DC1245A Linear Technology, DC1245A Datasheet - Page 8

• 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