SC174MLTRT Semtech, SC174MLTRT Datasheet - Page 9

• Manufacturer Part Number: SC174MLTRT
• Description: IC BUCK SYNC ADJ 4A MLPD-10
• Manufacturer: Semtech
• Series: EcoSpeed™r
• Type: Step-Down (Buck)r

Specifications of SC174MLTRT

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.75 ~ 5.23 V
• Current - Output: 4A
• Frequency - Switching: 200kHz ~ 1MHz
• Voltage - Input: 3 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-MLPD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Other names: SC174MLTR

Typical Characteristics
© 2010 Semtech Corporation
-0.5
-1.0
-1.5
-2.0
-2.5
-3.0
5.5
5.3
5.0
4.8
4.5
4.3
4.0
3.8
3.5
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
I
0.5
0.0
VIN
-50
-50
-50
Input Current In Shutdown vs Temperature
OCP Valley Threshold vs Temperature
I
BST
-25
-25
-25
Leakage Current vs Temperature
V
V
DD
DD
V
Blue: V
Black: V
0
0
=5.0V
=3.0V
0
IN
=5V
Temperature (°C)
Temperature (°C)
Temperature (°C)
V
V
IN
BST
25
25
LX
=5V
25
LX
=V
=GND
=V
IN
IN
50
50
50
75
75
75
100
100
100
125
125
125
Channel 1: 500mV/Div, Channel 4: 2A/Div, Time: 0.5ms/Div
Load Transient Test (
Load Transient Test (
Forced Continuous Conduction Mode, L
Forced Continuous Conduction Mode, L
Start up waveform (
C
C
2:5V/Div,Channel 4: 2A/Div, Time:10 s/Div)
2:5V/Div,Channel 4: 2A/Div, Time:10 s/Div)
OUT
OUT
=3x22 F, Channel 1: 50mV/Div, Channel
=3x22 F, Channel 1: 50mV/Div, Channel
V
V
IN
IN
V
=5V, V
=5V, V
IN
=5V, V
OUT
OUT
OUT
=1.2V, I
=1.2V, I
=1.2V, I
OUT
OUT
OUT
OUT
=1.3 H,
=1.3 H,
OUT
= 0A to 4A,
= 4A to 0A,
=4A,
SC174
)
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