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參數資料
| 型號： | L4949ED |
| 廠商： | 意法半導體 |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | MULTIFUNCTION VERY LOW DROP VOLTAGE REGULATOR |
| 中文描述： | 多功能很好低壓降穩壓器 |
| 文件頁數： | 1/10頁 |
| 文件大小： | 77K |
| 代理商： | L4949ED |
L4949E
MULTIFUNCTIONVERY LOW DROP
VOLTAGE REGULATOR
OPERATING DC SUPPLY VOLTAGE RANGE
5V - 28V
TRANSIENT SUPPLY VOLTAGEUP TO 40V
EXTREMELY LOW QUIESCENT CURRENT
IN STANDBYMODE
HIGH PRECISION STANDBY OUTPUT VOLT-
AGE 5V
±
1%
OUTPUT CURRENT CAPABILITY UP TO
100mA
VERY LOW DROPOUT VOLTAGE LESS
THAN 0.5V
RESET CIRCUIT SENSING THE OUTPUT
VOLTAGE
PROGRAMMABLE RESET PULSE DELAY
WITH EXTERNAL CAPACITOR
VOLTAGESENSECOMPARATOR
THERMAL SHUTDOWN AND SHORT CIR-
CUIT PROTECTIONS
DESCRIPTION
The L4949Eis a monolithic integrated 5V voltage
regulator with a very low dropout output and addi-
tional functions as power-on reset and input volt-
age sense. It is designed for supplying the micro-
computer
controlled
systems
automotiveapplications.
especially
in
June 2000
REG
1.23V
REF
SI
SO
RES
GND
D96AT219
PREREGULATOR 5V
V
S
2
μ
+
RESET
2V
SENSE
V
S
1.23V
CT
V
OUT
V
Z
BLOCK DIAGRAM
ORDERING NUMBERS:
L4949E (Minidip)
L4949ED (SO8)
L4949EP (SO20W)
Minidip
SO8
SO20W (12+4+4)
1/10
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PDF描述 |
|---|---|
| L4949EP | MULTIFUNCTION VERY LOW DROP VOLTAGE REGULATOR |
| L4953G | MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO |
| L4959 | MULTIFUNCTION VOLTAGE REGULATOR FOR HOME AUDIO |
| L4960 | Isolated Flyback Switching Regulator with 9V Output |
| L4960H | Isolated Flyback Switching Regulator with 9V Output |
相關代理商/技術參數 |
參數描述 |
|---|---|
| L4949ED013TR | 功能描述:低壓差穩壓器 - 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 |
| L4949ED013TR-1LF | 制造商:STMicroelectronics 功能描述:REG LDO LIN FIX POS 5V 0.1A 8SOIC - Tape and Reel |
| L4949ED013TR-5 | 制造商:STMicroelectronics 功能描述:REG LDO LIN FIX POS 5V 0.1A 8SOIC NON ROHS - Tape and Reel |
| L4949ED013TR-VI | 制造商:STMicroelectronics 功能描述:REG LDO LIN FIX POS 5V 0.1A 8SOIC LEADED - Tape and Reel |
| L4949ED-E | 功能描述:低壓差穩壓器 - 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 |
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