Datasheet > 电源电路 > 线性稳压器IC> LM317AT/NOPB

LM317AT/NOPB

更新时间： 2024-10-29 12:02:11

品牌	Logo	应用领域
德州仪器 - TI		线性稳压器IC 调节器电源电路输出元件 PC 局域网
页数	文件大小	规格书
38页	3851K
描述
LM117/LM317A/LM317-N 3-Terminal Adjustable Regulator

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LM317AT/NOPB 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	SFM
包装说明：	TO-220, 3 PIN	针数：	3
Reach Compliance Code：	not_compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	Factory Lead Time：	6 weeks
风险等级：	0.87	Samacsys Confidence：	4
Samacsys Status：	Released	Samacsys PartID：	248007
Samacsys Pin Count：	3	Samacsys Part Category：	Integrated Circuit
Samacsys Package Category：	Transistor Outline, Vertical	Samacsys Footprint Name：	NDE0003B
Samacsys Released Date：	2017-07-31 08:24:35	Is Samacsys：	N
可调性：	ADJUSTABLE	标称回动电压 1：	2.25 V
最大输入电压：	40 V	最小输入电压：	4.2 V
最大差分输入-输出电压：	40 V	最小差分输入-输出电压：	3 V
JESD-30 代码：	R-XSFM-T3	JESD-609代码：	e3
长度：	14.986 mm	最大电网调整率 (%/V)：	0.02
最大负载调整率 (%)：	1%	湿度敏感等级：	1
功能数量：	1	输出次数：	1
端子数量：	3	工作温度TJ-Max：	125 °C
工作温度TJ-Min：	-40 °C	最高工作温度：	125 °C
最低工作温度：	-40 °C	最大输出电流 1：	1.5 A
最大输出电压 1：	37 V	最小输出电压 1：	1.2 V
封装主体材料：	UNSPECIFIED	封装代码：	SFM
封装等效代码：	SIP3,.1TB	封装形状：	RECTANGULAR
封装形式：	FLANGE MOUNT	包装方法：	TUBE
峰值回流温度（摄氏度）：	NOT APPLICABLE	认证状态：	Not Qualified
调节器类型：	ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR	座面最大高度：	4.7 mm
子类别：	Other Regulators	表面贴装：	NO
技术：	BIPOLAR	端子面层：	Matte Tin (Sn)
端子形式：	THROUGH-HOLE	端子节距：	2.54 mm
端子位置：	SINGLE	处于峰值回流温度下的最长时间：	NOT APPLICABLE
宽度：	10.16 mm	Base Number Matches：	1

LM317AT/NOPB 数据手册

LM117, LM317-N

www.ti.com

SNVS774L –MAY 2004–REVISED FEBRUARY 2011

LM117/LM317A/LM317-N 3-Terminal Adjustable Regulator

Check for Samples: LM117, LM317-N

Normally, no capacitors are needed unless the device

FEATURES

is situated more than 6 inches 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 adjustment terminal can be

bypassed to achieve very high ripple rejection ratios

which are difficult to achieve with standard 3-terminal

regulators.

•

Specified 1% Output Voltage Tolerance

(LM317A)

•

Specified Max. 0.01%/V Line Regulation

(LM317A)

•

Specified Max. 0.3% Load Regulation (LM117)

Specified 1.5A Output Current

Besides replacing fixed regulators, the LM117 is

useful in a wide variety of other applications. Since

the regulator is “floating” and sees only the input-to-

output differential voltage, supplies of several

hundred volts can be regulated as long as the

maximum input to output differential is not exceeded,

i.e., avoid short-circuiting the output.

Adjustable Output Down to 1.2V

Current Limit Constant With Temperature

P⁺Product Enhancement Tested

80 dB Ripple Rejection

Output is Short-Circuit Protected

Also, it makes an especially simple adjustable

switching regulator, a programmable output regulator,

or by connecting a fixed resistor between the

adjustment pin and output, the LM117 can be used

DESCRIPTION

The LM117 series of adjustable 3-terminal positive

voltage regulators is capable of supplying in excess

of 1.5A over a 1.2V to 37V output range. They are

exceptionally easy to use and require only two

external resistors to set the output voltage. Further,

both line and load regulation are better than standard

fixed regulators. Also, the LM117 is packaged in

standard transistor packages which are easily

mounted and handled.

a precision current regulator. Supplies with

electronic shutdown can be achieved by clamping the

adjustment terminal to ground which programs the

output to 1.2V where most loads draw little current.

For applications requiring greater output current, see

LM150 series (3A) and LM138 series (5A) data

sheets. For the negative complement, see LM137

series data sheet.

In addition to higher performance than fixed

regulators, the LM117 series offers full overload

protection available only in IC's. Included on the chip

are current limit, thermal overload protection and safe

area protection. All overload protection circuitry

remains fully functional even if the adjustment

terminal is disconnected.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...38

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LM317AT/NOPB 替代型号

型号	品牌	替代类型	描述	数据表
LM317T/NOPB	TI	完全替代	LM117/LM317A/LM317-N 3-Terminal Adjustable Regulator
LM317T	TI	完全替代	LM117/LM317A/LM317-N 3-Terminal Adjustable Regulator
LM317AT	TI	完全替代	LM117/LM317A/LM317-N 3-Terminal Adjustable Regulator

与LM317AT/NOPB相关器件

型号	品牌	获取价格	描述	数据表
LM317A-TA3-T	UTC	获取价格	Regulator
LM317ATP+	NSC	获取价格	3-Terminal Adjustable Regulator
LM317A-TQ2-R	UTC	获取价格	Regulator
LM317A-TQ2-T	UTC	获取价格	Regulator
LM317B	BL Galaxy Electrical	获取价格	1.5A Linear Voltage Regulator with 40V Output
LM317BD2T	ONSEMI	获取价格	1.5 A Adjustable Output, Positive Voltage Regulator
LM317BD2TG	ONSEMI	获取价格	1.5 A Adjustable Output, Positive Voltage Regulator
LM317BD2TR4	ONSEMI	获取价格	1.5 A Adjustable Output, Positive Voltage Regulator
LM317BD2TR4G	ONSEMI	获取价格	1.5 A Adjustable Output, Positive Voltage Regulator
LM317BD2TT4	MOTOROLA	获取价格	1.2 V-37V ADJUSTABLE POSITIVE REGULATOR, PSSO2, PLASTIC, D2PAK-3

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