8
dc2448abf
DEMO MANUAL
DC2448A-B
schematic Diagram
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
WHEN
VIN
<
5.5V,
SHORT
PVCC
TO
VIN
WITH
R44
=
0
OHM,
AND
SET
R43
=
0
OHM
AND
REMOVE
R45.
R50
CAN
BE
SET
TO
0
OHM
FOR
ON
BOARD
COMPENSATION,
OR
UNSTUFFED
FOR
EXTERNAL
OPTIMIZED
COMPENSATION.
COMP
CLKOUT_U2
RUN
PGOOD
VFB
HIZREG
OVER_TEMP
CLKOUT_U1
GND_SNS
TRACK/SS
VOUT
VIN_HS
VIN_HS
VIN_HS
BIAS
BIAS
SIZE
DATE:
IC NO.
REV.
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
4
DEMO
CIRCUIT
2448A
Friday,
March
10,
2017
25
FOUR
PHASE,
STEP-DOWN
MODULE
N/A
LTM4636EY/LTM4636EY-1
` \
l _
REGULATOR
WITH
HOTSWAP
INPUT
SIZE
DATE:
IC NO.
REV.
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
4
DEMO
CIRCUIT
2448A
Friday,
March
10,
2017
25
FOUR
PHASE,
STEP-DOWN
MODULE
N/A
LTM4636EY/LTM4636EY-1
` \
l _
REGULATOR
WITH
HOTSWAP
INPUT
SIZE
DATE:
IC NO.
REV.
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
4
DEMO
CIRCUIT
2448A
Friday,
March
10,
2017
25
FOUR
PHASE,
STEP-DOWN
MODULE
N/A
LTM4636EY/LTM4636EY-1
` \
l _
REGULATOR
WITH
HOTSWAP
INPUT
CIN8 22uF 25V 1210
C17
2200pF
CO10 100uF 6.3V 1210
R48
OPT
E30
TMON_U2
R47
[2]
C14
22uF 1206
E26
PWM2
E24
TEMP-_U2
R45
0
R73
[2]
CO9 100uF 6.3V 1210
R44 OPT
C16 OPT
CIN9 22uF 25V 1210
R50
0
E28
SW2
CIN7 22uF 25V 1210
R49
2.2
0805
U2
LTM4636EY/LTM4636EY-1
GMON
H9
SNSP1
F2
TEST3
H2
HIZREG
F3
PGOOD
E1
SW
L11
RUNP
G8
CLKOUT
G3
SNSP2
F1
TEST2
F5
RUNC
E2
TRACK/SS
E3
VFB
E4
TEST4/CROWBAR
E11
GND
M9
GND
M10
GND/OVP_SET
E12
COMPB
D5
COMPA
E5
NC/BIAS
G9
PHASEMD
G7
TEMP
+
G12
TEMP
-
G11
GND
M12
VOSNS1
D4
VOSNS-
D3
GND/OVP_TRIP
E10
INTVCC
F6
MODE_PLLIN
H3
PWM
H7
PVcc
F9
GND/OVER_TEMP
D10
TEST1
H4
GND
M1
FREQ
G5
GND
M2
TMON
H8
GND
M11
SGND
G4
SGND
F4
SW
K11
VOUT
A1
VOUT
A2
VOUT
A3
VOUT
A4
VOUT
A5
VOUT
A6
VOUT
A7
VOUT
A8
VOUT
A9
VOUT
A10
VOUT
A11
VOUT
A12
VOUT
B1
VOUT
B2
VOUT
B3
VOUT
B4
VOUT
B5
VOUT
B6
VOUT
B7
VOUT
B8
VOUT
B9
VOUT
B10
VOUT
B11
VOUT
B12
VOUT
C1
VOUT
C2
VOUT
C3
VOUT
C4
VOUT
C5
VOUT
C6
VOUT
C7
VOUT
C8
VOUT
C9
VOUT
C10
VOUT
C11
VOUT
C12
VOUT
D1
VOUT
D2
VOUT
D11
VOUT
D12
GND
M3
GND
D6
GND
D7
GND
D8
GND
D9
GND
E6
GND
E7
GND
E8
GND
E9
GND
F7
GND
F8
GND
F10
GND/OTP_SET
F11
GND
F12
GND
G1
GND
G2
GND
G6
GND
G10
GND
H10
GND
H11
GND
H12
GND
H1
GND
J1
GND
J2
GND
J3
GND
J8
GND
J9
GND
J10
GND
J11
GND
J12
GND
K1
GND
K2
GND
K3
GND
K9
GND
K10
GND
K12
GND
L1
GND
L2
GND
L3
GND
L9
GND
L10
GND
L12
VIN
H5
VIN
H6
VIN
J4
VIN
J5
VIN
J6
VIN
J7
VIN
K4
VIN
K5
VIN
K6
VIN
K7
VIN
K8
VIN
L4
VIN
L5
VIN
L6
VIN
L7
VIN
L8
VIN
M4
VIN
M5
VIN
M6
VIN
M7
VIN
M8
CO8 100uF 6.3V 1210
C18 OPT
CO7 100uF 6.3V 1210
R51
34.8k
1%
CIN6 22uF 25V 1210
CO11 100uF 6.3V 1210
E25
TEMP+_U2
+
CO12 470uF 4V 7343
E27
CLKOUT_U2
R43
OPT
+
CO13 470uF 4V 7343
E29
TRACK/SS
C15
0805
4.7uF
PVcc
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