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参数资料
| 型号： | LP2981A-18YZQR |
| 厂商： | Texas Instruments, Inc. |
| 元件分类： | 圆形连接器 |
| 英文描述： | Circular Connector; Body Material:Aluminum; Series:PT06; Number of Contacts:19; Connector Shell Size:14; Connecting Termination:Solder; Circular Shell Style:Straight Plug; Circular Contact Gender:Socket; Insert Arrangement:14-19 |
| 中文描述： | 100马超差稳压器具有关断 |
| 文件页数： | 12/20页 |
| 文件大小： | 346K |
| 代理商： | LP2981A-18YZQR |
SLVS521B JULY 2004 REVISED OCTOBER 2004
12
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
capacitors
input capacitor (C
in
)
A minimum value of 1 F (over the entire operating temperature range) is required at the input of the LP2981.
In addition, this input capacitor should be located within 1 cm of the input pin and connected to a clean analog
ground. There is no Equivalent Series Resistance (ESR) requirement for this capacitor, and the capacitance
can be increased without limit. A good quality ceramic or tantalum capacitor can be used.
output capacitor (C
out
)
As a PNP regulator, the LP2981 requires the output capacitor to meet both a minimum capacitance and ESR
value. Required ESR values as a function of load current are provided for various output voltages, load currents,
and capacitances (see Figures 1–4).
Minimum C
out
: 3.3
μ
F (can be increased without limit to improve transient response stability margin)
ESR range: see Figures 1–4
Figure 4. 5-V/3.3-
μ
F ESR Curves
Figure 5. 5-V/10-
μ
F ESR Curves
Figure 6. 3-V/3.3-
μ
F ESR Curves
Figure 7. 3-V/10-
μ
F ESR Curves
E
Load Current mA
E
Load Current mA
E
Load Current mA
E
Load Current mA
相关PDF资料 |
PDF描述 |
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| LP2981A-125YZQR | Circular Connector; MIL SPEC:MIL-C-26482, Series I, Solder; Body Material:Aluminum; Series:PT06; Number of Contacts:19; Connector Shell Size:14; Connecting Termination:Solder; Circular Shell Style:Straight Plug; Body Style:Straight |
| LP2981-50YZUR | 100-MA ULTRA DROPOUT REGULATOR WITH SHUTDOWN |
| LP2981-33YZUR | Circular Connector; MIL SPEC:MIL-C-26482, Series I, Crimp; Body Material:Aluminum; Series:PT00; Number of Contacts:15; Connector Shell Size:14; Connecting Termination:Crimp; Circular Shell Style:Wall Mount Receptacle |
| LP2981A-50YZUR | 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 |
| 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 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LP2981A-28DBVR | 功能描述:低压差稳压器 - LDO 100-mA 0.75% Tolerance RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| LP2981A-28DBVRE4 | 功能描述:低压差稳压器 - LDO 100-mA 0.75% Tolerance RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| LP2981A-28DBVRG4 | 功能描述:低压差稳压器 - LDO Sgl Output 100mA Fixed(2.8V) Shutdown RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| LP2981A-28DBVT | 功能描述:低压差稳压器 - LDO 100-mA 0.75% Tolerance RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| LP2981A-28DBVTE4 | 功能描述:低压差稳压器 - LDO 100-mA 0.75% Tolerance RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
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