LTC3675EUFF#PBF Linear Technology, LTC3675EUFF#PBF Datasheet - Page 20

• 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

LTC3675
OPERATION
20
(TIED TO EN1)
BUCKS 1–4
BUCKS 1–4
Figure 2b. Power-Up Using WAKE and Power-Down Due to Hard Reset (Sequenced Power-Up, Figure 7)
PBSTAT
PBSTAT
PBSTAT
BUCK 1
WAKE
WAKE
WAKE
(Hi-Z)
(Hi-Z)
(Hi-Z)
RSTB
RSTB
RSTB
ONB
ONB
ONB
EN1
Figure 2c. Power-Up Using an Enable Pin and Power-Down Due to I
Figure 2a. Power-Up Using WAKE (Sequenced Power-Up, Figure 7)
t
t
1
1
t
t
t
2
2
1
SEQUENCE UP
SEQUENCE UP
t
2
5 sec
(BUCK REGULATOR 1 IS
ENABLED VIA I
t
t
3
3
2
SEQUENCE DOWN
C, BEFORE t
(BUCK REGULATOR’S ENABLE IS NOT
REINFORCED BY I
t
3
3675 F02a
3
)
t
4
2
C BEFORE t
2
t
C Generated Hard Reset
4
3
)
5 sec
3675 F02c
t
5
3675 F02b
3675f