LTC3609EWKG#PBF Linear Technology, LTC3609EWKG#PBF Datasheet - Page 22

• Manufacturer Part Number: LTC3609EWKG#PBF
• Description: IC DC/DC CONV STP-DWN 6A 52-QFN
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC3609EWKG#PBF

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: 0.6 ~ 36 V
• Current - Output: 6A
• Voltage - Input: 4 ~ 32 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 52-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Frequency - Switching: -

LTC3609
Typical applicaTions

5V TO 32V
1.2V AT
V
200mV/DIV
GND
OUT
V
6A
IN
5A/DIV
V
C
100µF
OUT
OUT1
I
L
C5: TAIYO YUDEN JMK316BJ226ML-T
C
C
L
KEEP POWER GROUND AND SIGNAL
GROUND SEPARATE. CONNECT AT
ONE POINT.
x2
IN
OUT
I
: CDEP850R8MC-88
LOAD STEP 1A TO 6A
V
V
FCB = 0V
C
4.7µF
50V
x2
IN
OUT
: MURATA GRM32ER71H475K
IN
: MURATA GRM435R60J167M
= 12V
= 1.2V
0.8µH
Transient Response
L1
V
IN
20µs/DIV
GND
41
42
43
44
45
46
47
48
49
50
51
52
SW
SW
SW
SW
SW
SW
SW
PV
PV
PV
PV
PV
IN
IN
IN
IN
IN
1
40 39 38 37 36 35 34 33
2
3
3609 TA02b
INTV
4
5V to 32V Input to 1.2V/6A at 550kHz
CC
5
4.7µF
CMDSH-3
C
6.3V
6
VCC
D
B
7
LTC3609
8
SW
SW
SW
9 10 11
INTV
32
C
0.22µF
CC
31
B1
0.1µF
30 29 28 27
C
SS
2
12 13 14
C
0.1µF
25V
F
PGOOD
C
0.1µF
90
85
80
75
70
65
60
55
50
VON
SGND
SGND
SGND
V
0.01
FCB
RNG
V
I
NC
NC
NC
I
ON
R
TH
1
FB
V
FREQUENCY = 550kHz
F1
IN
26
25
24
23
22
21
20
19
18
17
16
15
= 12V
Efficiency vs Load Current
V
IN
LOAD CURRENT (A)
0.1
SGND
V
OUT
R1
60.4k
1%
R3
0
PGOOD
C4
0.01µF
60.4k
182k
R
EXTV
100k
R
1%
1%
1
R2
PG1
ON
8.45k
INTV
CC
R5
CC
V
3609 TA02c
V
IN
OUT
1500pF
100pF
C
C
C1
C2
3609 TA03
10
INTV
CC
JP1
3609fb