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參數(shù)資料
| 型號： | NCV4949PDG |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 固定正電壓單路輸出LDO穩(wěn)壓器 |
| 英文描述： | 100 mA, 5.0V, LDO w/ Reset, Delay, and Early Warning |
| 中文描述： | 5 V FIXED POSITIVE LDO REGULATOR, 0.5 V DROPOUT, PDSO8 |
| 封裝： | LEAD FREE, PLASTIC, SOIC-8 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大小： | 182K |
| 代理商： | NCV4949PDG |
Semiconductor Components Industries, LLC, 2008
November, 2008 Rev. 12
1
Publication Order Number:
L4949/D
L4949, NCV4949
100 mA, 5.0 V, Low Dropout
Voltage Regulator with
Reset and Sense
The L4949 is a monolithic integrated 5.0 V voltage regulator with a
very low dropout and additional functions such as reset and an
uncommitted voltage sense comparator.
It is designed for supplying microcontroller/microprocessor
controlled systems particularly in automotive applications.
Features
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 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
Voltage Sense Comparator
Thermal Shutdown and Short Circuit Protections
NCV Prefix for Automotive and Other Applications Requiring Site
and Change Control
These are PbFree Devices
Regulator
1.23 Vref
2.0 V
2.0
mA
Reset
1.23 V
Sense
GND
Sense
Output
(So)
Reset
Sense
Input
(Si)
Supply
Voltage (VCC)
VZ
Output
Voltage (Vout)
CT
38
4
6
7
5
2
1
Vs
+
-
+
-
Preregulator
6.0 V
Figure 1. Representative Block Diagram
http://onsemi.com
(Top View)
PIN CONNECTIONS
1
2
3
4
8
7
6
5
VZ
CT
GND
Si
VCC
Reset
So
Vout
SOIC8
D SUFFIX
CASE 751
PDIP8
N SUFFIX
CASE 626
1
8
1
8
1
8
L4949N
AWL
YYWWG
L4949
ALYWD
G
1
8
See detailed ordering and shipping information in the package
dimensions section on page 9 of this data sheet.
ORDERING INFORMATION
A
= Assembly Location
WL, L
= Wafer Lot
YY, Y
= Year
WW, W = Work Week
G or G = PbFree Device
MARKING DIAGRAMS
1
20
SOIC20W
DW SUFFIX
CASE 751D
20
1
L4949DW
AWLYYWWG
1
8
SOIC8 EP
PD SUFFIX
CASE 751AC
1
8
V4949
ALYWG
G
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| NCV4949PDR2G | 功能描述:低壓差穩(wěn)壓器 - LDO 100mA 5V LDO VO 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 |
| NCV494BDR2 | 功能描述:電壓模式 PWM 控制器 Switchmode PWM RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| NCV494BDR2G | 功能描述:電壓模式 PWM 控制器 Switchmode PWM RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| NCV502 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:80 mA CMOS Low Iq Low-Dropout Voltage |
| NCV502SN50T1G | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:80 mA CMOS Low Iq Low-Dropout Voltage |
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