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參數(shù)資料
| 型號(hào)： | LM317K |
| 廠(chǎng)商： | 意法半導(dǎo)體 |
| 英文描述： | 1.2V TO 37V VOLTAGE REGULATOR |
| 中文描述： | 為1.2V到37V電壓調(diào)節(jié)器 |
| 文件頁(yè)數(shù)： | 1/3頁(yè) |
| 文件大小： | 213K |
| 代理商： | LM317K |
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The
LM
317 are adjustable 3-terminal positive-voltage regulators capable of supplying 1.5A over
a differential voltage range of 3V to 40V. They are exceptionally easy to use and require only two
external resistors to set the output voltage. Both input and output regulation is better than
standard fixed regulators.
In addition to higher performance than fixed regulators, these regulators offer full overload
protection available only in integrated circuits. Included on the chip are current limit, thermal
overload protection, and safe-area protection. All overload protection circuit remains fully
functional even if the adjustment terminal is disconnected. Normally, no capacitors are needed
unless the device is situated far from the input filter capacitors in which case an input bypass is
needed. An optional output capacitor can be added to improve transient response.
The primary applications of each of these regulators is that of a programmable output regulator,
but by connecting a fixed resistor between adjustment terminal and the output terminal, each
device can be used as a precision current regulator. Even though the regulator is floating and
sees only the input-to-output differential voltage, use of these devices to regulate output voltages
that would cause the maximum-rated differential voltage to be exceeded if the output became
shorted is not recommended
FEATURES
!
Output Voltage Range Adjustable from1.2 V to 37V
!
Output Current Capability of 1.5A Max
!
Input Regulation Typically 0.01% Per Input-Volt
Change
!
Output Regulation Typically 0.1%
!
Peak Output Current Constant over Temperature
Range of Regulator
!
Popular 3-Lead TO-220 AB Package
!
Ripple Rejection Typically 80 dB
ABSOLUTE MAXIMUM RATINGS
Input-Output Voltage Differential V
I
- V
O
Operating Junction Temperature Range
Continuous total dissipation at 25
Continuous total dissipation at (or below ) 25
Storage Temperature
Lead Temperature1.6 mm from case for 10 seconds
40V
℃
0
℃
to +125
2000mW
℃
free-air temperature
℃
case temperature
15W
–65
℃
to +150
℃
℃
260
RECOMMENDED OPERATING CONDITIONS
MIN
10
0
MAX
1500
70
℃
UNIT
mA
OUTPUT CURRENT, I
O
OPERATING VIRTUAL JUNCTION TEMPERATURE,T
J
Wing Shing Computer Components Co., (H.K.)Ltd.
Homepage:
http://www.wingshing.com
Tel:(852)2341 9276 Fax:(852)2797 8153
E-mail: wsccltd@hkstar.com
3-TERMINAL ADJUSTABLE REGULATORS
TO-220 PACKAGE
LM317T
INPUT
OUTPUT
ADJUSTMENT
A
D
I
LM317
A
O
I
TO-92
LM317LZ
INPUT
OUTPUT
ADJ
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM317P | 1.2V TO 37V VOLTAGE REGULATOR |
| LM317T | 1.2V TO 37V VOLTAGE REGULATOR |
| LM317 | 1.2V TO 37V VOLTAGE REGULATOR |
| LM317LZ | 3-Terminal Adjustable Output Positive Voltage |
| LM317LBD | LOW CURRENT THREE.TERMINAL ADJUSTABLE POSITIVE VOLTAGE REGULATOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM317K STEEL | 功能描述:線(xiàn)性穩(wěn)壓器 - 標(biāo)準(zhǔn) RoHS:否 制造商:STMicroelectronics 輸出類(lèi)型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負(fù)載調(diào)節(jié): 最大輸入電壓:5.5 V 線(xiàn)路調(diào)整率: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-323-5L |
| LM317K STEEL/NOPB | 功能描述:IC REG LDO ADJ 1.5A TO-3 RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線(xiàn)性 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式 輸出電壓:2.7V 輸入電壓:最高 5.5V 電壓 - 壓降（標(biāo)準(zhǔn)）:0.21V @ 150mA 穩(wěn)壓器數(shù)量:1 電流 - 輸出:150mA 電流 - 限制（最?。?- 工作溫度:-40°C ~ 125°C 安裝類(lèi)型:表面貼裝 封裝/外殼:SOT-23-5 細(xì)型，TSOT-23-5 供應(yīng)商設(shè)備封裝:TSOT-23-5 包裝:剪切帶 (CT) 產(chǎn)品目錄頁(yè)面:1100 (CN2011-ZH PDF) 其它名稱(chēng):576-1852-1 |
| LM317K | 制造商:STMicroelectronics 功能描述:IC V REG ADJ +1.2/37V TO-3-2 317 |
| LM317K/883 | 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:Positive Adjustable Voltage Regulator |
| LM317K-AA3-R | 制造商:UTC-IC 制造商全稱(chēng):UTC-IC 功能描述:HIGH CURRENT 1.3V TO 37V ADJUSTABLE VOLTAGE REGULATOR |
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