LTC3675_12 Datasheet, PDF (38/38 Pages) Linear Technology – 7-Channel Confi gurable High Power PMIC

LTC3675
TYPICAL APPLICATION
Li-Ion
CELL
2.7V
TO 4.2V
2.2μF
1.2V
25mA
V_IN
10μF _324k
649k
LDO_OUT
LDOFB
V_IN
2.2μH
SW1
10μF
1.2V
1A
324k
22μF
FB1
649k
10μF
5V, 1A
22μF
V_IN
2.2μH
SW5
VOUT5
22μF
22μF 1.05M
FB5
200k
3.3V, 1A
2.2μH
10μF 332k
105k
SWAB6
SWCD6
VOUT6
FB6
LTC3675
DV_CC
I²C
1μF
CONTROL
SCL
SDA
V_IN
2.2μH
SW2
FB2
655k
309k
V_IN
2.2μH
SW3
FB3
590k
475k
2.2μH
SW4
511k
FB4
511k
10μF
2.5V
1A
22μF
10μF
1.8V
500mA
10μF
1.6V
500mA
10μF
MICROPROCESSOR
CONTROL
IRQB
RSTB
WAKE
SW7
PBSTAT
EN1
EN2
EN3
EN4
EN6
CT
LED1
0.01μF
LED2
LED_OV
ONB
LED_FS
PUSH BUTTON
EXPOSED PAD
3675 TA02
10μH
UP TO
10 LEDS
ttt
20k
10μF
4.7μF
50V
ttt
1.96M
42.2k
RELATED PARTS
PART NUMBER
LTC3569
LTC3577/
LTC3577-1/
LTC3577-3/
LTC3577-4
LTC3586/
LTC3586-1
DESCRIPTION
Triple Buck Regulator with 1.2A and
Two 600mA Outputs and Individual
Programmable References
Highly Integrated Portable/Navigation PMIC
Switching USB Power Manager with Li-Ion/
Polymer Charger, 1A Buck-Boost + Dual
Sync Buck Converter + Boost + LDO
COMMENTS
Triple, Synchronous, 100% Duty Cycle, PGOOD Pin, Programmable V_FB Servo Voltage
PMIC: Linear Power Manager and Three Buck Regulators, 10-LED Boost Regulator,
Synchronous Bucks ADJ at 800mA/500mA/500mA, PB Control, I²C Interface, 2× 150mA
LDOs, OVP Charge Current Programmable Up to 1.5A from Wall Adapter Input, Thermal
Regulation, 4mm × 7mm QFN-44 Package; "-1" and "-4" Versions Have 4.1V V_FLOAT, "-3"
Version for SiRF Atlas IV Processors
PMIC: Switching Power Manager, 1A Buck-Boost + 2 Bucks ADJ to 0.8V at
400mA/400mA + 800mA Boost + LDO, Charge Current Programmable Up to 1.5A from
Wall Adapter Input, 4mm × 6mm QFN-38 Package; "-1" Version Has 4.1V V_FLOAT
3675fa
38 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] ^● FAX: [phone] ^● www.linear.com
LT 0412 REV A • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2010