L4936E集成电路（IC）的线性+开关稳压器规格书PDF中文资料

L4936E属于集成电路（IC）的线性+开关稳压器。由意法半导体集团制造生产的L4936E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。

DESCRIPTION

The L4936E is a monolithic integrated dual voltage regulator with two very low dropout outputs and additional functions as power-on reset and in put voltage sense. It is designed for supplying the microcomputer controlled systems especially in automotive applications.

■ ENABLE AND SENSE INPUTS (EN, SI) PROTECTED AGAINST NEGATIVE TRANSIENTS DOWN TO -5V

■ RESET THRESHOLD ADJUSTABLE FROM 3.8 TO 4.7V

■ EXTREMELY LOW QUIESCENT CURRENT, 65µA (LESS THAN 90µA) IN STANDBY MODE

■ OPERATING DC SUPPLY VOLTAGE RANGE 5V - 28V

■ OPERATING TRANSIENT SUPPLY VOLT AGE UP TO 40V

■ HIGH PRECISION STANDBY OUTPUT VOLT

■ AGE 5V ± 1 WITH 100mA CURRENT CA PABILITY

■ OUTPUT 2 VOLTAGE 5V ± 2 WITH 400mA

■ CURRENT CAPABILITY (ADJ WIRED TO VOUT2)

■ OUTPUT 2 VOLTAGE ADJUSTABLE BY EX TERNAL VOLTAGE DIVIDER

■ OUTPUT 2 DISABLE FUNCTION FOR STANDBY MODE