DC1245A Linear Technology, DC1245A Datasheet - Page 21

• 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

applications inForMation
V
10µF
V
10µF
IN1
IN2
BSEL: HIGH = 10%
3V TO 5.5V
3V TO 5.5V
OE
H
H
L
FLOAT = 15%
LOW = 5%
IN
H
X
L
OUT
H
L
Z
V
SV
RUN1
PLLLPF1
MODE1
PHMODE1
TRACK1
V
SV
RUN2
PLLLPF2
MODE2
PHMODE2
TRACK2
IN1
IN2
IN1
IN2
MGN
V
H
IN
L
A1, A2 PERICOM PI74ST1G126CEX
TOSHIBA TC7SZ126AFE
/2
SW1
SW2
Figure 18. Typical 3V to 5.5V
MARGIN VALUE
+ Value of BSEL Selection
– Value of BSEL Selection
No Margin
CLKIN1
CLKIN1
SGND1
CLKOUT1 CLKIN2
LTM4616
GND1
SGND2
IN
CLKOUT2
GND2
, to 1.8V, 1.5V Outputs
PGOOD1
PGOOD2
BSEL1
BSEL2
V
MGN1
V
MGN2
I
I
THM1
THM2
OUT1
OUT2
4616 F18
I
I
FB1
FB2
TH1
TH2
4.87k
6.65k
PGOOD
BSEL
PGOOD
BSEL
R3
50k
R4
50k
V
R2
50k
R1
50k
IN
100µF
100µF
×2
V
1.5V/8A
V
OUT2
IN
V
1.8V/8A
OUT1
OUT
OUT
5 PIN SC70 PACKAGE
5 PIN SC70 PACKAGE
GND
GND
A2
V
A1
V
LTM4616
+
–
+
+
–
+
I
I
I
I
OE
IN
OE
IN
21
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