LTC3675EUFF#PBF Linear Technology, LTC3675EUFF#PBF Datasheet - Page 33

• Manufacturer Part Number: LTC3675EUFF#PBF
• Description: IC, PMIC, 1A, QFN-44
• Manufacturer: Linear Technology

Specifications of LTC3675EUFF#PBF

• Supply Voltage: 5.5V
• No. Of Step-down Dc - Dc Converters: 4
• No. Of Ldo Regulators: 1
• Digital Ic Case Style: QFN
• No. Of Pins: 44
• No. Of Regulated Outputs: 7
• Operating Temperature Range: -40°C To +125°C
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TYPICAL APPLICATIONS
Li-Ion CELL
2.7V TO 4.2V
MICROPROCESSOR
5V, 1A
1μF
10μF
22μF
CONTROL
CONTROL
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
I
2
3.3V, 1A
C
25mA
1.2V
22μF
2.2μH
10μF
1μF
10μF
22μF
PUSH BUTTON
0.01μF
2.2μH
324k
649k
1.05M
200k
332k
105k
V
LDO_OUT
LDOFB
V
SW5
VOUT5
FB5
SWAB6
SWCD6
VOUT6
FB6
DV
SCL
SDA
IRQB
RSTB
WAKE
PBSTAT
EN1
EN2
EN3
EN4
ENBB
CT
ONB
IN
IN
CC
EXPOSED PAD
LTC3675
LED_OV
LED_FS
LED1
LED2
SW1
SW2
SW3
SW4
SW7
3675 F07
FB1
FB2
FB3
FB4
V
V
V
IN
IN
IN
2.2μH
2.2μH
2.2μH
2.2μH
10 LEDS
20k
UP TO
10μH
590k
324k
649k
655k
309k
475k
511k
511k
•
•
•
22μF
22μF
10μF
10μF
10μF
1.8V
500mA
1.6V
500mA
1.96M
42.2k
4.7μF
50V
10μF
10μF
10μF
LTC3675
33
1.2V
1A
2.5V
1A
3675f