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SC2447TSTRT Datasheet(PDF) 8 Page - Semtech Corporation

No. de pieza SC2447TSTRT
Descripción Electrónicos  Dual-Phase, Single or Dual Output Synchronous Step-Down Controller
PDF  26 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrónico  SEMTECH [Semtech Corporation]
Página de inicio  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC2447TSTRT Datasheet(HTML) 8 Page - Semtech Corporation

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© 2006 Semtech Corp.
www.semtech.com
POWER MANAGEMENT
SC2447
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Typical Application Circuit Performance
V
OUT2
20mV/div
Output Voltage Ripple (V
OUT2)
2
µs/DIV
I
OUT2=25A
I
OUT2
10A/div
V
SW2
10V/div
V
OUT2
0.1V/div
Load Transient Response (V
OUT2)
200
µs/div
I
OUT2=20A to 25A
I
OUT2
5A/div
V
OUT2
0.5V/div
Overload Hiccup (V
OUT2)
50ms/div
V
SS2/EN2
2V/div
I
OUT2
20A/div
Circuit Conditions: 2-Ouput Configuration, V
IN = 12V, LOUT=0.4uH for VOUT= 1.2V, LOUT=1uH for VOUT= 2.5V, 3.3V, and 5.0V, ROSC = 51.1kΩ, and TA = 25°C.
Circuit Conditions: 2-Output Configuration as in Figure 16. V
IN = 12V, VOUT1 = 2.5V, VOUT2 = 1.2V, ROSC = 51.1kΩ, SYNC = 0, and TA = 25°C.
V
OUT1
20mV/div
Output Voltage Ripple
V
OUT1 & VOUT2
1
µs/DIV
I
OUT1=20A
I
OUT2=25A
V
SW1
10V/div
V
SW2
10V/div
V
OUT2
20mV/div



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