SC194AMLTRT Semtech, SC194AMLTRT Datasheet - Page 12

• Manufacturer Part Number: SC194AMLTRT
• Description: IC SYNC BUCK CONV 1A 10-MLP
• Manufacturer: Semtech
• Type: Step-Down (Buck)r

Specifications of SC194AMLTRT

• 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: SC194AMLTR

© 2006 Semtech Corp.
POWER MANAGEMENT
Typical Characteristics (Cont.)
1.8090
1.8085
1.8080
1.8075
1.8070
1.8065
1.8060
1.8055
1.8050
1.8045
1.8040
1.84
1.83
1.82
1.81
1.80
5.5
4.5
3.5
2.5
6
5
4
3
-50 -40 -30 -20 -10
2.5
PWM Mode
Quiescent Current vs. Input Voltage
3.0
3
V
OUT
I
OUT
V
=1.8V PWM
3.5
=500mA
OUT
3.5
V
vs. Temperature
OUT
V
0
OUT
=1.8V, PWM
4.0
10
4
T
V
A
vs. V
IN
(
V
V
°
OUT
IN
20
C)
(V)
I
OUT
(V)
=1.8V PSAVE
4.5
=50mA
30
4.5
IN
T
A
40
= 85 °C
5.0
50
5
60
T
5.5
A
= 25 °C
5.5
70
T
A
= -40 °C
80
6.0
90
6
12
0.15
0.10
0.40
0.35
0.30
0.25
0.20
1.8015
1.8010
1.8005
1.8000
1.7995
1.7990
1.7985
1.7980
1.7975
1.8025
1.8020
2.7
22
21
20
19
18
16
15
14
13
12
17
2.5
0
PSAVE Mode
Quiescent Current vs. Input Voltage
P-Channel R
3
3.2
0.2
V
OUT
3.5
vs. I
3.7
0.4
DSON
OUT
V
4
, V
vs. Input Voltage
T
IN
A
(V)
= 85 °C
I
V
OUT
T
IN
0.6
OUT
A
T
A
4.2
(V)
= 25 °C
(A)
= -40 °C
=1.8V, PWM
4.5
0.8
PRELIMINARY
4.7
5
T
T
T
A
A
A
www.semtech.com
= 85 °C
= 25 °C
= 40 °C
SC194A
1
5.5
5.2
1.2
6