DC1198A-A Linear Technology, DC1198A-A Datasheet - Page 22

• Manufacturer Part Number: DC1198A-A
• Description: BOARD EVAL LTM4605
• Manufacturer: Linear Technology
• Series: µModuler

Specifications of DC1198A-A

• Design Resources: LTM4605 Spice Model LTM460(5,7) Gerber Files DC1198 Design Files DC1198A-(A,B) Schematic
• Main Purpose: DC/DC, Step Up or Down
• Outputs And Type: 1, Non-Isolated
• Power - Output: -
• Voltage - Output: 12V
• Current - Output: 5A
• Voltage - Input: 4.5 ~ 20V
• Regulator Topology: Buck-Boost
• Frequency - Switching: 300kHz
• Board Type: Fully Populated
• Utilized Ic / Part: LTM4605
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

LTM4605
TYPICAL APPLICATIONS
22
6V TO 15V
5.1V
ZENER
V
–5V
IN
R1
4.64k
R3
1.21k
–5V
0.1μF
R4
324k
C1
–5V
10μF
35V
×2
ON/OFF
10nF
C3
2-PHASE OSCILLATOR
PGOOD
RUN
COMP
INTV
PLLFLTR
EXTV
STBYMD
SS
SGND
V
GND
SET
Figure 19. Buck Mode Operation with Positive Input to Negative –5V Output Converter
+
LTC6908-1
CC
CC
4.5V TO 20V
OUT1
OUT2
V
LTM4605
MOD
IN
PGND
–5V
V
PLLIN
IN
SENSE
SENSE
R
SENSE
V
4605 TA08
SW1
SW2
Figure 18. Two-Phase Parallel, 12V at 10A Design
FCB
OUT
V
FB
+
–
200Ω
CLOCK SYNC
10μF
35V
10μF
35V
–5V
3.5μH
L1
R
19.1k
FB
R2
8mΩ
R5
100k
–5V
5.1V
0.1μF
–5V
C3
22μF
16V
×2
+
–5V
PGOOD
RUN
COMP
INTV
PLLFLTR
EXTV
STBYMD
SS
SGND
PGOOD
RUN
COMP
INTV
PLLFLTR
EXTV
STBYMD
SS
SGND
180μF
16V
×2
CC
CC
CC
CC
GND
V
V
LTM4605
LTM4605
IN
IN
PGND
PGND
PLLIN
PLLIN
CLOCK SYNC 0° PHASE
CLOCK SYNC 180° PHASE
SENSE
SENSE
SENSE
SENSE
R
R
SENSE
SENSE
V
V
4605 TA06
SW1
SW2
SW1
SW2
FCB
FCB
OUT
OUT
V
V
FB
FB
+
–
+
–
95
90
85
80
75
70
65
60
55
50
0
3.3μH
3.3μH
L1
L2
R2
7mΩ
R
3.57k
R3
7mΩ
FB
1
Effi ciency vs Load
LOAD CURRENT (A)
2
3
C2
22μF
C4
22μF
2
2
V
4
+
+
OUT
= –5V
V
V
V
330μF
25V
330μF
25V
IN
IN
IN
5
4605 TA08b
= 6V
= 12V
= 15V
6
4605fc
V
12V
10A
OUT