LTC3675EUFF#PBF Linear Technology, LTC3675EUFF#PBF Datasheet - Page 9

• 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 PERFORMANCE CHARACTERISTICS
AC-COUPLED
100mV/DIV
200mA/DIV
INDUCTOR
CURRENT
1.25
1.24
1.23
1.22
1.21
1.20
1.19
1.18
1.17
1.16
1.15
100
90
80
70
60
50
40
30
20
10
V
0
–55
OUT1
0mA
1
1A Buck Regulators,
V
500mA Buck Regulators,
Effi ciency vs Load
PULSE-SKIPPING MODE
LOAD = 500mA
OUT1
–35
1A Buck Regulators, Transient
Response (Pulse-Skipping Mode)
LOAD STEP = 100mA TO 700mA
V
IN
= 3.6V, V
–15
vs Temperature
V
V
V
V
V
V
V
IN
V
IN
IN
IN
IN
IN
IN
LOAD CURRENT (mA)
TEMPERATURE (°C)
IN
= 3.6V
10
5
= 2.7V Burst Mode OPERATION
= 3.6V Burst Mode OPERATION
= 5.5V Burst Mode OPERATION
= 2.7V PULSE SKIPPING-MODE
= 3.6V PULSE SKIPPING-MODE
= 5.5V PULSE SKIPPING-MODE
= 2.7V
OUT1
V
IN
25
= 5.5V
= 1.2V
50μs/DIV
45
100
65
V
OUT3
85 105 125
= 1.8V
3675 G13
3675 G16
1000
3675 G10
AC-COUPLED
100mV/DIV
200mA/DIV
INDUCTOR
CURRENT
1.830
1.825
1.820
1.815
1.810
1.805
1.800
1.795
1.790
1.785
1.780
1.775
1.770
3.6
3.4
3.2
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
V
–55
OUT1
0mA
1
1A Buck Regulators, PMOS
Current Limit vs Temperature
500mA Buck Regulators,
Load Regulation
PULSE-SKIPPING MODE
–35
1A Buck Regulators, Transient
Response (Burst Mode Operation)
LOAD STEP = 100mA TO 700mA
V
IN
–15
= 3.6V, V
LOAD CURRENT (mA)
TEMPERATURE (°C)
10
5
V
V
OUT1
IN
IN
25
= 2.7V
= 3.6V
= 1.2V
50μs/DIV
45
V
100
V
65
V
IN
IN
IN
V
= 3.6V
= 5.5V
IN
= 5.5V
85 105 125
= 2.7V
T
3675 G14
3675 G17
A
1000
= 25°C, unless otherwise noted.
3675 G11
500mV/DIV
500mA/DIV
INDUCTOR
CURRENT
1.830
1.825
1.820
1.815
1.810
1.805
1.800
1.795
1.790
1.785
1.780
1.775
1.770
2V/DIV
0.60
0.55
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
V
OUT1
EN1
0
–55
2.7
1A Buck Regulators, Switch
R
500mA Buck Regulators,
Line Regulation
NMOS R
PULSE-SKIPPING MODE
1A Buck Regulators, No Load
Start-Up Transient
(Pulse-Skipping Mode)
DSON
–35
V
IN
3.1
= 3.6V
–15
PMOS R
DSON
vs Temperature
3.5
TEMPERATURE (°C)
LOAD = 250mA
, V
5
IN
DSON
LOAD = 50mA
3.9
PMOS R
= 2.7V
25
V
NMOS R
25μs/DIV
IN
LTC3675
, V
(V)
IN
45
4.3
DSON
= 5.5V
DSON
65
4.7
, V
, V
IN
85 105 125
= 2.7V
IN
5.1
= 5.5V
3675 G18
3675 G15
9
3675 G12
3675f
5.5