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參數(shù)資料
| 型號(hào)： | MC34161D |
| 廠商： | MOTOROLA INC |
| 元件分類： | 電源管理 |
| 英文描述： | Single Output LDO, 250mA, Fixed(5.0V), Low Noise, Fast Transient Response 8-SOIC -40 to 85 |
| 中文描述： | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封裝： | PLASTIC, SO-8 |
| 文件頁(yè)數(shù)： | 13/16頁(yè) |
| 文件大?。?/td> | 292K |
| 代理商： | MC34161D |
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MC34161 MC33161
13
MOTOROLA ANALOG IC DEVICE DATA
Figure 26. Step–Down Converter
+
1.27V
+
1.27V
+
2.8V
+
0.6V
+
–
2.54V
Reference
–
+
–
+
+
–
4
1
7
2
3
5
6
8
0.005
470
0.01
1.8k
+
330
Vin
12V
4.7k
1.6k
0.01
47k
1N5819
MPS750
470
μ
H
+
1000
VO
5.0V/250mA
Test
Conditions
Results
Line Regulation
Vin = 9.5 V to 24 V, IO = 250 mA
Vin = 12 V, IO = 0.25 mA to 250 mA
Vin = 12 V, IO = 250 mA
Vin = 12 V, IO = 250 mA
40 mV =
±
0.1%
Load Regulation
2.0 mV =
±
0.2%
Output Ripple
50 mVpp
Efficiency
87.8%
The above figure shows the MC34161 configured as a step–down converter. Channel 1 monitors the output voltage while Channel 2
performs the oscillator function. Upon initial power–up, the converters output voltage will be below nominal, and the output of Channel
1 will allow the oscillator to run. The external switch transistor will eventually pump–up the output capacitor until its voltage exceeds the
input threshold of Channel 1. The output of Channel 1 will then switch low and disable the oscillator. The oscillator will commence
operation when the output voltage falls below the lower threshold of Channel 1.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC34161DG | 功能描述:監(jiān)控電路 Universal Voltage Monitor RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MC34161DG | 制造商:ON Semiconductor 功能描述:Voltage Detector / Microprocessor Superv |
| MC34161DMR2 | 功能描述:監(jiān)控電路 Universal Voltage RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MC34161DMR2G | 功能描述:監(jiān)控電路 Universal Voltage Monitor RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MC34161DR2 | 功能描述:監(jiān)控電路 Universal Voltage RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
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