SC121ULTRT Semtech, SC121ULTRT Datasheet - Page 5

• Manufacturer Part Number: SC121ULTRT
• Description: IC BOOST SYNC 1.2A MLPD-6
• Manufacturer: Semtech
• Type: Step-Up (Boost)r

Specifications of SC121ULTRT

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 3.3V, 1.8 ~ 5 V
• Current - Output: 1.2A
• Frequency - Switching: 1.2MHz
• Voltage - Input: 0.7 ~ 4.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 6-MLPD-UT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Other names: SC121ULTRTTR

Typical Characteristics — V
1.82
1.78
1.76
1.82
1.78
1.76
1.8
1.8
100
90
80
70
60
50
40
30
20
10
0
0.6
0.1
0
R
R
R
1
V
1
1
T
Line Regulation — Low Load (V
IN
= 499k Ω , R
= 499k Ω , R
= 499k Ω , R
A
0.2
= 0.8V
= 25°C
0.7
50
0.8
0.5
Effi ciency vs. I
Load Regulation (V
2
2
2
= 1M Ω , L = 4.7 μ H, C
= 1M Ω , L = 4.7 μ H, C
= 1M Ω , L = 4.7 μ H, C
1
0.9
T
A
T
2
A
= –40°C
100
= 85°C
1
I
I
OUT
OUT
V
V
IN
IN
5
1.1
= 1.6V
(mA)
(mA)
OUT
(V)
10
(V
150
FB
FB
FB
1.2
V
IN
= 22pF, T
= 22pF, I
= 22pF, T
OUT
OUT
OUT
= 0.8V
V
20
IN
1.3
= 1.2V
= 1.8V)
= 1.8V)
= 1.8V
OUT
OUT
50
A
A
200
1.4
= 25
= 25
= 1mA
= 1.8V)
V
100 200
V
ο
IN
ο
IN
C
C
= 1.6V
1.5
= 1.2V
250
1.6
1.82
1.78
1.76
1.82
1.78
1.76
1.8
100
1.8
90
80
70
60
50
40
30
20
10
0
0.6
0.1
0
R
R
R
Line Regulation — High Load (V
1
1
1
= 499k Ω , R
= 499k Ω , R
= 499k Ω , R
0.2
0.7
T
A
= 25°C
0.8
0.5
50
Effi ciency vs. I
Load Regulation (V
T
A
2
2
= 85°C
2
T
A
= 1M Ω , L = 4.7 μ H, C
= 1M Ω , L = 4.7 μ H, C
= 1M Ω , L = 4.7 μ H, C
1
= 85°C
0.9
T
A
T
T
A
= –40°C
A
= –40°C
2
= 85°C
100
1
I
I
OUT
OUT
T
V
A
= –40°C
IN
5
1.1
(mA)
(mA)
OUT
(V)
10
(V
150
FB
FB
FB
1.2
= 22pF, I
= 22pF, V
= 22pF, V
OUT
OUT
20
1.3
= 1.8V)
= 1.8V)
OUT
T
OUT
50
A
IN
IN
200
= 85°C
1.4
= 1.2V
= 1.2V
T
= 50mA
= 1.8V)
A
SC121
= 25°C
T
100 200
T
A
A
= 25°C
= –40°C
1.5
250
1.6
5