sc172mltrt Semtech Corporation, sc172mltrt Datasheet - Page 10

• Manufacturer Part Number: sc172mltrt
• Description: 2a Ecospeed Synchronous Step-down Regulator With Optional Ultrasonic Power Save
• Manufacturer: Semtech Corporation

Typical Characteristics
© 2010 Semtech Corporation
0.755
0.753
0.750
0.748
0.745
115
105
150
140
130
120
110
100
95
85
75
65
55
90
80
High Side Switch On-State Resistance vs
Low Side Switch On-State Resistance vs
-40
-40
-40
FB Voltage vs Temperature
-15
-15
-15
10
10
10
Temperature
Temperature
Temperature (°C)
Temperature (°C)
Temperature (°C)
Black:VDD=5.0V
Red: VDD=3.0V
35
35
35
60
60
60
Blue: VDD=3.0V
Black: VDD=5.0V
Blue: VDD=3.0V
Black: VDD=5.0V
85
85
85
110
110
110
135
135
135
50mV/Div, Channel 2:5V/Div,Channel 4:1A/Div,Time:10µs/Div)
50mV/Div,Channel 2:5V/Div,Channel 4:1A/Div, Time:10µs/Div)
PSAVE Mode Enabled, L
PSAVE Mode Enabled, L
Load Transient Test (
Load Transient Test (
OUT
V
V
OUT
IN
IN
=1.3µH, C
=5V, V
=5V, V
=1.3µH,C
OUT
OUT
OUT
OUT
=1.2V, I
=1.2V, I
=2x22µF,Channel 1:
=2x22µF, Channel 1:
OUT
OUT
= 0A to 2A,
= 2A to 0A,
SC172
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