LTC3675 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC3675' PDF : 36 Pages View PDF
TYPICAL APPLICATIONS
LTC3675
Li-Ion CELL
2.7V TO 4.2V
VIN
1μF
1.2V
25mA
10μF 324k
649k
LDO_OUT
LDOFB
VIN
10μF
2.2μH
1.2V
SW1
1A
324k
22μF
FB1
649k
10μF
VIN
VIN
10μF
2.2μH
5V, 1A
2.2μH
SW5
VOUT5
SW2
655k
22μF
2.5V
1A
22μF
22μF
22μF 1.05M
FB5
200k
LTC3675
2.2μH
3.3V, 1A
SWAB6
SWCD6
VOUT6
FB2
309k
VIN
2.2μH
SW3
590k
10μF
1.8V
500mA
10μF
10μF 332k
FB6
FB3
475k
105k
DVCC
I2C
1μF
CONTROL
SCL
SDA
2.2μH
SW4
511k
FB4
511k
1.6V
500mA
10μF
MICROPROCESSOR
CONTROL
0.01μF
IRQB
RSTB
WAKE
PBSTAT
EN1
EN2
EN3
EN4
ENBB
CT
SW7
LED1
LED2
ONB
PUSH BUTTON
LED_OV
LED_FS
EXPOSED PAD
3675 F07
10μH
UP TO
10 LEDS
•••
20k
10μF
4.7μF
50V
1.96M
42.2k
Figure 7. Buck Regulators with Sequenced Start-Up and a Single String of LEDs.
Buck Regulators Power-Up in the Sequence Buck1, Buck2 and Buck3
3675f
33
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