LM2937IMP-12/NOPB 原装 低压差稳压器

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LM2937IMP-12/NOPB 原装 低压差稳压器的描述:

The LM2937 is a positive voltage regulator capable of supplying up to 500 mA of load current. The use of a PNP power transistor provides a low dropout voltage characteristic. With a load current of 500 mA the minimum input to output voltage differential required for the output to remain in regulation is typically 0.5 V (1-V ensured maximum over the full operating temperature range). Special circuitry has been incorporated to minimize the quiescent current to typically only 10 mA with a full 500-mA load current when the input to output voltage differential is greater than 3 V.


The LM2937 requires an output bypass capacitor for stability. As with most low dropout regulators, the ESR of this capacitor remains a critical design parameter, but the LM2937 includes special compensation circuitry that relaxes ESR requirements. The device is stable for all ESR below 3 Ω. This allows the use of low ESR chip capacitors.


Ideally suited for automotive applications, the LM2937 will protect itself and any load circuitry from reverse battery connections, two-battery jumps, and up to 60-V/?50-V load dump transients. Familiar regulator features such as short circuit and thermal shutdown protection are also built in.

 

LM2937IMP-12/NOPB 原装 低压差稳压器 的特征:

Fully Specified for Operation Over ?40°C to 125°C

Output Current in Excess of 500 mA

Output Trimmed for 5% Tolerance Under all Operating Conditions

Typical Dropout Voltage of 0.5 V at Full Rated Load Current

Wide Output Capacitor ESR Range, up to 3 Ω

Internal Short Circuit and Thermal Overload Protection

Reverse Battery Protection

60-V Input Transient Protection

Mirror Image Insertion Protection

 

LM2937IMP-12/NOPB 原装 低压差稳压器 的技术参数:

产品种类

低压差稳压器

RoHS

安装风格

SMD/SMT

输出电压

12 V

输出电流

500 mA

输出端数量

1 Output

极性

Positive

静态电流

10 mA

输入电压范围

13 V to 26 V

输出类型

Fixed

工作温度

- 40 C to + 125 C

回动电压

500 mV

系列

LM2937

回动电压(max

0.25 V at 50 mA, 1 V at 500 mA

Ib - 输入偏流

2 mA

线路调整率

36 mV

负载调节

12 mV

工作电源电流

2 mA

 

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型号/规格

LM2937IMP-12/NOPB

品牌/商标

TI(德州仪器)

封装

SOT-223-4

批号

23+

包装量

1000