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SP6122 Datasheet(PDF) 5 Page - Sipex Corporation

No. de pieza SP6122
Descripción Electrónicos  Low Voltage, Micro 8, PFET, Buck Controller Ideal for 1A to 5A, Small Footprint, DC-DC Power Converters
PDF  19 Pages
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Fabricante Electrónico  SIPEX [Sipex Corporation]
Página de inicio  http://www.sipex.com
Logo SIPEX - Sipex Corporation

SP6122 Datasheet(HTML) 5 Page - Sipex Corporation

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5
Rev. 7/16/03
SP6122 Low Voltage, Micro 8, PFET, Buck Controller
© Copyright 2003 Sipex Corporation
BLOCK DIAGRAM
+
-
-
+
-
+
-
+
PFET
Driver
Driver
Logic
S
Q
R
Reset
Dominant
S
Q
R
200ns Blanking
One Shot
ENABLE
ISET
VOUT
ISENSE
Reference
5
4
3
6
SS
1.25V
Reference
Comparator
1V
FFLAG
2
7
GND
8
1
PFET OFF
RESET
Dominant
PFET OFF
FAULT
+
-
X 3.3
500mV
(3800 ppm/°C)
PDRV
TON
Min On Time Clock
PDRV
VCC
Loop
Latch
QB
VOUT * K1
Soft Start Clock
S
Q
R
Run
Latch
QB
S
R
SS
Latch
QB
Reset
Dominant
Start On Time
Soft Start
Reset
Dominant
POR
X K1
Over Current
(Gated S&H)
POR
ISET < 1V
Low IQ
ISET
ISENSE
POR
Blank
20µA
(4300 ppm/°C)



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