SC121ULTRT Semtech, SC121ULTRT Datasheet - Page 13

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SC121ULTRT

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

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

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SC121ULTRT
Manufacturer:
SEMTECH/美国升特
Quantity:
20 000
Company:
Part Number:
SC121ULTRT
Quantity:
550
Typical Characteristics (continued)
Min. Start-up Voltage vs. Temperature (Any V
(100mA/div)
0.75
0.65
0.85
(10mV/div)
100
0.8
0.7
0.6
0.9
V
80
60
40
20
0
OUT
Startup Max Load Current vs. V
(5V/div)
0.5
-40
V
ripple
R
OUT
1
V
= 931k Ω , R
LX
= 3.3V, I
I
L
V
1
-20
OUT
= 3.3V, V
OUT
T
A
1.5
= 1mA
2
= 85°C
= 294k Ω , L = 4.7 μ H, C
0
IN
= 1.5V, I
PWM Operation
2
Temperature (°C)
Time = (400ns/div)
20
OUT
V
T
= 50mA
IN
A
2.5
= 25°C
(V)
T
A
40
= –40°C
FB
3
= 22pF
IN
60
(Any V
3.5
80
OUT
4
)
OUT
100
4.5
)
I
OUT
(100mV/div)
AC Coupled
(50mA/div)
= 40mA to
160
140
120
100
80
60
40
20
0
140mA
0.5
R
Startup Min Load Res. vs. V
V
1
OUT
= 931k Ω , R
V
1
OUT
= 3.3V, V
T
A
T
A
= 85°C
= –40°C
1.5
2
= 294k Ω , L = 4.7 μ H, C
IN
= 1.5V, T
T
A
= 25°C
Load Transient
2
Time = (100μs/div)
A
=25°C
V
IN
2.5
(V)
FB
3
IN
= 22pF
(Any V
3.5
OUT
SC121
4
)
4.5
13

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