DC1245A Linear Technology, DC1245A Datasheet - Page 8
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DC1245A
Manufacturer Part Number
DC1245A
Description
BOARD DEMO LTM4616
Manufacturer
Linear Technology
Series
µModuler
Specifications of DC1245A
Design Resources
LTM4616 Spice Model LTM4616 Gerber Files DC1245 Design Files
Main Purpose
DC/DC, Step Down
Outputs And Type
2, Non-Isolated
Power - Output
-
Voltage - Output
1.2V, 1.8V
Current - Output
8A, 8A
Voltage - Input
2.7 ~ 5.5 V
Regulator Topology
Buck
Frequency - Switching
1.5MHz
Board Type
Fully Populated
Utilized Ic / Part
LTM4616
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
LTM4616
siMpliFieD block DiagraM
8
PGND1
PGND2
V
V
OUT1
OUT2
PHMODE1
PHMODE2
CLKOUT1
CLKOUT2
PLLLPF1
PLLLPF2
PGOOD1
PGOOD2
TRACK1
TRACK2
MODE1
CLKIN1
MODE2
CLKIN2
SGND1
SGND2
BSEL1
BSEL2
MGN1
MGN2
SV
RUN1
I
SV
RUN2
I
THM1
THM2
I
I
TH1
TH2
IN1
IN2
BSEL2
50k
50k
PLLLPF2
PLLLPF1
CLKIN2
INTERNAL
INTERNAL
BSEL1
SV
RUN1
SV
COMP
COMP
SW2
SW1
IN2
IN1
V
IN1
Figure 1. Simplified LTM4616 Block Diagram
M
H
G
D
L
K
J
F
E
C
B
A
INTERNAL
INTERNAL
FILTER
FILTER
1
2
V
IN2
3
LOOKING THROUGH COMPONENT
4
INTERNAL
INTERNAL
CONTROL
CONTROL
TOP VIEW OF LGA PINOUT
POWER
POWER
FILTER
FILTER
SGND2
5
SGND1
CLKIN1
RUN2
6
CLKOUT2
7
MODE1
I
TH2
8
9
PHMODE1
10
V
OUT2
M1
M2
M3
M4
11
4616 F01
12
0.22µH
0.22µH
10µF
10µF
GND2
V
GND1
OUT1
TRACK2
I
FB2
MODE2
PGOOD2
I
TRACK1
FB1
PGOOD1
MGN1
THM2
TH1
10µF
10µF
PHMODE2
MGN2
CLKOUT1
I
10µF
10µF
THM1
10k
10k
10µF
10µF
4616 BD
+
+
+
+
SW1
SW2
R
6.65k
R
10k
SET1
C
SET2
C
C
C
IN2
IN1
OUT1
OUT2
PGND1
PGND2
PGND1
V
3V TO 5.5V
V
1.5V
8A
FB2
FB1
V
1.2V
8A
PGND2
V
3V TO 5.5V
IN1
OUT1
OUT2
IN2
4616fc