SM72238TDE-3.3/NOPB集成电路（IC）的线性+开关稳压器规格书PDF中文资料

SM72238TDE-3.3/NOPB属于集成电路（IC）的线性+开关稳压器。由美国德州仪器公司制造生产的SM72238TDE-3.3/NOPB稳压器 - 线性线性稳压器用于提供稳定的输出电压，无论负载电流、输入电压或环境因素如何变化，这些输出电压通常都要保持不变。它们的工作原理要求输入电压维持在高于所需的输出电压，而且要超出某个最小量，并且在工作时会将输入端的任何多余电压转换为热量。对于大多数应用而言，虽然这种稳压器的效率低于开关模式的稳压器，但它们通常更适合对噪声高度敏感的应用。

1FEATURES

2• Renewable Energy Grade

• High-Accuracy Output Voltage

• Ensured 100mA Output Current

• Extremely Low Quiescent Current

• Low Dropout Voltage

• Extremely Tight Load and Line Regulation

• Very Low Temperature Coefficient

• Use as Regulator or Reference

• Needs Minimum Capacitance for Stability

• Current and Thermal Limiting

• Stable With Low-ESR Output Capacitors

(10mΩ to 6Ω)

DESCRIPTION

The SM72238 is a micropower voltage regulator with

very low quiescent current (75μA typ.) and very low

dropout voltage (typ. 40mV at light loads and 380mV

at 100mA). It is ideally suited for use in battery-

powered systems. Furthermore, the quiescent current

of the SM72238 increases only slightly in dropout, prolonging battery life.

The SM72238 is available in the surface-mount D-

Pak package.

Careful design of the SM72238 has minimized all

contributions to the error budget. This includes a tight

initial tolerance (.5% typ.), extremely good load and

line regulation (.05% typ.) and a very low output

voltage temperature coefficient, making the part

useful as a low-power voltage reference.