C3
VOUT0
D3
GND
A4
GND
A6
GND
A7
GND
A8
VO
UT1
L3
VO
UT1
M1
VO
UT1
M2
VO
UT1
M3
GND
A9
GND
A10
GND
B4
GND
B5
ASEL
G4
FSWPHCFG
H4
GND
B6
GND
B7
GND
B8
GND
B9
GPIO0
E4
GPIO1
F4
SNUB0
A5
GND
C4
TSNS0B
C5
TSNS0A
D5
ALERT
E5
RUN0
F5
VOUT0CFG
G5
VTRIM0CFG
H5
TS
NS
1A
J5
TS
NS
1B
K5
GND
C6
SNU
B1
M5
GND
C7
GND
C8
GND
C9
SDA
D6
SCL
E6
RUN1
F6
VOUT1CFG
G6
VTRIM1CFG
H6
VDD25
J6
WP
K6
GND
D4
GND
E3
GND
F3
GND
F10
GND
G3
GND
G10
SYNC
E7
GND
M9
GND
M10
SHARE_CLK
H7
VDD33
J7
GND
G11
GND
G12
GND
L8
GND
L7
GND
L9
GND
H3
COMP0b
D8
COMP0a
E8
SG
ND
F7
SG
ND
F8
COM
P1a
H8
COM
P1b
J8
GND
H10
GND
J4
GND
M8
D9
VOSNS0-
E9
INTVCC
F9
INTVCC
G9
VO
SN
S1
H9
VO
RB
1
J9
GND
J10
GND
L4
GND
L5
GND
K4
SW0
B10
NC
E11
VORB0+
D10
VORB0-
E10
GND
L6
GND
K7
GND
K8
GND
K9
NC
C10
SW
1
L10
GND
M4
VIN0
B12
VIN0
B11
VIN0
A12
VIN0
A11
NC
K10
SVIN
F12
GND
M6
NC
H11
VIN
1
H12
VIN
1
J11
VIN
1
J12
VIN
1
K11
VIN0
E12
VIN0
D12
VIN0
D11
VIN0
C12
VIN0
C11
SVIN
F11
GND
M7
VIN
1
K12
VIN
1
L11
VIN
1
L12
VIN
1
M11
VIN
1
M12
SG
ND
G7
SG
ND
G8
GND
D7
ISNS0a-
E1
ISNS0b-
E2
F1
F2
IS
NS
1b-
G1
IS
NS
1a-
G2
IS
NS
1b+
H1
IS
NS
1a+
H2
E16
VDD25
R14 10K
R32
0
COUT8 100uF
C14
1.8nF
C1
1.8nF
+
COUT5 470uF
P1
R24 10K
R30
0
E7
GND1_SNS
SW1
RUN1
1
3
2
R29
(OPT)
R16 10K
E8
VDD33
COUT6 100uF
E12
SDA
C15 OPT
P2
J8
GND
R25
0
+
COUT9 470uF 2.5V EEFGX0E471R
P4
C17 OPT
R11 10K
+
COUT4 470uF
R19 10K
P5
R23
OPT
R3 0
E14
GPIO1B
COUT3 100uF
E15
VOUT0_SNS
COUT2 100uF
J9
GND
R6 OPT
R27
(OPT)
E3
INTVCC
+
CIN1 150uF
R15 10K
R2 17.8K
E1
VOUT1_SNS
E10
ALERTB
R17
OPT
0805
R13 10K
E11
SCL
R22 17.8K
+
COUT12 470uF
EEFGX0E471R
2.5V
R12 10K
E6
SHARE_CLK
P3
CIN4 10uF
R28
(OPT)
E2
GND
C16 OPT
J6
VOUT1
R31
6.34K
R26
(OPT)
E5
GND
Figure 12. DC2066A Demo Circuit Schematic, Page 1
