LTC3609EWKG#PBF Linear Technology, LTC3609EWKG#PBF Datasheet - Page 26

• 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 applicaTion
relaTeD parTs
PART NUMBER DESCRIPTION
LTC3602
LTC3608
LTC3610
LTC3611
LTC3414/
LTC3416
LTC3415
LTC3418

14V TO 32V
12V AT
V
GND
OUT
V
4A
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
IN
C
180µF
OUT1
2.5A (I
Converter
18V, 8A (I
Converter
24V, 12A (I
Converter
32V, 10A (I
Converter
4A (I
Converter
7A (I
Converter
8A (I
Converter
16V
C
C
L
KEEP POWER GROUND AND SIGNAL
GROUND SEPARATE. CONNECT AT
ONE POINT.
IN
OUT
I
: CDEP4R3MC-88
C
4.7µF
x2
: MURATA GRM31CR71H475K
+
IN
OUT
OUT
OUT
: SANYO 16SVP180MX
OUT
), 4MHz, Synchronous Step-Down DC/DC
), 1.5MHz, Synchronous Step-Down DC/DC
), 4MHz, Synchronous Step-Down DC/DC
OUT
l
), 3MHz, Synchronous Step-Down DC/DC
4.3µH
OUT
OUT
FAX: [phone]
L1
), 1MHz, Synchronous Step-Down DC/DC
), 1MHz, Synchronous Step-Down DC/DC
), 1MHz, Synchronous Step-Down DC/DC
V
IN
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
l
Figure 8. 14V to 32V Input to 12V/4A at 500kHz
www.linear.com
3
INTV
4
CC
5
4.7µF
CMDSH-3
C
6.3V
6
VCC
D
B
7
LTC3609
8
SW
SW
SW
9 10 11
INTV
32
COMMENTS
95% Efficiency, V
4mm × 4mm QFN-20, TSSOP-16E Packages
95% Efficiency, V
7mm × 8mm QFN-52 Package
95% Efficiency, V
9mm × 9mm QFN-64 Package
95% Efficiency, V
9mm × 9mm QFN-64 Package
95% Efficiency, V
TSSOP20E Package
95% Efficiency, V
5mm × 7mm QFN-38 Package
95% Efficiency, V
5mm × 7mm QFN-38 Package
C
0.22µF
CC
31
B1
0.1µF
30 29 28 27
C
SS
2
12 13 14
C
0.1µF
50V
F
IN
IN
IN
IN
IN
IN
IN
PGOOD
C
0.1µF
VON
: 4.5V to 10V, V
: 4V to 18V, V
: 4V to 24V, V
: 4V to 32V, V
: 2.25V to 5.5V, V
: 2.5V to 5.5V, V
: 2.25V to 5.5V, V
SGND
SGND
SGND
V
FCB
RNG
V
I
I
NC
NC
NC
ON
TH
R
1
FB
F1
26
25
24
23
22
21
20
19
18
17
16
15
V
IN
OUT(MIN)
OUT(MIN)
OUT(MIN)
SGND
INTV
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
CC
 LINEAR TECHNOLOGY CORPORATION 2008
= 0.6V, I
= 0.6V, I
= 0.6V, I
R1
3.16k
1%
PGOOD
C4
0.01µF
= 0.6V, I
= 0.6V, I
= 0.8V, I
= 0.8V, I
EXTV
60.4k
R
R
100k
1%
1M
1%
R2
PG1
ON
Q
Q
Q
LT 0610 REV B • PRINTED IN USA
24.3k
Q
= 900µA, I
= 900µA, I
= 900µA, I
CC
INTV
Q
R5
= 75µA, I
Q
Q
= 450µA, I
= 64µA, I
= 380µA, I
CC
V
V
1000pF
OUT
IN
100pF
C
C
C1
C2
3609 TA05
SD
SD
SD
SD
SD
SD
<15µA,
<15µA,
<15µA,
<1µA,
INTV
SD
<1µA,
<1µA,
<1µA,
CC
JP1
3609fb