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參數(shù)資料
| 型號： | NCV4949 |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 100 mA, 5.0 V, Low Dropout Voltage Regulator with Power-On Reset(100 mA, 5.0 V, 具有上電復位功能的低壓差穩(wěn)壓器) |
| 中文描述： | 一○○毫安，5.0 V固定，低壓差線性穩(wěn)壓器的上電復位（100毫安，5.0五，具有上電復位功能的低壓差穩(wěn)壓器） |
| 文件頁數(shù)： | 1/10頁 |
| 文件大?。?/td> | 116K |
| 代理商： | NCV4949 |
Semiconductor Components Industries, LLC, 2006
June, 2006 Rev. 9
1
Publication Order Number:
L4949/D
L4949, NCV4949
100 mA, 5.0 V, Low Dropout
Voltage Regulator with
PowerOn Reset
The L4949 is a monolithic integrated 5.0 V voltage regulator with a
very low dropout and additional functions such as poweron reset and
input voltage sense.
It is designed for supplying the microcomputer controlled systems
especially 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 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
NCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
PbFree Packages are Available
Regulator
1.23 V
ref
2.0 V
2.0 A
Reset
1.23 V
Sense
GND
Sense
Output
(S
o
)
Reset
Sense
Input
(S
i
)
Supply
Voltage (V
CC
)
V
Z
Output
Voltage (V
out
)
C
T
3
8
4
6
7
5
2
1
V
s
+
+
Preregulator
6.0 V
Figure 1. Representative Block Diagram
http://onsemi.com
(Top View)
PIN CONNECTIONS
1
2
3
4
8
7
6
5
V
Z
C
T
GND
S
i
V
CC
Reset
S
o
V
out
SOIC8
D SUFFIX
CASE 751
PDIP8
N SUFFIX
CASE 626
1
8
1
8
1
8
L4949N
AWL
YYWWG
L4949
ALYWD
1
8
See detailed ordering and shipping information in the package
dimensions section on page 8 of this data sheet.
ORDERING INFORMATION
A
WL, L
YY, Y
WW, W = Work Week
G or
= PbFree Device
= Assembly Location
= Wafer Lot
= Year
MARKING DIAGRAMS
1
20
SOIC20W
DW SUFFIX
CASE 751D
20
1
L4949DW
AWLYYWWG
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相關代理商/技術參數(shù) |
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|---|---|
| NCV4949A | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:100 mA, 5.0 V, Low Dropout Voltage Regulator with Reset and Sense |
| NCV4949ADR2G | 功能描述:低壓差穩(wěn)壓器 - LDO 5.0V 100 MA 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 |
| NCV4949ADWR2G | 功能描述:低壓差穩(wěn)壓器 - LDO 5.0V 100 MA 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 |
| NCV4949APDR2G | 功能描述:低壓差穩(wěn)壓器 - LDO 5.0V 100 MA 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 |
| NCV4949DG | 功能描述:低壓差穩(wěn)壓器 - LDO ANA OSPI MULTIFNCTN 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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