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ManualsBrandsLINEAR TECHNOLOGY ManualsPMICsPMIC - linear/switching voltage regulator Arbitrary function MSOP 16 EP
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LTC3104
7
3104f
Automatic Burst Mode Threshold
vs Supply Voltage
LDO Feedback Voltage
vs Temperature
LDO Output Voltage
vs V
IN(LDO)
Supply Voltage
LDO Output Voltage
vs Load Current
Minimum Input Voltage at
Maximum Duty Cycle vs Load
Current
Load Regulation
(Automatic Burst Mode Operation)
Load Regulation
(Automatic Burst Mode Operation)
Load Regulation
(Automatic Burst Mode Operation)
Maximum Duty Cycle
vs Input Voltage
TYPICAL PERFORMANCE CHARACTERISTICS
T
A
= 25°C unless otherwise noted
TEMPERATURE (°C)
–60
CHANGE IN V
FB
(%)
0.50
1.00
1.50
100
3104 G28
0
–0.50
0.25
0.75
1.25
–0.25
–0.75
–1.00
–20–40
200
60 80 120
40
140
NORMALIZED TO 25°C
INPUT VOLTAGE (V)
2
0.04
0.06
0.10
8 12
3104 G29
0.02
0
4 6
10 14 16
–0.02
–0.04
0.08
CHANGE IN LDO OUTPUT VOLTAGE (%)
NORMALIZED TO V
IN
= 3.3V
NOMINAL V
LDO
= 1.8V
I
LDO
= 5mA
V
IN
= V
INLDO
LDO LOAD CURRENT (mA)
0
CHANGE IN OUTPUT VOLTAGE (%)
0.01
0.02
0.03
6
10
3104 G30
0
–0.01
–0.02
2 4 8
0.04
0.05
0.06
NORMALIZED TO I
LDO
= 5mA
NOMINAL V
LDO
= 1.8V
V
IN
= V
INLDO
= 10V
LOAD CURRENT (mA)
0
5
INPUT VOLTAGE (V)
7
9
11
50
100
150 200
3104 G22
250
13
15
6
8
10
12
14
300
V
OUT
= 12V
V
OUT
= 9V
V
OUT
= 5V
I
LOAD
(mA)
0
–2.0
CHANGE IN V
OUT
(%)
–1.5
–1.0
–0.5
0
0.5
1.0
10 20 30 40
3104 G23
50
NORMALIZED AT I
LOAD
= 100mA
V
IN
= 10V
V
OUT
= 5V
C
FF
= 12pF
C
OUT
= 68µF
C
OUT
= 47µF
C
OUT
= 22µF
I
LOAD
(mA)
0
–2.0
CHANGE IN V
OUT
(%)
–1.5
–1.0
–0.5
0
20 40
60
80
3104 G24
0.5
1.0
10 30
50
70
NORMALIZED AT I
LOAD
= 100mA
V
IN
= 10V
V
OUT
= 3.3V
C
FF
= 12pF
C
OUT
= 68µF
C
OUT
= 47µF
C
OUT
= 33µF
I
LOAD
(mA)
0
CHANGE IN V
OUT
(%)
–1.5
–1.0
–0.5
60
100
3104 G25
–2.0
–2.5
–3.0
20 40 80
0
0.5
1.0
NORMALIZED AT I
LOAD
= 100mA
V
IN
= 10V
V
OUT
= 1.8V
C
FF
= 12pF
C
OUT
= 100µF
C
OUT
= 68µF
C
OUT
= 47µF
INPUT VOLTAGE (V)
2
85
90
100
5 7
3104 G26
80
75
3 4
6 8 9
70
65
95
MAXIMUM DUTY CYCLE (%)
I
OUT
= 1mA
I
OUT
= 300mA
INPUT VOLTAGE (V)
0
0
BURST THRESHOLD (I
LOAD
, mA)
20
60
80
100
140
4
8
10
3104 G27
40
160
120
2 6
12
14
16
V
OUT
= 1.2V
V
OUT
= 1.8V
V
OUT
= 2.5V
V
OUT
= 3.3V
V
OUT
= 5V