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參數資料
| 型號： | MC33470DW |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 穩壓器 |
| 英文描述： | SYNCHRONOUS RECTIFICATION DC/DC CONVERTER PROGRAMMABLE INTEGRATED CONTROLLER |
| 中文描述： | SWITCHING CONTROLLER, 390 kHz SWITCHING FREQ-MAX, PDSO20 |
| 封裝： | PLASTIC, SOIC-20 |
| 文件頁數： | 1/16頁 |
| 文件大小： | 311K |
| 代理商： | MC33470DW |
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
PVCC
1
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
This document contains information on a new product. Specifications and information herein
are subject to change without notice.
Motorola, Inc. 1997
Rev 0
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MC33470DWG | 功能描述:直流/直流開關調節器 5-Bit Synchronous Rectification Buck RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| MC33470DWR2 | 功能描述:直流/直流開關調節器 5-Bit Synchronous RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| MC33470DWR2G | 功能描述:直流/直流開關調節器 5-Bit Synchronous Rectification Buck RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| MC33486ADH | 功能描述:電源開關 IC - 配電 DUALHIGH-SIDE BRIDGE RoHS:否 制造商:Exar 輸出端數量:1 開啟電阻（最大值）:85 mOhms 開啟時間（最大值）:400 us 關閉時間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-23-5 |
| MC33486ADHR2 | 功能描述:電源開關 IC - 配電 DUALHIGH-SIDE BRIDGE RoHS:否 制造商:Exar 輸出端數量:1 開啟電阻（最大值）:85 mOhms 開啟時間（最大值）:400 us 關閉時間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-23-5 |
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