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SC185LEVB Datasheet(PDF) 11 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) 11 Page - Semtech Corporation

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SC185
© 2010 Semtech Corp.
Transient Response (V
OUT=1.5V, ISTEP=2A)
Transient Response (V
OUT=3.3V, ISTEP=2A)
Transient Response (V
IN=
5.0V, V
OUT=
3.3V)-PWM@CCDL
V
IN = 5.0V
I
OUT = 1A to 3A to 1A
Mode= Hi
Ch3
V
OUT
Ch2
I
OUT
Typical Waveforms (continued)
Output Short Circuit (V
OUT=1.5V)
Recovery from OCP (V
OUT=1.5V)
Output Short-Circuit (V
IN=
5.0V, V
OUT=
1.5V)-PWM
V
IN = 5.0V
Mode= Hi
Ch3
V
OUT
Ch1
V
LX
Ch2
I
LX
Ch4
PGood
Ch3
V
OUT
Recovery from Output Short (V
IN=
5.0V, V
OUT=
1.5V)-PWM
V
IN = 5.0V
I
OUT = 0A
Mode= Hi
Ch1
V
LX
Ch2
I
LX
Ch4
V
IN
Output Short Circuit (V
OUT=3.3V)
Recovery from OCP (V
OUT=3.3V)
Output Short-Circuit (V
IN=
5.0V, V
OUT=
3.3V)-PWM
V
IN = 5.0V
Mode= Hi
Ch3
V
OUT
Ch1
V
LX
Ch2
I
LX
Ch4
PGood
Ch3
V
OUT
Recovery from Output Short (V
IN=
5.0V, V
OUT=
3.3V)-PWM
V
IN = 5.0V
I
OUT = 0A
Mode= Hi
Ch1
V
LX
Ch2
I
LX
Ch4
V
IN
Circuit Conditions: C
IN= 22uF/6.3V, COUT= 2 x 22uF/6.3V, CSS= 10nF. Unless otherwise noted, L= 1.0uH (TOKO: FDV0530S-1R0).
Transient Response (V
IN=
5.0V, V
OUT=
1.5V)-PWM@CCDL
V
IN = 5.0V
I
OUT = 1A to 3A to 1A
Mode= Hi
Ch3
V
OUT
Ch2
I
OUT
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