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CS51033YD8 数据表(PDF) 1 Page - ON Semiconductor

部件名 CS51033YD8
功能描述  Fast P?묬h FET Buck Controller
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制造商  ONSEMI [ON Semiconductor]
网页  http://www.onsemi.com
标志 ONSEMI - ON Semiconductor

CS51033YD8 数据表(HTML) 1 Page - ON Semiconductor

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© Semiconductor Components Industries, LLC, 2005
October, 2005 − Rev. 10
1
Publication Order Number:
CS51033/D
CS51033
Fast P−Ch FET Buck
Controller
The CS51033 is a switching controller for use in DC−DC
converters. It can be used in the buck topology with a minimum
number of external components. The CS51033 consists of a 1.0 A
power driver for controlling the gate of a discrete P−Channel
transistor, fixed frequency oscillator, short circuit protection timer,
programmable Soft−Start, precision reference, fast output voltage
monitoring comparator, and output stage driver logic with latch.
The high frequency oscillator allows the use of small inductors and
output capacitors, minimizing PC board area and systems cost. The
programmable Soft−Start reduces current surges at start up. The short
circuit protection timer significantly reduces the P−Ch FET duty cycle
to approximately 1/30 of its normal cycle during short circuit
conditions.
Features
1.0 A Totem Pole Output Driver
High Speed Oscillator (700 kHz max)
No Stability Compensation Required
Lossless Short Circuit Protection
2.0% Precision Reference
Programmable Soft−Start
Wide Ambient Temperature Range:
Industrial Grade: −40
°C to 85°C
Commercial Grade: 0
°C to 70°C
Pb−Free Packages are Available
PIN CONNECTIONS
51033 = Device Code
A
= Assembly Location
L
= Wafer Lot
Y
= Year
W
= Work Week
x
= Continuation of Device Code
x = Y or G
G
= Pb−Free Package
SOIC−8
D SUFFIX
CASE 751
1
8
MARKING DIAGRAM
VFB
GND
VCC
COSC
CS
PGND
VC
VGATE
1
http://onsemi.com
See detailed ordering and shipping information in the package
dimensions section on page 9 of this data sheet.
ORDERING INFORMATION
51033
ALYWx
G
1
8


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