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參數(shù)資料
| 型號： | MC78FC33 |
| 廠商： | ON SEMICONDUCTOR |
| 英文描述： | Micropower Voltage Regulator(微功率穩(wěn)壓器) |
| 中文描述： | 微功耗穩(wěn)壓器（微功率穩(wěn)壓器） |
| 文件頁數(shù)： | 4/5頁 |
| 文件大?。?/td> | 67K |
| 代理商： | MC78FC33 |
MC78FC00 SERIES
http://onsemi.com
4
APPLICATIONS INFORMATION
Introduction
The MC78FC00 micropower voltage regulators are
specifically designed with internal current limiting and low
quiescent current making them ideal for battery powered
applications. An input bypass capacitor is recommended if
the regulator is located an appreciable distance (
≥
4 inches)
from the input voltage source. These regulators require
0.1
F capacitance between the output terminal and ground
for stability. Most types of aluminum, tantalum or multilayer
ceramic will perform adequately. Solid tantalums or other
appropriate capacitors are recommended for operation
below 25
°
C. The bypass capacitors should be mounted with
the shortest possible leads or track lengths directly across the
regulator input and output terminals.
With economical electrolytic capacitors, cold temperature
operation can pose a serious stability problem. As the
electrolyte freezes, around 30
°
C, the capacitance will
decrease and the equivalent series resistance (ESR) will
increase drastically, causing the circuit to oscillate. Quality
electrolytic capacitors with extended temperature ranges of
40
°
to +85
°
C are readily available. Solid tantalum
capacitors may be the better choice if small size is a
requirement. However, a maximum ESR limit of 3.0 must
be observed over temperature to maintain stability.
Figure 6 is a typical circuit application. Figure 7 is a
current boost circuit which can deliver more than 600 mA.
The circuit has no current limiting and the external transistor
must be rated for the expected power dissipation.
Figure 6. Typical Application
2
3
V
O
GND
V
in
GND
1
0.1 F
0.1 F
MC78FC00
Figure 7. Current Boost Circuit
2
3
V
O
GND
V
in
GND
1
0.1 F
10 F
MC78FC00
MJD32C
0.1 F
100
.033 F
ORDERING INFORMATION
Device
Device
Marking
Output
Voltage
Operating
Temperature Range
Package
Shipping
MC78FC30HT1
0K
3.0
T
A
= 30
°
to +80
°
C
SOT89
1000 / Tape & Reel
MC78FC30HT1G
SOT89
(PbFree)
MC78FC33HT1
3K
3.3
SOT89
MC78FC33HT1G
SOT89
(PbFree)
MC78FC40HT1
0L
4.0
SOT89
MC78FC40HT1G
SOT89
(PbFree)
MC78FC50HT1
0M
5.0
SOT89
MC78FC50HT1G
SOT89
(PbFree)
For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
NOTE:
Other voltages from 2.0 to 6.0 V, in 0.1 V increments, are available upon request. Consult factory for information.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC78FC33HT1 | 制造商:Rochester Electronics LLC 功能描述: 制造商:ON Semiconductor 功能描述: |
| MC78FC33HT1G | 功能描述:低壓差穩(wěn)壓器 - LDO 3.3V 120mA Low Iq RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MC78FC33HT1G | 制造商:ON Semiconductor 功能描述:Voltage Regulator IC |
| MC78FC40HT1 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MC78FC40HT1G | 功能描述:低壓差穩(wěn)壓器 - LDO 4.0V 120mA Low Iq RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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