SC173MLTRT Semtech, SC173MLTRT Datasheet - Page 9

• Manufacturer Part Number: SC173MLTRT
• Description: IC BUCK SYNC ADJ 3A MLPD-10
• Manufacturer: Semtech
• Series: EcoSpeed™r
• Type: Step-Down (Buck)r

Specifications of SC173MLTRT

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.75 ~ 5.23 V
• Current - Output: 3A
• 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: SC173MLTR

Typical Characteristics
© 2010 Semtech Corporation
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
-0.5
-1.0
-1.5
-2.0
-2.5
-3.0
I
0.5
0.0
VIN
0.755
0.753
0.750
0.748
0.745
-50
-50
Input Current In Shutdown vs Temperature
I
BST
-40
-25
-25
Leakage Current vs Temperature
FB Voltage vs Temperature
-15
V
Blue: V
Black: V
0
0
IN
Temperature (°C)
=5V
Temperature (°C)
10
V
V
IN
BST
Temperature (°C)
25
Black:VDD=5.0V
Red: VDD=3.0V
LX
=5V
25
LX
=V
=GND
35
=V
IN
IN
50
50
60
75
75
85
100
100
110
125
125
135
Channel 1: 500mV/Div, Channel 4: 1A/Div, Time: 1ms/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: 1A/Div, Time:10 s/Div)
2:5V/Div,Channel 4: 1A/Div, Time:10 s/Div)
OUT
OUT
=2x22 F, Channel 1: 100mV/Div, Channel
=2x22 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 3A,
= 3A to 0A,
=3A,
SC173
)
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