參數(shù)資料
型號(hào)： MC34167
廠(chǎng)商： ON SEMICONDUCTOR
元件分類(lèi)： 基準(zhǔn)電壓源/電流源
英文描述： 500kHz and 1MHz High Efficiency 1.5A Switching Regulators; Package: SO; No of Pins: 8; Temperature Range: -40?°C to 85?°C
中文描述： 射頻放大器
文件頁(yè)數(shù)： 1/20頁(yè)
文件大小： 263K
代理商： MC34167
Semiconductor Components Industries, LLC, 2005
November, 2005 Rev. 7
1
Publication Order Number:
MC34167/D
MC34167, MC33167
5.0 A, StepUp/Down/
Inverting Switching
Regulators
The MC34167, MC33167 series are high performance fixed
frequency power switching regulators that contain the primary
functions required for dctodc converters. This series was
specifically designed to be incorporated in stepdown and
voltageinverting configurations with a minimum number of external
components and can also be used cost effectively in stepup
applications.
These devices consist of an internal temperature compensated
reference, fixed frequency oscillator with onchip timing components,
latching pulse width modulator for single pulse metering, high gain
error amplifier, and a high current output switch.
Protective features consist of cyclebycycle current limiting,
undervoltage lockout, and thermal shutdown. Also included is a low
power standby mode that reduces power supply current to 36 A.
Features
Output Switch Current in Excess of 5.0 A
Fixed Frequency Oscillator (72 kHz) with OnChip Timing
Provides 5.05 V Output without External Resistor Divider
Precision 2% Reference
0% to 95% Output Duty Cycle
CyclebyCycle Current Limiting
Undervoltage Lockout with Hysteresis
Internal Thermal Shutdown
Operation from 7.5 V to 40 V
Standby Mode Reduces Power Supply Current to 36 A
Economical 5Lead TO220 Package with Two Optional Leadforms
Also Available in Surface Mount D
2
PAK Package
Moisture Sensitivity Level (MSL) Equals 1
PbFree Packages are Available
Figure 1. Simplified Block Diagram
(Step Down Application)
EA
V
O
I
LIMIT
V
in
4
2
S
Q
R
UVLO
3
5
L
5.05 V/
5.0 A
Reference
Thermal
PWM
Oscillator
1
This device contains 143 active transistors.
TO220
TH SUFFIX
CASE 314A
See detailed ordering and shipping information in the package
dimensions section on page 17 of this data sheet.
ORDERING INFORMATION
1
5
MARKING
DIAGRAMS
1
5
TO220
TV SUFFIX
CASE 314B
1
5
Heatsink surface connected to Pin 3
TO220
T SUFFIX
CASE 314D
Pin
1.
2.
3.
4.
5.
Voltage Feedback Input
Switch Output
Ground
Input Voltage/V
CC
Compensation/Standby
D
2
PAK
D2T SUFFIX
CASE 936A
Heatsink surface (shown as
terminal 6 in case outline
drawing) is connected to Pin 3
x
A
WL = Wafer Lot
Y
= Year
WW = Work Week
G
= PbFree Package
= 3 or 4
= Assembly Location
MC
3x167T
AWLYWWG
1
5
1
5
http://onsemi.com
MC
3x167T
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MC
3x167T
AWLYWWG
MC
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參數(shù)描述
MC34167_05 制造商:ONSEMI 制造商全稱(chēng):ON Semiconductor 功能描述:5.0 A, Step−Up/Down/Inverting Switching Regulators
MC34167D2T 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 40V 5A RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)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(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
MC34167D2TG 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 40V 5A Buck/Boost/Inverting RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)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(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
MC34167D2TR4 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 40V 5A RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)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(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
MC34167D2TR4G 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 40V 5A Buck/Boost/Inverting RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)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(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
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