sc120skevb Semtech Corporation, sc120skevb Datasheet - Page 9

• Manufacturer Part Number: sc120skevb
• Description: Low Voltage Synchronous Boost Regulator
• Manufacturer: Semtech Corporation

Typical Characteristics — V
4.05
3.95
3.85
4.05
3.95
3.85
4.1
3.9
4.1
3.9
100
4
4
90
80
70
60
50
40
30
20
10
0
0.6
0.1
0
R
R
R
Line Regulation — PSAVE Mode (V
1
1
1
V
= 931k Ω , R
= 931k Ω , R
= 931k Ω , R
IN
0.2
= 1.2V
50
1
0.5
Effi ciency vs. I
Load Regulation (V
2
2
2
100
= 402k Ω , L = 4.7 μ H, C
= 402k Ω , L = 4.7 μ H, C
1.4
= 402k Ω , L = 4.7 μ H, C
V
1
IN
V
= 3.2V
IN
T
A
= 1.2V
= –40°C
T
2
150
1.8
A
= 85°C
V
I
I
OUT
OUT
IN
V
5
= 2.4V
IN
200
2.2
(mA)
(mA)
OUT
(V)
FB
10
FB
FB
(V
= 2.2pF, T
= 2.2pF, I
= 2.2pF, T
250
2.6
OUT
20
OUT
OUT
T
V
A
= 4.0V)
= 4.0V)
IN
OUT
= 25°C
A
A
= 4.0V
= 3.2V
300
50
3
= 25
= 25
= 5mA
V
ο
OUT
ο
IN
100
C
C
= 2.4V
350
3.4
= 4.0V)
200
400
3.8
4.05
3.95
3.85
4.05
3.95
3.85
100
4.1
3.9
4.1
3.9
90
80
70
60
50
40
30
20
10
4
4
0
0.1
0
0.6
R
R
R
Line Regulation — PWM Mode (V
1
1
1
T
= 931k Ω , R
= 931k Ω , R
A
= 931k Ω , R
0.2
= –40°C
50
1
T
A
0.5
= 85°C
Effi ciency vs. I
Load Regulation (V
2
2
2
100
= 402k Ω , L = 4.7 μ H, C
= 402k Ω , L = 4.7 μ H, C
= 402k Ω , L = 4.7 μ H, C
1.4
1
T
A
T
A
= 85°C
2
= 85°C
150
1.8
T
T
T
I
I
A
A
OUT
OUT
A
= 25°C
= 25°C
5
V
= 85°C
T
IN
200
A
2.2
(mA)
(mA)
= –40°C
OUT
(V)
10
FB
FB
FB
(V
= 2.2pF, V
= 2.2pF, V
= 2.2pF, I
250
2.6
20
OUT
OUT
T
A
= –40°C
T
= 4.0V)
= 4.0V)
A
T
OUT
= –40°C
IN
IN
A
300
50
3
= 25°C
= 2.4V
= 2.4V
= 75mA
OUT
100
SC120
T
350
= 4.0V)
A
3.4
= 25°C
200
400
3.8
9