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参数资料
| 型号： | LP2981A-50YZUR |
| 厂商： | Texas Instruments, Inc. |
| 元件分类： | 圆形连接器 |
| 英文描述： | Circular Connector; MIL SPEC:MIL-C-26482, Series I, Crimp; Body Material:Aluminum; Series:PT00; Number of Contacts:3; Connector Shell Size:8; Connecting Termination:Crimp; Circular Shell Style:Wall Mount Receptacle |
| 中文描述： | 100马超差稳压器具有关断 |
| 文件页数： | 14/20页 |
| 文件大小： | 346K |
| 代理商： | LP2981A-50YZUR |
SLVS521B JULY 2004 REVISED OCTOBER 2004
14
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
reverse input-output voltage
An inherent diode is present across the PNP pass element of the LP2981.
VOUT
VIN
With the anode connected to the output, this diode is reverse biased during normal operation, since the input
voltage is higher than the output. However, if the output is pulled one V
BE
higher than the input, or if the input
is abruptly stepped below the output, this diode is forward biased and can cause a parasitic silicon-controlled
rectifier (SCR) to latch, resulting in current flowing from the output to the input (values in excess of 100 mA can
cause damage). Thus, to prevent possible damage to the regulator in any application where the output may be
pulled above the input, an external Schottky diode must be connected between the output and input. With the
anode on output, this Schottky limits the reverse voltage across the output and input pins to 0.3 V, preventing
the regulator’s internal diode from forward biasing.
VOUT
VIN
Schottky
LP2981
pin 4: NC
Pin 4 must be left OPEN. Do not connect anything to this pin, as it is used for post package trim.
相关PDF资料 |
PDF描述 |
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| LP2981A-33YZUR | Circular Connector; No. of Contacts:2; Series:; Body Material:Aluminum; Connector Shell Size:8; Circular Contact Gender:Socket; Circular Shell Style:Wall Mount Receptacle; Insert Arrangement:8-2 |
| LP2981A-32YZUR | Circular Connector; No. of Contacts:2; Series:; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:8; Circular Contact Gender:Socket; Circular Shell Style:Wall Mount Receptacle; Insert Arrangement:8-2 |
| LP2981A-30YZUR | PTCE 2C 2#20 SKT RECP |
| LP2981A-29YZUR | 100-MA ULTRA DROPOUT REGULATOR WITH SHUTDOWN |
| LP2981A-28YZUR | Circular Connector; No. of Contacts:18; Series:; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:14; Circular Contact Gender:Pin; Circular Shell Style:Wall Mount Receptacle; Insert Arrangement:14-18 |
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| LP2981AIBP-2.5 | 功能描述:IC REG LDO 2.5V .1A 5USMD RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:1 系列:- 稳压器拓扑结构:正，固定式 输出电压:4V 输入电压:最高 16V 电压 - 压降（标准）:0.28V @ 150mA 稳压器数量:1 电流 - 输出:150mA 电流 - 限制（最小）:- 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:5-VFBGA 供应商设备封装:5-uSMD 包装:Digi-Reel® 其它名称:LP2985AIBP-4.0DKR |
| LP2981AIBP-3.2 | 功能描述:IC REG LDO 3.2V .1A 5USMD RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:1 系列:- 稳压器拓扑结构:正，固定式 输出电压:4V 输入电压:最高 16V 电压 - 压降（标准）:0.28V @ 150mA 稳压器数量:1 电流 - 输出:150mA 电流 - 限制（最小）:- 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:5-VFBGA 供应商设备封装:5-uSMD 包装:Digi-Reel® 其它名称:LP2985AIBP-4.0DKR |
| LP2981AIBP-3.3 | 功能描述:IC REG LDO 3.3V .1A 5-MICROSMD RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:1 系列:- 稳压器拓扑结构:正，固定式 输出电压:4V 输入电压:最高 16V 电压 - 压降（标准）:0.28V @ 150mA 稳压器数量:1 电流 - 输出:150mA 电流 - 限制（最小）:- 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:5-VFBGA 供应商设备封装:5-uSMD 包装:Digi-Reel® 其它名称:LP2985AIBP-4.0DKR |
| LP2981AIBPX-2.5 | 功能描述:IC REG LDO 2.5V .1A 5MICROSMD RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:1 系列:- 稳压器拓扑结构:正，固定式 输出电压:4V 输入电压:最高 16V 电压 - 压降（标准）:0.28V @ 150mA 稳压器数量:1 电流 - 输出:150mA 电流 - 限制（最小）:- 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:5-VFBGA 供应商设备封装:5-uSMD 包装:Digi-Reel® 其它名称:LP2985AIBP-4.0DKR |
| LP2981AIBPX-3.2 | 功能描述:IC REG LDO 3.2V .1A 5MICROSMD RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:1 系列:- 稳压器拓扑结构:正，固定式 输出电压:4V 输入电压:最高 16V 电压 - 压降（标准）:0.28V @ 150mA 稳压器数量:1 电流 - 输出:150mA 电流 - 限制（最小）:- 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:5-VFBGA 供应商设备封装:5-uSMD 包装:Digi-Reel® 其它名称:LP2985AIBP-4.0DKR |
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