Datasheet
LTC3569
2
3569fe
For more information www.linear.com/LTC3569
absoluTe MaxiMuM raTings
SV
IN
Voltage .........................–0.3V to 6V (7V Transient)
PV
INX
Voltage .........................S
VIN
– 0.3V to S
VIN
+ 0.3V
ENx, MODE, PGOOD, SWx, FBx ..... –0.3V to S
VIN
+ 0.3V
R
T
Voltage .................................................... –0.3V to 6V
PGOOD Current ...................................................... ±1mA
FE PACKAGE
16-LEAD PLASTIC TSSOP
1
2
3
4
5
6
7
8
TOP VIEW
16
15
14
13
12
11
10
9
FB3
SV
IN
SGND
EN3
EN2
EN1
SW3
*PV
IN1
FB1
FB2
R
T
MODE
PGOOD
PV
IN2
SW2
SW1
17
T
JMAX
= 125°C, θ
JA
= 38°C/W
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
*SHARES POWER WITH PV
IN3
20 19 18 17
7 8
TOP VIEW
21
GND
UDC PACKAGE
20-LEAD (3mm × 4mm) PLASTIC QFN
9 10
6
5
4
3
2
1
11
12
13
14
15
16
PGND2
SW2
PV
IN2
PGOOD
MODE
R
T
SW3
PGND3
EN1
EN2
EN3
SGND
PGND1
SW1
PV
IN1
PV
IN3
FB2
FB1
FB3
SV
IN
T
JMAX
= 125°C, θ
JA
= 43°C/W
EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB
20 19 18 17 16
7 8
TOP VIEW
21
UD PACKAGE
20-LEAD (3mm × 3mm) PLASTIC QFN
9
10
SW2
PV
IN2
PGOOD
MODE
R
T
SW3
PGND3
EN1
EN2
EN3
PGND2
PGND1
SW1
PV
IN1
PV
IN3
FB2
FB1
FB3
SV
IN
SGND
12
11
13
14
15
4
5
3
2
1
6
T
JMAX
= 125°C, θ
JA
= 68°C/W
EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB
pin conFiguraTion
orDer inForMaTion
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3569EUD#PBF LTC3569EUD#TRPBF LDQF
20-Lead (3mm × 3mm) Plastic QFN
–40°C to 125°C
LTC3569IUD#PBF LTC3569IUD#TRPBF LDQF
20-Lead (3mm × 3mm) Plastic QFN
–40°C to 125°C
LTC3569EUDC#PBF LTC3569EUDC#TRPBF LFYW
20-Lead (3mm × 4mm) Plastic QFN
–40°C to 125°C
LTC3569IUDC#PBF LTC3569IUDC#TRPBF LFYW
20-Lead (3mm × 4mm) Plastic QFN
–40°C to 125°C
LTC3569EFE#PBF LTC3569EFE#TRPBF 3569FE 16-Lead Plastic TSSOP –40°C to 125°C
LTC3569IFE#PBF LTC3569IFE#TRPBF 3569FE 16-Lead Plastic TSSOP –40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
Operating Junction Temperature Range
(Notes 6, 7) ............................................ –40°C to 125°C
Storage Temperature Range .................. –65°C to 125°C
Peak Reflow Temperature .....................................260°C
(Notes 1, 6)