LTC3569_15 Datasheet, PDF (2/26 Pages) Linear Technology – Triple Buck Regulator with 1.2A and Two 600mA Outputs and Individual Programmable References

LTC3569
Absolute Maximum Ratings ^{(Notes 1, 6)}
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
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
Pin Configuration
TOP VIEW
TOP VIEW
TOP VIEW
FB3 1
SV_IN 2
SGND 3
EN3 4
EN2 5
EN1 6
SW3 7
*PV_IN1 8
16 FB1
15 FB2
14 R_T
13 MODE
17
12 PGOOD
11 PV_IN2
10 SW2
9 SW1
FE PACKAGE
16-LEAD PLASTIC TSSOP
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
PGND2 1
SW2 2
PV_IN2 3
PGOOD 4
MODE 5
R_T 6
16 SW3
15 PGND3
21
14 EN1
GND
13 EN2
12 EN3
11 SGND
7 8 9 10
UDC PACKAGE
20-LEAD (3mm × 4mm) PLASTIC QFN
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
SW2 1
15 SW3
PV_IN2 2
14 PGND3
PGOOD 3
21
13 EN1
MODE 4
12 EN2
R_T 5
11 EN3
6 7 8 9 10
UD PACKAGE
20-LEAD (3mm × 3mm) PLASTIC QFN
T_JMAX = 125°C, θ_JA = 68°C/W
EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB
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/
3569fe
2
For more information www.linear.com/LTC3569