SC1404ITSTR Semtech, SC1404ITSTR Datasheet - Page 13

• Manufacturer Part Number: SC1404ITSTR
• Description: IC, PWM CONTROLLER, 28-TSSOP
• Manufacturer: Semtech

Specifications of SC1404ITSTR

• Primary Input Voltage: 15V
• No. Of Outputs: 3
• Output Voltage: 5.25V
• Output Current: 1A
• No. Of Pins: 28
• Operating Temperature Range: -40°C To +85°C
• Peak Reflow Compatible (260 C): No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Applications Information
Measured Control-to-Output gain & phase response (up to 100kHz)
is plotted below.
POWER MANAGEMENT
Applications Information
2004 Semtech Corp.
-10
-20
-30
-40
-50
1.00E+02
50
40
30
20
10
0
-100
-150
-200
200
150
100
-50
1.00E+02
50
0
1.00E+03
1.00E+03
f (Hz)
f (Hz)
1.00E+04
1.00E+04
1.00E+05
1.00E+05
13
Single-pole compensation is achieved using a 100pF capacitor
from the COMP pin to ground. The simulated feedback gain &
phase response (up to 100kHz) is plotted below.
Measured feedback gain & phase responses (up to 100kHz) is
plotted below.
-100
-100
-150
-200
-10
-15
1.00E+02
200
150
100
25
20
15
10
-5
-10
-20
-30
-40
-50
-60
-70
-80
-90
-50
1.00E+02
1.00E+02
5
0
50
0
0
1.00E+03
1.00E+03
1.00E+03
f (Hz)
f (Hz)
f (Hz)
1.00E+04
1.00E+04
1.00E+04
SC1404
www.semtech.com
1.00E+05
1.00E+05
1.00E+05