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SC185LEVB Datasheet(PDF) 9 Page - Semtech Corporation

No. de pieza SC185LEVB
Descripción Electrónicos  4A Synchronous Step-Down Regulator
PDF  18 Pages
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Fabricante Electrónico  SEMTECH [Semtech Corporation]
Página de inicio  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC185LEVB Datasheet(HTML) 9 Page - Semtech Corporation

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SC185
© 2010 Semtech Corp.
Typical Waveforms (continued)
Output Voltage Ripple (V
OUT=3.3V), PSAVE Mode
Output Voltage Ripple (V
OUT=3.3V) @ Full Load
Output Voltage Ripple (V
OUT=3.3V), forced PWM
Start Up (Enable) (V
OUT=1.5V), PSAVE Mode
Start Up (Enable) (V
OUT=1.5V), forced PWM
Start Up (Enable) (V
OUT=1.5V) @Full Load
Ch3
V
OUT
Output Voltage Ripple (V
IN=5.0V, VOUT=3.3V, 0A)-Auto
V
IN = 5.0V
I
OUT = 0A
Mode= Low
Ch1
V
LX
Ch2
I
LX
Ch4
V
IN
Ch3
V
OUT
Output Voltage Ripple (V
IN=5.0V, VOUT=3.3V, 0A)-PWM
V
IN = 5.0V
I
OUT = 0A
Mode= Hi
Ch1
V
LX
Ch2
I
LX
Ch4
V
IN
Ch3
V
OUT
Output Voltage Ripple (V
IN=5.0V, VOUT=3.3V, 4A)-All
V
IN = 5.0V
I
OUT = 4A
Ch1
V
LX
Ch2
I
LX
Ch4
V
IN
Start-up (V
IN=5.0V, VOUT=1.5V, 0A)-Auto
V
IN = 5.0V
I
OUT = 0A
Mode= Low
Ch1:V
EN
Ch2: I
OUT
Ch3: V
OUT
Ch4: PGood
Start-up (V
IN=5.0V, VOUT=1.5V, 0A)-PWM
V
IN = 5.0V
I
OUT = 0A
Mode= Hi
Ch1:V
EN
Ch2: I
OUT
Ch3: V
OUT
Ch4: PGood
Start-up (V
IN=5.0V, VOUT=1.5V, 4A)-All
V
IN = 5.0V
I
OUT = 4A
Ch1:V
EN
Ch2: I
OUT
Ch3: V
OUT
Ch4: PGood
Circuit Conditions: C
IN= 22uF/6.3V, COUT= 2 x 22uF/6.3V, CSS= 10nF. Unless otherwise noted, L= 1.0uH (TOKO: FDV0530S-1R0).
www.semtech.com
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