SC194BMLTRT Semtech, SC194BMLTRT Datasheet - Page 13

• Manufacturer Part Number: SC194BMLTRT
• Description: IC SYNC BUCK CONV 1A 10-MLP
• Manufacturer: Semtech
• Type: Step-Down (Buck)r

Specifications of SC194BMLTRT

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: Adjustable
• Current - Output: 1A
• Frequency - Switching: 1MHz
• Voltage - Input: 2.7 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-MLP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Other names: SC194BMLTR

© 2006 Semtech Corp.
POWER MANAGEMENT
Typical Characteristics (Cont.)
0.40
0.35
0.30
0.25
0.20
0.15
0.10
2.7
Condition V
Condition V
100% Duty Cycle Mode
P-Channel R
PWM Operation
3.2
Time (400ns/div)
IN
IN
Time (1μs/div)
=5V, l
= 3.8V, l
OUT
=50mA, V
3.7
OUT
= 1A, V
DSON
V
IN
OUT
vs. Input Voltage
(V)
OUT
4.2
=3.3V
= 3.3V
4.7
T
T
T
A
A
V
I
V
A
=-40
LX
=85
=25
V
I
V
LX
OUT
LX
OUT
LX
(500mA/div)
°
°
(200mA/div)
(5V/div)
°
C
C
(2V/div)
C
(20mV/div)
(50mV/div)
5.2
13
1050
1040
1030
1020
1010
1000
990
980
970
960
950
-50
Condition V
Condition V
V
Switching Frequency vs. Temperature
IN
=5.5V
-30
PSAVE Operation
PSAVE Start-UP
Time (400μs/div)
IN
Time (2μs/div)
IN
-10
=5V, l
=5V, l
V
IN
=3.6V
OUT
OUT
10
=50mA, V
=10mA, V
V
IN
=2.7V
30
T
J
(°C)
OUT
OUT
50
=3.3V
=3.3V
70
90
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SC194B
V
I
V
V
V
I
LX
OUT
IN
LX
EN
OUT
(500mA/div)
(200mA/div)
(5V/div)
(2V/div)
(50mV/div)
110
(2V/div)
130