SC198MLTRT Semtech, SC198MLTRT Datasheet - Page 12

• Manufacturer Part Number: SC198MLTRT
• Description: IC DUAL DC-DC BUCK CONV 20-MLPQ
• Manufacturer: Semtech
• Type: Step-Down (Buck)r

Specifications of SC198MLTRT

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: Programmable
• Current - Output: 600mA
• Frequency - Switching: 1MHz
• Voltage - Input: 2.7 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-MLPQ
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Other names: SC198MLTR

POWER MANAGEMENT
Typical Characteristics
© 2007 Semtech Corp.
-0.05
-0.15
0.15
0.05
-0.1
-0.2
0.2
0.1
0
100
100
70
90
60
50
40
30
20
10
90
80
50
40
30
20
10
80
70
60
2.7
0
0
0.001
0.001
V
OUT
V
OUT
Line Regulation at 300mA
3.1
Effi ciency vs. Load @ 2.7V
Effi ciency vs. Load @ 5.5V
= 1V PSAVE
= 1V PSAVE
V
3.5
OUT
= 1V
0.01
0.01
V
OUT
3.9
Input (V)
= 1V PWM
V
OUT
V
Load (A)
Load (A)
V
OUT
= 1.8V PWM
OUT
= 1V PWM
= 1.8V
4.3
V
NOT RECOMMENDED FOR NEW DESIGN
OUT
= 1.8V PWM
V
OUT
0.1
0.1
4.7
= 1.8V PSAVE
V
OUT
OUT
IN
IN
= 1.8V PSAVE
ENA=ENB=VIN
ENA=ENB=VIN
5.1
5.5
1
1
12
-2.0
-4.0
-6.0
-8.0
4.0
2.0
0.0
-0.2
-0.4
-0.6
-0.8
100
0.8
0.6
0.4
0.2
80
70
90
60
50
40
30
20
10
-1
Oscillator Frequency vs. Input Voltage
2.7
1
0
0
0.001
0.001
V
Load Regulation at 3.6V
OUT
Effi ciency vs. Load @ 3.6V
3.1
25°C
= 1V PSAVE
3.5
0.01
0.01
V
OUT
85°C
3.9
Load (A)
Load (A)
Input (V)
= 1V PWM
V
OUT
4.3
= 1.8V PWM
V
-40°C
OUT
V
0.1
0.1
OUT
4.7
IN
= 1.8V PSAVE
V
= 1V
www.semtech.com
OUT
(PWM)
IN
ENA=ENB=VIN
= 1.8V
SC198
5.1
5.5
1
1