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MC78FC30HT1 데이터시트 PDF




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부품번호 MC78FC30HT1 기능
기능 MICROPOWER ULTRA.LOW QUIESCENT CURRENT VOLTAGE REGULATORS
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MC78FC30HT1 데이터시트, 핀배열, 회로
ON Semiconductort
Micropower Voltage
Regulator
The MC78FC00 series voltage regulators are specifically designed
for use as a power source for video instruments, handheld
communication equipment, and battery powered equipment.
The MC78FC00 series voltage regulator ICs feature a high accuracy
output voltage and ultra–low quiescent current. Each device contains a
voltage reference unit, an error amplifier, a driver transistor, and
resistors for setting output voltage, and a current limit circuit. These
devices are available in SOT–89 surface mount packages, and allow
construction of an efficient, constant voltage power supply circuit.
MC78FC00 Series Features:
Ultra–Low Quiescent Current of 1.1 µA Typical
Ultra–Low Dropout Voltage (100 mV at 10 mA)
Large Output Current (up to 120 mA)
Excellent Line Regulation (0.1%)
Wide Operating Voltage Range (2.0 V to 10 V)
High Accuracy Output Voltage (±2.5%)
Wide Output Voltage Range (2.0 V to 6.0 V)
Surface Mount Package (SOT–89)
ORDERING INFORMATION
Device
Output
Voltage
Operating
Temperature Range
Package
MC78FC30HT1
MC78FC33HT1
MC78FC40HT1
MC78FC50HT1
3.0
3.3
4.0
TA = –30° to +80°C
SOT–89
5.0
Other voltages from 2.0 to 6.0 V, in 0.1 V increments, are available upon request.
Consult factory for information.
Representative Block Diagram
2
Vin
3
VO
MC78FC00
Series
MICROPOWER ULTRA–LOW
QUIESCENT CURRENT
VOLTAGE REGULATORS
SEMICONDUCTOR
TECHNICAL DATA
TAB
1
H SUFFIX
PLASTIC PACKAGE
CASE 1213
(SOT–89)
PIN CONNECTIONS
Ground 1
Input 2
Output 3
(Top View)
Tab
(Tab is connected
to Pin 2)
Standard Application
Input 2
3
MC78FCXX
Cin 1
Output
CO
Vref
This device contains 11 active transistors.
© Semiconductor Components Industries, LLC, 2001
April, 2001 – Rev. 2
1
Gnd
1
Publication Order Number:
MC78FC00/D




MC78FC30HT1 pdf, 반도체, 판매, 대치품
MC78FC00 Series
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 µF 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.
Vin
0.1 µF
23
MC78FC00
1
VO
0.1 µF
Gnd Gnd
Figure 6. Typical Application
Vin
10 µF
Gnd
MJD32C
.033 µF
23
MC78FC00
100
0.1 µF
1
VO
0.1 µF
Gnd
Figure 7. Current Boost Circuit
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MC78FC30HT1 전자부품, 판매, 대치품
Notes
MC78FC00 Series
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부품번호상세설명 및 기능제조사
MC78FC30HT1

MICROPOWER ULTRA.LOW QUIESCENT CURRENT VOLTAGE REGULATORS

Motorola Semiconductors
Motorola Semiconductors
MC78FC30HT1

MICROPOWER ULTRA.LOW QUIESCENT CURRENT VOLTAGE REGULATORS

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