5秒后页面跳转
捷配首页

Datasheet > 电源电路 > 线性稳压器IC> LM2991SX
LM2991SX PDF预览

LM2991SX

更新时间： 2024-11-23 12:09:43
品牌 Logo 应用领域
德州仪器 - TI 稳压器
页数 文件大小 规格书
19页 2011K
描述
LM2991 Negative Low Dropout Adjustable Regulator

阅读下载

中文翻译

获取价格

LM2991SX 技术参数

生命周期：Not Recommended零件包装代码：D2PAK
包装说明：TO-263, SMSIP5H,.6,67TB针数：4
Reach Compliance Code：not_compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：1 week
风险等级：7.37可调性：ADJUSTABLE
最大回动电压 1：1 V标称回动电压 1：0.6 V
最大输入电压：0.3 V最小输入电压：26 V
JESD-30 代码：R-PSSO-G5JESD-609代码：e0
长度：10.16 mm最大电网调整率 (%/V)：0.04
最大负载调整率 (%)：0.4%湿度敏感等级：3
功能数量：1输出次数：1
端子数量：5工作温度TJ-Max：125 °C
工作温度TJ-Min：-40 °C最大输出电流 1：1 A
最大输出电压 1：25 V最小输出电压 1：2 V
封装主体材料：PLASTIC/EPOXY封装代码：TO-263
封装等效代码：SMSIP5H,.6,67TB封装形状：RECTANGULAR
封装形式：SMALL OUTLINE包装方法：TR
峰值回流温度（摄氏度）：235认证状态：Not Qualified
调节器类型：ADJUSTABLE NEGATIVE SINGLE OUTPUT LDO REGULATOR座面最大高度：4.8 mm
子类别：Other Regulators表面贴装：YES
技术：BIPOLAR端子面层：Tin/Lead (Sn/Pb)
端子形式：GULL WING端子节距：1.7 mm
端子位置：SINGLE处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：8.64 mmBase Number Matches：1

LM2991SX 数据手册

 浏览型号LM2991SX的Datasheet PDF文件第2页浏览型号LM2991SX的Datasheet PDF文件第3页浏览型号LM2991SX的Datasheet PDF文件第4页浏览型号LM2991SX的Datasheet PDF文件第5页浏览型号LM2991SX的Datasheet PDF文件第6页浏览型号LM2991SX的Datasheet PDF文件第7页 
LM2991  
www.ti.com  
SNVS099H –MAY 1999–REVISED JUNE 2013  
LM2991 Negative Low Dropout Adjustable Regulator  
Check for Samples: LM2991  
1
FEATURES  
DESCRIPTION  
The LM2991 is a low dropout adjustable negative  
regulator with a output voltage range between −3V to  
−24V. The LM2991 provides up to 1A of load current  
and features a On /Off pin for remote shutdown  
capability.  
2
•
Output Voltage Adjustable from −3V to −24V,  
Typically −2V to −25V  
•
•
•
•
•
•
•
Output Current in Excess of 1A  
Dropout Voltage Typically 0.6V at 1A Load  
Low Quiescent Current  
The LM2991 uses new circuit design techniques to  
provide a low dropout voltage, low quiescent current  
and low temperature coefficient precision reference.  
The dropout voltage at 1A load current is typically  
0.6V and an ensured worst-case maximum of 1V  
over the entire operating temperature range. The  
quiescent current is typically 1 mA with a 1A load  
current and an input-output voltage differential greater  
than 3V. A unique circuit design of the internal bias  
supply limits the quiescent current to only 9 mA  
(typical) when the regulator is in the dropout mode  
(VOUT − VIN ≤ 3V).  
Internal Short Circuit Current Limit  
Internal Thermal Shutdown with Hysteresis  
TTL, CMOS Compatible ON/OFF Switch  
Functional Complement to the LM2941 Series  
APPLICATIONS  
•
•
•
Post Switcher Regulator  
Local, On-Card, Regulation  
Battery Operated Equipment  
The LM2991 is short-circuit proof, and thermal  
shutdown includes hysteresis to enhance the  
reliability of the device when inadvertently overloaded  
for extended periods. The LM2991 is available in 5-  
lead TO-220 and DDPAK/TO-263 packages and is  
rated for operation over the automotive temperature  
range of −40°C to +125°C. Mil-Aero versions are also  
available.  
Typical Application  
VOUT = VREF (1 + R2/R1)  
*Required if the regulator is located further than 6 inches from the power supply filter capacitors. A 1 μF solid  
tantalum or a 10 μF aluminum electrolytic capacitor is recommended.  
**Required for stability. Must be at least a 10 μF aluminum electrolytic or a 1 μF solid tantalum to maintain stability.  
May be increased without bound to maintain regulation during transients. Locate the capacitor as close as possible to  
the regulator. The equivalent series resistance (ESR) is critical, and should be less than 10Ω over the same operating  
temperature range as the regulator.  
1
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.  
2
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.  
Copyright © 1999–2013, Texas Instruments Incorporated  
1234567...19

中文翻译

下载PDF

LM2991SX 替代型号

型号 品牌 替代类型 描述 数据表
LM2991SX/NOPB TI

功能相似

 具有使能功能的 1A、负电压、可调节超低压降稳压器 | KTT | 5 | -40 to
LM2991S TI

功能相似

 LM2991 Negative Low Dropout Adjustable Regulator

与LM2991SX相关器件

型号 品牌 获取价格 描述 数据表
LM2991SX/NOPB TI

获取价格

 		具有使能功能的 1A、负电压、可调节超低压降稳压器 | KTT | 5 | -40 to
LM2991SX-NOPB TI

获取价格

 		LM2991 Negative Low Dropout Adjustable Regulator
LM2991T NSC

获取价格

 		Negative Low Dropout Adjustable Regulator
LM2991T TI

获取价格

 		LM2991 Negative Low Dropout Adjustable Regulator
LM2991T/LB03 NSC

获取价格

 		IC VREG 3 V-24 V ADJUSTABLE NEGATIVE LDO REGULATOR, 1 V DROPOUT, ZFM5, TO-220, 5 PIN, Adju
LM2991T/LB03 TI

获取价格

 		Negative Low Dropout Adjustable Regulator
LM2991T/LF03 TI

获取价格

 		具有使能功能的 1A、负电压、可调节超低压降稳压器 | NDH | 5
LM2991T/NOPB NSC

获取价格

 		IC VREG 3 V-24 V ADJUSTABLE NEGATIVE LDO REGULATOR, 1 V DROPOUT, PSFM5, STRAIGHT, TO-220,
LM2991T/NOPB TI

获取价格

 		Negative Low Dropout Adjustable Regulator
LM2991T-1 NSC

获取价格

 		IC VREG 2 V-25 V ADJUSTABLE NEGATIVE LDO REGULATOR, 0.8 V DROPOUT, PSFM5, Adjustable Negat

与LM2991SX相关文章

您还可以找


热门产品
PCB打样/小批量
铝基板
BOM智能配单
PCBA制造
钣金
精密CNC
模具注塑
薄膜开关
精选活动
PCBA打样特惠
四六层板品质升级
铝基板品质升级
一体化电子制造
DFM下载
服务支持
企业认证
产品展示
工厂展示
工艺能力
积分商城
关于捷配
捷配简介
企业文化
公司动态
人才招聘
联系我们
帮助中心
下单流程
付款流程
开票流程
常见问题
全球PCB制造服务专线 400-613-0088

工作时间：9:00-21:00

CEO邮箱：ceo@jiepei.com

投诉邮箱：tousu@jiepei.com

捷配网-微信公众号 微信公众号
捷配网-微信公众号 抖音公众号
资质认证：
合作快递：
支付方式：
Copyright © 2024 Jiepei.com Inc. All Rights Reserved. 版权所有:杭州捷配信息科技有限公司 浙公网安备 33010502006866号 浙ICP备10014259号-119 营业执照ICP证