LTC3675EUFF#PBF Linear Technology, LTC3675EUFF#PBF Datasheet - Page 5

• 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

ELECTRICAL CHARACTERISTICS
junction temperature range, otherwise specifi cations are at T
SYMBOL
V
V
V
I
D
R
R
I
I
R
t
Buck Regulators Combined
I
I
I
1A Boost Regulator
I
V
I
V
V
V
I
DC
R
R
I
I
R
t
1A Buck-Boost Regulator
I
V
V
I
I
I
V
V
V
FB3,4
LEAKP3,4
LEAKN3,4
SS3,4
FWD1+2
FWD2+3
FWD3+4
VIN5
FWD5
FB5
LEAKP
LEAKN
SS5
VIN6
FWD6
PEAK6
ZERO6
FB3,4(HIGH)
FB3,4(LOW)
LSB3,4
OUT5(MAX)
FB5(HIGH)
FB5(LOW)
LSB5
OUT6(LOW)
OUT6(HIGH)
FB6(HIGH)
FB6(LOW)
LSB6
MAX3,4
PMOS3,4
NMOS3,4
SWPD3,4
PMOS5
NMOS5
OUTPD5
MAX5
PARAMETER
Feedback Regulation Voltage
Feedback Regulation Voltage
FB3, FB4 Regulation Voltage Step Size
Feedback Leakage Current
Maximum Duty Cycle
PMOS On-Resistance
NMOS On-Resistance
PMOS Leakage Current
NMOS Leakage Current
Output Pull-Down Resistance in Shutdown
Soft-Start Time
PMOS Current Limit
PMOS Current Limit
PMOS Current Limit
PWM Mode
Burst Mode Operation
Maximum Regulated Output Voltage
Forward Current Limit
Feedback Regulation Voltage
Feedback Regulation Voltage
FB5 Regulation Voltage Step Size
Feedback Leakage Current
Maximum Duty Cycle
PMOS On-Resistance
NMOS On-Resistance
PMOS Switch Leakage Current
NMOS Switch Leakage Current
Output Pull-Down Resistance in Shutdown
Soft-Start Time
PWM Mode
Burst Mode Operation
Minimum Regulated Output Voltage
Maximum Regulated Output Voltage
Forward Current Limit
Peak Current Limit
Zero Current Limit
Feedback Regulation Voltage
Feedback Regulation Voltage
FB6 Regulation Voltage Step Size
CONDITIONS
Pulse-Skipping Mode Full-Scale (1,1,1,1)
Pulse-Skipping Mode Full-Scale (0,0,0,0)
V
V
I
I
EN3 = EN4 = 0
EN3 = EN4 = 0
EN3 = EN4 = 0 (I
FB2 = V
FB3 = V
FB4 = V
V
V
(Note 6)
PWM Mode Full-Scale (1,1,1,1)
PWM Mode Full-Scale (0,0,0,0)
V
NMOS Switch
Boost Regulator Off
V
V
PWM Mode (Note 6)
Burst Mode Operation (Note 6)
Burst Mode Operation
PWM Mode Full-Scale (1,1,1,1)
PWM Mode Full-Scale (0,0,0,0)
SW3
SW3
FB3
FB3
FB5
FB5
FB5
FB6
FB6
The
= V
= V
= I
= I
= 0.85V (Notes 4, 5)
= 0.85V (Notes 4, 5)
= 0.85V
= 0.85V (Note 4, 5)
= 0.85V(Note 4, 5)
A
IN
IN
IN
SW4
SW4
= 25°C. V
FB4
FB4
l
(Note 6)
(Note 6)
(Note 6)
denotes the specifi cations which apply over the full operating
= 0.85V
= 0V
= 100mA
= –100mA
2
C Bit Set)
IN
= 3.6V.
l
l
l
l
l
l
l
5.35
5.25
MIN
780
405
–50
100
780
405
–50
200
–30
780
405
2.5
2.1
–1
–1
–2
–2
5.55
3.15
2.65
5.65
2.65
TYP
800
425
500
510
500
150
800
425
260
275
500
220
275
800
425
5.6
2.4
25
10
35
25
90
10
20
25
4
0
LTC3675
MAX
5.75
820
445
300
820
445
400
350
820
445
3.9
2.8
3.2
50
60
50
40
30
1
1
2
2
UNITS
5
3675f
mΩ
mΩ
mΩ
mΩ
mV
mV
mV
mV
mV
mV
mA
mA
mV
mV
mV
kΩ
kΩ
nA
μA
μA
μA
μA
nA
μA
μA
μA
μA
μs
μs
%
%
A
A
A
V
A
V
V
A