參數(shù)資料
型號： L4949D
廠商： MOTOROLA INC
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： MULTIFUNCTION VERY LOW DROPOUT VOLTAGE REGULATOR
中文描述： 5 V FIXED POSITIVE LDO REGULATOR, 0.5 V DROPOUT, PDSO8
封裝： PLASTIC, SO-8
文件頁數(shù)： 1/8頁
文件大小： 191K
代理商： L4949D
Device
Operating
Temperature Range
Package
SILICON MONOLITHIC
INTEGRATED CIRCUIT
MULTIFUNCTION
VERY LOW DROPOUT
VOLTAGE REGULATOR
ORDERING INFORMATION
L4949N
L4949D
TJ = –40
°
to +125
°
C
DIP–8
SO–8
D SUFFIX
PLASTIC PACKAGE
CASE 751
8
1
(Top View)
PIN CONNECTIONS
Order this document from L4949/D
N SUFFIX
PLASTIC PACKAGE
CASE 626
8
1
1
2
3
4
8
7
6
5
VZ
CT
Gnd
S
i
V
CC
Reset
So
Vout
The L4949 is a monolithic integrated 5.0 V voltage regulator with a very
low dropout and additional functions such as power–on reset and input
voltage sense.
It is designed for supplying the micro–computer controlled systems
especially in automotive applications.
Operating DC Supply Voltage Range 5.0 V to 28 V
Transient Supply Voltage Up to 40 V
Extremely Low Quiescent Current in Standby Mode
High Precision Standby Output Voltage 5.0 V
±
1%
Output Current Capability Up to 100 mA
Very Low Dropout Voltage Less Than 0.4 V
Reset Circuit Sensing The Output Voltage
Programmable Reset Pulse Delay With External Capacitor
Voltage Sense Comparator
Thermal Shutdown and Short Circuit Protections
Regulator
1.23 Vref
2.0 V
2.0
μ
A
Reset
1.23 V
Sense
Gnd
Sense
Output
(So)
Reset
Sense
Input
(Si)
Supply
Voltage (VCC)
VZ
Output
Voltage (Vout)
CT
3
8
4
6
7
5
2
1
Vs
+
–
+
–
Preregulator
6.0 V
Representative Block Diagram
Motorola, Inc. 1998
Rev 1
相關(guān)PDF資料
PDF描述
L4949N MULTIFUNCTION VERY LOW DROPOUT VOLTAGE REGULATOR
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L4X8E6 Sensitive Triacs (0.8 A to 8 A)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L4949DG 功能描述:低壓差穩(wěn)壓器 - LDO 5V 100mA w/Power-On Reset 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(fù)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
L4949DG 制造商:ON Semiconductor 功能描述:Linear Voltage Regulator IC
L4949DR2 功能描述:低壓差穩(wěn)壓器 - LDO 5V 100mA w/Power-On 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(fù)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
L4949DR2G 功能描述:低壓差穩(wěn)壓器 - LDO 5V 100mA w/Power-On Reset 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(fù)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
L4949E 功能描述:低壓差穩(wěn)壓器 - LDO 5V Multifunction LDO 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(fù)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
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