LTC3675EUFF#PBF Linear Technology, LTC3675EUFF#PBF Datasheet - Page 30

• 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

APPLICATIONS INFORMATION
LTC3675
Choosing the C
The C
parameters associated with the pushbutton. For a given
C
below. C
Programming the UVOT Register
The UV/OT warning byte (default 0000 0000) structure
is as below:
Programming the RSTB and IRQB Mask Registers
The RSTB mask register can be programmed by the user
at sub-address 0Ah and its format is as below.
If a bit is set to ‘0,’ then the corresponding regulator’s
PGOOD will pull RSTB low if a PGOOD fault were to occur.
The default for this register is FFh.
The IRQB mask register has the same bit format as the
RSTB mask register. The IRQB mask register is located at
sub-address 0Bh and its default contents are 00h.
PGOOD7 is used only when the LED driver is confi gured
as a high voltage boost regulator.
30
RESET_ALL
T
t
t
t
t
t
t
Unused
capacitor the timing parameters may be calculated as
ONB_LO
PBSTAT_PW
ONB_WAKE
WAKE_ON
ONB_HR
HR
BIT7
BIT7
T
= 100 × C
capacitor may be used to program the timing
T
is in units of μF .
= 5000 × C
= 500 × C
= 500 × C
PGOOD7
= 40000 × C
UV[2]
= 5000 × C
BIT6
BIT6
T
T
Capacitor
seconds
T
T
T
seconds
PGOOD6
ms
seconds
UV[1]
BIT5
BIT5
T
T
ms
ms
PGOOD5
UV[0]
BIT4
BIT4
PGOOD4
Unused
BIT3
BIT3
PGOOD3
Unused
BIT2
BIT2
PGOOD2
OT[1]
BIT1
BIT1
PGOOD1
OT[0]
BIT0
BIT0
3675f