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參數資料
| 型號： | MC78FC40HT1 |
| 廠商： | MOTOROLA INC |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | MICROPOWER ULTRA.LOW QUIESCENT CURRENT VOLTAGE REGULATORS |
| 中文描述： | 4 V FIXED POSITIVE LDO REGULATOR, 0.7 V DROPOUT, PSSO3 |
| 封裝： | PLASTIC, SOT-89, 3 PIN |
| 文件頁數： | 4/4頁 |
| 文件大小： | 90K |
| 代理商： | MC78FC40HT1 |
MC78FC00 Series
APPLICATIONS INFORMATION
4
MOTOROLA ANALOG IC DEVICE DATA
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
μ
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
VO
Gnd
Vin
Gnd
1
0.1
μ
F
0.1
μ
F
MC78FC00
Figure 7. Current Boost Circuit
2
3
VO
Gnd
Vin
Gnd
1
0.1
μ
F
10
μ
F
MC78FC00
MJD32C
0.1
μ
F
100
.033
μ
F
H SUFFIX
PLASTIC PACKAGE
CASE 1213
(SOT–89)
ISSUE O
OUTLINE DIMENSIONS
DIM
A2
B
B1
C
D
D1
E
E1
e
e1
L1
MIN
1.40
0.37
0.32
0.30
4.40
1.50
–––
2.40
1.50 BSC
3.00 BSC
0.80
MAX
1.60
0.57
0.52
0.50
4.60
1.70
4.25
2.60
MILLIMETERS
–––
NOTES:
1. DIMENSIONS ARE IN MILLIMETERS.
2. INTERPRET DIMENSIONS AND TOLERANCING
PER ASME Y14.5M, 1994.
3. DATUM C IS A SEATING PLANE.
A
D
E1
B
L1
E
D1
e
e1
C
M
0.10
C
S
B
S
A
M
0.10
C
S
B
S
A
B
B1
2X
A2
C
Mfax is a trademark of Motorola, Inc.
How to reach us:
USA/EUROPE/Locations Not Listed
: Motorola Literature Distribution;
P.O. Box 5405, Denver, Colorado 80217. 303–675–2140 or 1–800–441–2447
JAPAN
: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, 6F Seibu–Butsuryu–Center,
3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 81–3–3521–8315
Mfax
: RMFAX0@email.sps.mot.com – TOUCHTONE 602–244–6609
INTERNET
: http://Design–NET.com
ASIA/PACIFIC
: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park,
51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298
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| MC78FC40HT1G | 功能描述:低壓差穩壓器 - 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 負載調節:0.3 % 輸出端數量: 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 |
| MC78FC50HT1 | 功能描述:IC REG LDO 5V .12A SOT89 RoHS:否 類別:集成電路 (IC) >> PMIC - 穩壓器 - 線性 系列:- 產品變化通告:Heatsink Pkg Change 09/Oct/2007 標準包裝:50 系列:- 穩壓器拓撲結構:正，固定式 輸出電壓:24V 輸入電壓:最高 40 V 電壓 - 壓降（標準）:2V @ 1A 穩壓器數量:1 電流 - 輸出:1A 電流 - 限制（最?。?- 工作溫度:0°C ~ 125°C 安裝類型:通孔 封裝/外殼:TO-220-3 供應商設備封裝:TO-220-3 包裝:管件 |
| MC78FC50HT1G | 功能描述:低壓差穩壓器 - LDO 5.0V 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 負載調節:0.3 % 輸出端數量: 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 |
| MC78FC50HT1G-CUT TAPE | 制造商:ON 功能描述:MC78FC00 Series 10 V 120 mA Surface Mount Micropower Voltage Regulator -SOT-89-3 |
| MC-78K0R-IE3 | 制造商:Renesas Electronics Corporation 功能描述:KIT DEMO EVAL 78K0R IE3 |
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