SC418ULTRT Semtech, SC418ULTRT Datasheet - Page 8

• Manufacturer Part Number: SC418ULTRT
• Description: IC BUCK SYNC ADJ 20MLPQ
• Manufacturer: Semtech
• Series: EcoSpeed™, SmartDrive™r
• Type: Step-Down (Buck)r

Specifications of SC418ULTRT

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.5 ~ 5.5 V
• Frequency - Switching: 200kHz ~ 1MHz
• Voltage - Input: 3 ~ 28 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-MLPQ
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Power - Output: -
• Other names: SC418ULTRTTR

Typical Characteristics
Characteristics in this section are based on using the Detailed Application Circuit.
Efficiency vs. Load — Ultrasonic Power-save Mode
100
100
100
90
80
70
60
50
80
20
90
80
70
60
60
40
Efficiency vs. Load — Forced Continuous Mode
0.01
0.01
Internally biased at V
0
Internally biased at V
Externally biased at VDDA = VDDP = 5V, V
85%
Efficiency vs. Load — Power-save Mode
1
2
LDO
LDO
3
0.1
0.1
= 5V, V
= 5V, V
4
IN
IN
I
= 12V, V
OUT
= 12V, V
I
I
OUT
OUT
5
(A)
(A)
(A)
IN
OUT
OUT
= 12V, V
6
= 1.050V
= 1.050V, R
1
1
7
OUT
= 1.050V
PSV
8
= 115kΩ
9
10
10
10
1.100
1.075
1.050
1.025
1.000
0.975
0.950
0.975
1.100
1.075
1.050
1.025
1.000
0.975
0.950
1.100
1.075
1.050
1.025
1.000
0.950
0
0
0
Externally biased at VDDA = VDDP = 5V, V
Internally biased at V
Internally biased at V
V
OUT
V
OUT
1
1
1
V
vs. Load — Ultrasonic Power-save Mode
OUT
vs. Load — Forced Continuous Mode
2
2
2
vs. Load — Power-save Mode
LDO
LDO
3
3
3
= 5V, V
= 5V, V
4
4
4
IN
IN
I
= 12V, V
OUT
I
I
= 12V, V
OUT
OUT
5
5
5
(A)
(A)
(A)
OUT
IN
OUT
6
6
6
= 12V, V
= 1.050V, R
= 1.050V
7
7
7
OUT
PSV
= 1.050V
8
8
8
= 115kΩ
SC418
9
9
9
10
10
10
8