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MC33470DW bảng dữ liệu(PDF) 1 Page - ON Semiconductor

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Giải thích chi tiết về linh kiện  SYNCHRONOUS RECTIFICATION DC/DC CONVERTER PROGRAMMABLE INTEGRATED CONTROLLER
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MC33470
DW SUFFIX
PLASTIC PACKAGE
CASE 751D
(SO–20L)
20
1
Device
Operating
Temperature Range
Package
ORDERING INFORMATION
MC33470DW
SO–20L
TA = 0° to +75°C
Order this document by MC33470/D
SYNCHRONOUS
RECTIFICATION DC/DC
CONVERTER
PROGRAMMABLE
INTEGRATED CONTROLLER
SEMICONDUCTOR
TECHNICAL DATA
PIN CONNECTIONS
13
7
4
3
AGnd
OT
Fault
Pwrgd
VID4
VID3
VID2
VID1
VID0
11
12
14
15
16
17
18
10
9
8
6
5
(Top View)
Compensation
SS
Ifb
Imax
Sense
VCC
PGnd
1
G2
OUTEN
G1
19
20
2
PV
CC
1
MOTOROLA ANALOG IC DEVICE DATA
Synchronous Rectification
DC/DC Converter
Programmable Integrated
Controller
The MC33470 is a digitally programmable switching voltage regulator,
specifically designed for Microprocessor supply, Voltage Regulator Module
and general purpose applications, to provide a high power regulated output
voltage using a minimum of external parts. A 5–bit digital–to–analog converter
defines the dc output voltage.
This product has three additional features. The first is a pair of high speed
comparators which monitor the output voltage and expedite the circuit
response to load current changes. The second feature is a soft start circuit
which establishes a controlled response when input power is applied and
when recovering from external circuit fault conditions. The third feature is two
output drivers which provide synchronous rectification for optimum
efficiency.
This product is ideally suited for computer, consumer, and industrial
equipment where accuracy, efficiency and optimum regulation performance
is desirable.
MC33470 Features:
5–Bit Digital–to–Analog Converter Allows Digital Control of
Output Voltage
High Speed Response to Transient Load Conditions
Output Enable Pin Provides On/Off Control
Programmable Soft Start Control
High Current Output Drives for Synchronous Rectification
Internally Trimmed Reference with Low Temperature Coefficient
Programmable Overcurrent Protection
Overvoltage Fault Indication
Functionally Similar to the LTC1553
© Motorola, Inc. 1999
Rev 1


Số phần tương tự - MC33470DW

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