LTC3609EWKG#PBF Linear Technology, LTC3609EWKG#PBF Datasheet - Page 21

• 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: -

Typical applicaTions
1.5V AT
V
GND
3.6V
OUT
V
6A
IN
200mV/DIV
C
100µF
5A/DIV
OUT1
V
C
C
L
KEEP POWER GROUND AND SIGNAL
GROUND SEPARATE. CONNECT AT
ONE POINT.
x2
OUT
I
IN
OUT
: CDEP850R5MC-125
I
C
4.7µF
50V
x2
L
: MURATA GRM32ER71H475K
IN
: MURATA GRM435R60J167M
LOAD STEP 1A TO 5A
V
V
FCB = 0V
IN
OUT
= 3.6V
0.5µH
= 1.5V
L1
Transient Response
V
IN
GND
41
42
43
44
45
46
47
48
49
50
51
52
20µs/DIV
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
INTV
4
3609 TA02b
CC
5
4.7µF
CMDSH-3
3.6V Input to 1.5V/6A at 750kHz
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
50V
F
PGOOD
C
0.1µF
VON
SGND
SGND
SGND
V
100
FCB
RNG
V
I
I
NC
NC
NC
95
90
85
80
75
70
65
60
55
50
ON
TH
FB
0.01
V
5V
BIAS
26
25
24
23
22
21
20
19
18
17
16
15
Efficiency vs Load Current
SGND
V
OUT
LOAD CURRENT (A)
0.1
R1
40.2k
1%
PGOOD
C4
0.01µF
V
FREQUENCY = 750kHz
IN
EXTV
= 3.6V
R
100k
60.4k
113k
R
1%
1%
PG1
R2
ON
1
CC
INTV
8.45k
R5
CC
V
V
OUT
IN
LTC3609
3609 TA02c
1500pF
100pF
C
C
C1
C2
10
3609 TA02
INTV

CC
JP1
3609fb