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參數資料
| 型號： | L4938E |
| 廠商： | 意法半導體 |
| 英文描述： | ADVANCED VOLTAGE REGULATOR |
| 中文描述： | 高級穩壓器 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 101K |
| 代理商： | L4938E |
L4938E/ED
L4938EPD
ADVANCED VOLTAGE REGULATOR
ENABLE AND SENSE INPUTS (EN, SI) PRO-
TECTED AGAINST NEGATIVE TRANSIENTS
DOWN TO-5V
RESET THRESHOLD ADJUSTABLE FROM
3.8 TO 4.7V
EXTREMELY LOW QUIESCENT CURRENT,
65
μ
A (LESS THAN 90
μ
A) IN STANDBY
MODE
OPERATING DC SUPPLY VOLTAGE RANGE
5V - 28V
OPERATING TRANSIENT SUPPLY VOLT-
AGE UP TO 40V
HIGH PRECISION STANDBY OUTPUT VOLT-
AGE 5V
±
1% WITH 100mA CURRENT CA-
PABILITY
OUTPUT 2 VOLTAGE 5V
±
2% WITH 400mA
CURRENT CAPABILITY (ADJ WIRED TO
V
OUT2
)
OUTPUT 2 VOLTAGE ADJUSTABLE BY EX-
TERNAL VOLTAGEDIVIDER
OUTPUT
2
DISABLE
STANDBY MODE
FUNCTION
FOR
DESCRIPTION
The L4938E/ED/EPD is a monolithic integrated
dual voltage regulator with two very low dropout
outputs and additional functions as power-on re-
set and input voltage sense. It is designed for
supplying the microcomputer controlled systems
especiallyin automotiveapplications.
February 1999
PIN CONNECTIONS
DIP (12+2+2)
SO20 (12+4+4)
PowerSO20
ORDERING NUMBERS:
L4938E (DIP)
L4938ED (SO)
L4938EPD (PSO)
PR
CT
EN
GND
GND
SO
RES
1
3
2
4
5
6
7
OUT2
GND
N.C.
GND
VS2
VS1
SI
16
15
14
13
12
10
11
D94AT075A
OUT1
8
ADJ
9
DIP (12+2+2)
PR
CT
EN
GND
GND
GND
GND
RES
SO
OUT2
N.C.
GND
GND
GND
GND
VS2
VS1
SI
1
3
2
4
5
6
7
8
9
18
17
16
15
14
12
13
11
19
10
20
OUT1
ADJ
D94AT076A
SO (12+4+4)
GND
N.C.
N.C.
V
S2
V
S1
SI
PR
CT
EN
N.C.
GND
10
8
9
7
6
5
4
3
2
13
14
15
16
17
19
18
20
12
1
11
GND
L4938EPD
N.C.
RESET
OUT1
SO
ADJ
OUT2
N.C.
GND
PowerSO20
1/12
相關PDF資料 |
PDF描述 |
|---|---|
| L4938ED | ADVANCED VOLTAGE REGULATOR |
| L4938EPD | ADVANCED VOLTAGE REGULATOR |
| L4938NPD | DUAL MULTIFUNCTION VOLTAGE REGULATOR |
| L4938N | DUAL MULTIFUNCTION VOLTAGE REGULATOR |
| L4938ND | DUAL MULTIFUNCTION VOLTAGE REGULATOR |
相關代理商/技術參數 |
參數描述 |
|---|---|
| L4938ED | 功能描述:低壓差穩壓器 - LDO Dual 5V Very 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 |
| L4938ED013TR | 功能描述:低壓差穩壓器 - LDO Dual 5V Very 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 |
| L4938EDTR-E | 制造商:STMicroelectronics 功能描述:PTS SMARTPOWER - Tape and Reel 制造商:STMicroelectronics 功能描述:Advanced Voltage Reg 3.8V to 4.7V 65uA |
| L4938EPD | 功能描述:低壓差穩壓器 - LDO Dual 5V Very 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 |
| L4938EPD13TR | 功能描述:低壓差穩壓器 - LDO Dual 5V Very 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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