DC2123A - Schematic

5
4
3
2
1
PVIN
PVIN
12V - 57V
IVINN
E1
RIN1
0.003
1%
2512
E2
D
GND
R5
51
5%
C6
4.7uF
100V
1210
C5
(Opt)
1210
R7
0 Ohm
1206
C7
4.7uF
100V
1210
C8
(Opt)
1210
C9
(Opt)
1210
C10
+ C11
+ 47µF
(Opt)
12.5mm Dia.
Thru-Hole
80V
D
VIN
VIN
12V - 57V
E3
E18
(Opt)
OUT
C1
9
PVIN
E7
1
R12
0 Ohm
VREF
6
4
*C/10
E10
8
7
TP1
33
TP2
34
R13
0 Ohm
0603
E14
GND
200k
5%
GND
VREF
R17
100k
5%
E16
GND
12
SNSN
ISMON
BG2
CLKOUT
SW2
SYNC
TG2
FB
R16
E15
IVINMON
R14
0 Ohm
INTVCC
32
CCM
ISP
C29
0.033µF
0402
ISN
PWMOUT
SS
2
SS
PWM
CSS1
33nF
35
E17
GND
R18
147k
200kHz
(Opt)
12.5mm Dia.
Thru-Hole
14
TG1
C12
0.1µF
0402
16
SW1
2
18
+ C20
+ C30
220µF
35V
220µF
35V
C13
0.1µF
0402
L1
10µH
SER2918H-103KL
BG1
0.008
M4
RJK0451DPB
2512
R34
1.37k
0603
R22
0 Ohm
D4
(Opt)
SMB
VOUT
24V 5A
C
E20
GND
C21
1
3
E19
RS2
ISP
R19
71.5k
0603
(Opt)
M3
RJK0451DPB
R20
3.83k
D3
(Opt)
SMB
27
INTVCC
ALL CAPACITORS 0603.
ISP
RS1
0.004
1%
2010
TG1
SW1
BG1
19
BG2
21
SW2
24
TG2
37
FB
SNSP
TG2
BG2
FB
PWMOUT
*C/10
25
VREF
26
SS
31
3
INTVCC
PWMOUT
PWM
*SHORT
R21
0 Ohm
0603
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.
CC2
1000pF
CC1
0.01µF
APPROVALS
TECHNOLOGY
PCB DES.
APP ENG.
A
LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY
TITLE: SCHEMATIC
SIZE
C:\PADS PROJECTS\2123A(LT3790)\SCH\2123A_REV1.DSN
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
3
1630 McCarthy Blvd.
Milpitas, CA 95035 www.linear.com
Phone: (408)432-1900
Fax: (408)434-0507
60VIN, 60VOUT FOUR-SWITCH
SYNCHRONOUS BUCK-BOOST CONTROLLER
ALL RESISTORS 0402 1%.
4
B
SW2
TP3
RC1
15k
5%
NOTE: UNLESS OTHERWISE SPECIFIED.
28
SNSP
TP4
A
5
+ C19
VOUT
22
C/10
PGND
B
TP6
E11
ISMON
E12
CLKOUT
E13
SYNC
SNSP
SGND
IVINMON
C18
(Opt)
1210
PWM
SHORT
20
17 PGND
C/10
C17
(Opt)
1210
15
M2
RJK0651DPB
BG1
30
39 SGND
E9
5
*SHORT
SW1
VREF
TEST1
SHORT
C2
0.1µF
0402
VC
E8
U1
LT3790EFE
29
R8
(Opt)
CTRL
C16
(Opt)
1210
D2
BAT46WJ
13
OVLO
TG1
C15
4.7µF
50V
1210
D1
BAT46WJ
M1
RJK0651DPB
R11
27.4k
CTRL
R10
200k
5%
0603
11
BST2
38
TP5
R6
200k
5%
0603
INTVCC
BST1
OVLO
INTVCC
C4
4.7µF
10V
R9
(Opt)
RT
E6
EN/UVLO
36
R1
499k
0603
R3
56.2k
C14
4.7µF
50V
1210
INTVCC
VIN
E5
C
0402
IVINP
GND
EN/UVLO
C3
1µF
100V
1206
0.47µF
10
E4
R4
499K
0603
IVINN
R2
(Opt)
0603
SCALE = NONE
2
IC NO.
N/A
LT3790EFE
DC2123A
MODIFY DATE:
Nov 24, 2014
REV.
1
SHEET
1
1
OF
2
INTVCC
IVINN
PWM
ISP
TG1
M5
(Opt)
LFPAK
R24
VIN
D5
ISP
TG2
(Opt)
0603
IVINN
M8
(Opt)
LFPAK
R29
(Opt)
0603
SW1
TG1
SW1
BG1
SW2
SNSP
TG2
(Opt)
SOD-123
SW2
SW1
D6
ISP
SW2
BG1
BG2
BG2
(Opt)
SOD-123
M6
(Opt)
LFPAK
R23
(Opt)
0603
(Opt)
0603
SNSP
FB
M7
(Opt)
LFPAK
R30
PWMOUT
*C/10
VREF
SNSP
SS
ISP
*SHORT
VREF
R27
(Opt)
0603
VREF
R26
(Opt)
0603
C22
(Opt)
R28
(Opt)
0603
FB
E21
PWM
PWM
R31
(Opt)
0603
E22
INTVCC
M10
(Opt)
SOT-23
*SHORT
R25
(Opt)
INTVCC
D7
(Opt)
SOD-523
E23
SS
LED(Opt)
M9
(Opt)
SOT-23
R32
(Opt)
0603
*C/10
PWMOUT
M11
(Opt)
SOT-23
E24
C28
(Opt)
PVIN
PVIN
10mm Dia. Surface Mount
L2
4.7µH
C23
+ 47µF
80V
(Opt)
C24
4.7µF
100V
1210
(Opt)
7443551470
C25 Wurth Electronik
4.7µF
(Opt)
100V
1210
(Opt)
GND
PVIN
L3
4.7µH
C26
4.7µF
100V
1210
(Opt)
M12
(Opt)
LFPAK
7443551470
C27 Wurth Electronik
4.7µF
(Opt)
100V
1210
(Opt)
APPROVALS
PCB DES.
APP ENG.
SCALE = NONE
TECHNOLOGY
1630 McCarthy Blvd.
Milpitas, CA 95035 www.linear.com
Phone: (408)432-1900
Fax: (408)434-0507
LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY
TITLE: SCHEMATIC
60VIN, 60VOUT FOUR-SWITCH
SYNCHRONOUS BUCK-BOOST CONTROLLER
SIZE
IC NO.
REV.
LT3790EFE
N/A
1
DC2123A
MODIFY DATE: Nov 24, 2014
SHEET
2
OF
2
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