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SC121ULTRT

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P23
SC121
7
Typical Characteristics — V
OUT
= 3.3V
0.1 0.2 0.5 1 2 5 10 20 50 100 200 500
0
10
20
30
40
50
60
70
80
90
100
I
OUT
(mA)
Efficiency (%)
FB grounded, L = 4.7
μ
H, V
IN
= 2V
0.1 0.2 0.5 1 2 5 10 20 50 100 200 500
0
10
20
30
40
50
60
70
80
90
100
I
OUT
(mA)
Efficiency (%)
FB grounded, L = 4.7
μ
H, T
A
= 25
ο
C
V
IN
= 2.0V
V
IN
= 1.0V
V
IN
= 2.95V
T
A
= 25°C
T
A
= 85°C
T
A
= –40°C
0 50 100 150 200 250 300 350 400 450 500
3.2
3.22
3.24
3.26
3.28
3.3
3.32
3.34
I
OUT
(mA)
V
OUT
(V)
FB grounded, L = 4.7
μ
H, V
IN
= 2V
0 50 100 150 200 250 300 350 400 450 500
3.2
3.22
3.24
3.26
3.28
3.3
3.32
3.34
I
OUT
(mA)
V
OUT
(V)
FB grounded, L = 4.7
μ
H, T
A
= 25
ο
C
V
IN
= 2.0V
V
IN
= 2.95V
V
IN
= 1.0V
T
A
= 25°C
T
A
= 85°C
T
A
= –40°C
0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3
3.2
3.22
3.24
3.26
3.28
3.3
3.32
3.34
V
IN
(V)
V
OUT
(V)
FB grounded, L = 4.7
μ
H, I
OUT
= 90mA
0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3
3.2
3.22
3.24
3.26
3.28
3.3
3.32
3.34
V
IN
(V)
V
OUT
(V)
FB grounded, L = 4.7
μ
H, I
OUT
= 1mA
T
A
= 25°C
T
A
= 85°C
T
A
= –40°C
T
A
= 25°C
T
A
= 85°C
T
A
= –40°C
E ciency vs. I
OUT
(V
OUT
= 3.3V)
E ciency vs. I
OUT
(V
OUT
= 3.3V)
Load Regulation (V
OUT
= 3.3V)
Load Regulation (V
OUT
= 3.3V)
Line Regulation — High Load (V
OUT
= 3.3V)
Line Regulation — Low Load (V
OUT
= 3.3V)
SC121
8
Typical Characteristics — V
OUT
= 3.3V (continued)
-50 -25 0 25 50 75 100
3.2
3.22
3.24
3.26
3.28
3.3
3.32
3.34
Junction Temperature (
o
C)
V
OUT
(V)
FB grounded, L = 4.7
μ
H, I
OUT
= 90mA
-50 -25 0 25 50 75 100
3.2
3.22
3.24
3.26
3.28
3.3
3.32
3.34
Junction Temperature (
o
C)
V
OUT
(V)
FB grounded, L = 4.7
μ
H, I
OUT
= 1mA
V
IN
= 2.0V
V
IN
= 2.95V
V
IN
= 1.0V
V
IN
= 2.0V
V
IN
= 2.95V
V
IN
= 1.0V
Temperature Reg. — High Load (V
OUT
= 3.3V)
Temperature Reg. — Low Load (V
OUT
= 3.3V)
0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3
0
50
100
150
200
250
300
350
400
450
500
V
IN
(V)
I
OUT
(mA)
FB grounded, L = 4.7
μ
H
Max. I
OUT
vs. V
IN
(V
OUT
= 3.3V)
T
A
= 85°C
T
A
= –40°C
T
A
= 25°C
SC121
9
0.1 0.2 0.5 1 2 5 10 20 50 100 200 500
0
10
20
30
40
50
60
70
80
90
100
I
OUT
(mA)
Efficiency (%)
R
1
= 976k
Ω
, R
2
= 412k
Ω
, L = 4.7
μ
H, C
FB
= 22pF, T
A
= 25
ο
C
Typical Characteristics — V
OUT
= 4.0V
0.1 0.2 0.5 1 2 5 10 20 50 100 200 500
0
10
20
30
40
50
60
70
80
90
100
I
OUT
(mA)
Efficiency (%)
R
1
= 976k
Ω
, R
2
= 412k
Ω
, L = 4.7
μ
H, C
FB
= 22pF, V
IN
= 2.4V
V
IN
= 2.4V
V
IN
= 1.2V
V
IN
= 3.6V
T
A
= 25°C
T
A
= 85°C
T
A
= –40°C
0 50 100 150 200 250 300 350 400 450 500 550
3.85
3.9
3.95
4
4.05
4.1
I
OUT
(mA)
V
OUT
(V)
R
1
= 976k
Ω
, R
2
= 412k
Ω
, L = 4.7
μ
H, C
FB
= 22pF, T
A
= 25
ο
C
0 50 100 150 200 250 300 350 400 450 500 550
3.85
3.9
3.95
4
4.05
4.1
I
OUT
(mA)
V
OUT
(V)
R
1
= 976k
Ω
, R
2
= 412k
Ω
, L = 4.7
μ
H, C
FB
= 22pF, V
IN
= 2.4V
V
IN
= 3.6V
V
IN
= 2.4V
V
IN
= 1.2V
T
A
= 25°C
T
A
= 85°C
T
A
= –40°C
0.8 1.2 1.6 2 2.4 2.8 3.2 3.6
3.85
3.9
3.95
4
4.05
4.1
V
IN
(V)
V
OUT
(V)
R
1
= 976k
Ω
, R
2
= 412k
Ω
, L = 4.7
μ
H, C
FB
= 22pF, I
OUT
= 1mA
0.8 1.2 1.6 2 2.4 2.8 3.2 3.6
3.85
3.9
3.95
4
4.05
4.1
V
IN
(V)
V
OUT
(V)
R
1
= 976k
Ω
, R
2
= 412k
Ω
, L = 4.7
μ
H, C
FB
= 22pF, I
OUT
= 110mA
T
A
= 25°C
T
A
= 85°C
T
A
= –40°C
T
A
= 25°C
T
A
= 85°C
T
A
= –40°C
E ciency vs. I
OUT
(V
OUT
= 4.0V)
E ciency vs. I
OUT
(V
OUT
= 4.0V)
Load Regulation (V
OUT
= 4.0V)
Load Regulation (V
OUT
= 4.0V)
Line Regulation — Low Load (V
OUT
= 4.0V)
Line Regulation — High Load (V
OUT
= 4.0V)
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P23

SC121ULTRT

Mfr. #:
Buy SC121ULTRT
Manufacturer:
Semtech
Description:
Switching Voltage Regulators LOW VOLTAGE BOOST CONVRTR_PWM
Lifecycle:
New from this manufacturer.
Delivery:
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Payment:
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