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

LTC3569
Typical Application
V_IN
L1
2.2µH
22µF _{SVIN PVIN SW1}
R1
DIGITAL
CONTROL
EN1
FB1
EN2
LTC3569
EN3
R2
L2
2.2µH
MODE
SW2
R_T
R3
511k
FB2
PGOOD
R4
L3
2.2µH
SW3
R5
FB3
SGND PGND
R6
20pF
OUT1
1200mA
C_OUT1
10µF
20pF
OUT2
600mA
C_OUT2
4.7µF
20pF
OUT3
600mA
C_OUT3
4.7µF
3569 TA02
Figure 9. Triple Programmable Buck DC/DC Regulators
Related Parts
PART NUMBER
DESCRIPTION
COMMENTS
LTC3406A/
LTC3406AB
LTC3407A/
LTC3407A-2
LTC3411A
LTC3412A
LTC3417A-2
LTC3419/LTC3419-1
LTC3544/LTC3544B
LTC3545/LTC3545-1
LTC3547/LTC3547B
LTC3548/LTC3548-1/
LTC3548-2
LTC3561
LTC3562
600mA, 1.5MHz, Synchronous Step-Down DC/DC Converter
Dual 600mA/600mA 1.5MHz, Synchronous Step-Down DC/DC
Converter
1.25A, 4MHz, Synchronous Step-Down DC/DC Converter
2.5A, 4MHz, Synchronous Step-Down DC/DC Converter
Dual 1.5A/1A, 4MHz, Synchronous Step-Down DC/DC
Converter
Dual 600mA/600mA 2.25MHz, Synchronous Step-Down
DC/DC Converter
Quad 100mA/200mA/200mA/300mA, 2.25MHz Synchronous
Step-Down DC/DC Converter
Triple, 800mA × 3, 2.25MHz Synchronous Step-Down DC/DC
Converter
Dual 300mA, 2.25MHz, Synchronous Step-Down DC/DC
Converter
Dual 400mA and 800mA I_OUT, 2.25MHz, Synchronous Step-
Down DC/DC Converter
1.25A, 4MHz, Synchronous Step-Down DC/DC Converter
Quad, I²C Interface, 600mA/600mA/400mA/400mA, 2.25MHz
Synchronous Step-Down DC/DC Converter
95% Efficiency, V_IN: 2.5V to 5.5V, V_OUT(MIN) = 0.6V, I_Q = 20µA,
I_SD <1µA, ThinSOT™ Package
95% Efficiency, V_IN: 2.5V to 5.5V, V_OUT(MIN) = 0.6V, I_Q = 40µA,
I_SD <1µA, MS10E, 3mm × 3mm DFN-10 Package
95% Efficiency, V_IN: 2.5V to 5.5V, V_OUT(MIN) = 0.8V, I_Q = 60µA,
I_SD <1µA, MS10, 3mm × 3mm DFN-10 Package
95% Efficiency, V_IN: 2.5V to 5.5V, V_OUT(MIN) = 0.8V, I_Q = 60µA,
I_SD <1µA, 4mm × 4mm QFN-16, TSSOP-16E Package
95% Efficiency, V_IN: 2.3V to 5.5V, V_OUT(MIN) = 0.8V, I_Q = 125µA,
I_SD <1µA, TSSOP-16E, 3mm × 5mm DFN-16 Package
95% Efficiency, V_IN: 2.5V to 5.5V, V_OUT(MIN) = 0.6V, I_Q = 35µA,
I_SD <1µA, MS10, 3mm × 3mm DFN-10 Package
95% Efficiency, V_IN: 2.3V to 5.5V, V_OUT(MIN) = 0.8V, I_Q = 70µA,
I_SD <1µA, 3mm × 3mm QFN-16 Package
95% Efficiency, V_IN: 2.3V to 5.5V, V_OUT(MIN) = 0.6V, I_Q = 58µA,
I_SD <1µA, 3mm × 3mm QFN-16 Package
95% Efficiency, V_IN: 2.5V to 5.5V, V_OUT(MIN) = 0.6V, I_Q = 40µA,
I_SD <1µA, DFN-8 Package
95% Efficiency, V_IN: 2.5V to 5.5V, V_OUT(MIN) = 0.6V, I_Q = 40µA,
I_SD <1µA, MS10E, 3mm × 3mm DFN-10 Package
95% Efficiency, V_IN: 2.5V to 5.5V, V_OUT(MIN) = 0.8V, I_Q = 240µA,
I_SD <1µA, 3mm × 3mm DFN-8 Package
95% Efficiency, V_IN: 2.9V to 5.5V, V_OUT(MIN) = 0.425V, I_Q = 100µA,
I_SD <1µA, 3mm × 3mm QFN-20 Package
26 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 950_Fo3_r5_m-7_o4_re1_i7_{nformation www.linear.com/LTC3569}
[phone] ^● FAX: [phone] ^● www.linear.com/LTC3569
3569fe
LT 0414 REV E • PRINTED IN USA
 LINEAR TECHNOLOGY CORPORATION 2009