SC120 SEMTECH [Semtech Corporation], SC120 Datasheet - Page 7

• Manufacturer Part Number: SC120
• Description: Low Voltage Synchronous Boost Converter
• Manufacturer: SEMTECH [Semtech Corporation]

Typical Characteristics (continued)
3.34
3.32
3.28
3.26
3.24
3.22
1.85
1.84
1.83
1.82
1.81
1.79
1.78
1.77
4.05
3.95
3.85
3.3
3.2
3.9
1.8
4
0.5
0.5
0.7
FB grounded, L = 4.7 μ H, I
R1 = 1.37M Ω , R2 = 590k Ω , L = 4.7 μ H, I
R1 = 499k Ω , R2 = 1M Ω , L = 4.7 μ H, I
Line Regulation — PSAVE Mode (V
Line Regulation — PSAVE Mode (V
Line Regulation — PSAVE Mode (V
0.75
T
0.8
A
1
= –40°C
T
A
T
= 85°C
1
A
= –40°C
0.9
1.5
1.25
T
1
OUT
A
T
1.5
= 25°C
T
A
A
= –40°C
= 4mA
= 85°C
2
V
V
V
IN
1.75
IN
IN
1.1
(V)
(V)
(V)
OUT
OUT
2.5
= 4mA
2
T
T
= 4mA
A
1.2
A
= 85°C
= 25°C
2.25
3
1.3
2.5
OUT
OUT
OUT
T
A
3.5
= 25°C
1.4
= 1.8V)
= 3.3V)
= 4.0V)
2.75
PRELIMINARY
1.5
3
4
3.34
3.32
3.28
3.26
3.24
3.22
1.85
1.84
1.83
1.82
1.81
1.79
1.78
1.77
4.05
3.95
3.85
1.8
3.3
3.2
3.9
4
0.5
0.5
0.7
R1 = 499k Ω , R2 = 1M Ω , L = 4.7 μ H, I
FB grounded, L = 4.7 μ H, I
R1 = 1.37M Ω , R2 = 590k Ω , L = 4.7 μ H, I
Line Regulation — PWM Mode (V
Line Regulation — PWM Mode (V
T
Line Regulation — PWM Mode (V
T
A
A
= 25°C
0.75
= –40°C
T
A
T
0.8
T
= 85°C
A
A
1
= –40°C
= –40°C
1
T
A
= 25°C
0.9
1.5
T
1.25
A
= 85°C
1
OUT
1.5
= 75mA
2
T
T
A
A
= 25°C
V
V
= 85°C
V
IN
1.75
IN
IN
1.1
(V)
(V)
(V)
OUT
OUT
2.5
= 45mA
2
= 75mA
1.2
2.25
3
1.3
2.5
OUT
OUT
OUT
3.5
SC120
= 1.8V)
= 3.3V)
= 4.0V)
1.4
2.75
3
1.5
4
7