描述 Description

The TC1014, TC1015 and TC1185 are high accuracy (typically ±0.5%) CMOS upgrades for older (bipolar) low dropout regulators such as the LP2980. Designed specifically for battery-operated systems, the devices’ CMOS construction eliminates wasted ground current, significantly extending battery life. Total supply current is typically 50 μA at full load (20 to 60 times lower than in bipolar regulators). Key features for the devices include ultra low-noise operation (plus optional Bypass input), fast response to step changes in load, and very low dropout voltage, typically 85 mV (TC1014), 180 mV (TC1015) and 270 mV (TC1185) at full load. Supply current is reduced to 0.5 μA (max) and VOUT falls to zero when the shutdown input is low. The devices also incorporate both over-temperature and over-current protection. The TC1014, TC1015 and TC1185 are stable with an output capacitor of only 1μF and have a maximum output current of 50 mA, 100 mA and 150 mA, respectively. For higher output versions, see the TC1107, TC1108 and TC1173 (IOUT = 300 mA) data sheets.

特性 Features

Extremely Low Supply Current (50 μA typical.)
Very Low Dropout Voltage
Minimum 50 mA, 100 mA and 150 mA Output Current (TC1014, TC1015 and TC1185, Respectively)
High Output Voltage Accuracy
Standard or Custom Output Voltages
Power-Saving Shutdown Mode
Reference Bypass Input for Ultra Low-Noise Operation
Over-Current and Over-Temperature Protection
Pin Compatible Upgrades for Bipolar Regulators

簡(jiǎn)介

TC1185屬于集成電路（IC）的線性+開關(guān)穩(wěn)壓器。由制造生產(chǎn)的TC1185穩(wěn)壓器 - 線性線性穩(wěn)壓器用于提供穩(wěn)定的輸出電壓，無論負(fù)載電流、輸入電壓或環(huán)境因素如何變化，這些輸出電壓通常都要保持不變。它們的工作原理要求輸入電壓維持在高于所需的輸出電壓，而且要超出某個(gè)最小量，并且在工作時(shí)會(huì)將輸入端的任何多余電壓轉(zhuǎn)換為熱量。對(duì)于大多數(shù)應(yīng)用而言，雖然這種穩(wěn)壓器的效率低于開關(guān)模式的穩(wěn)壓器，但它們通常更適合對(duì)噪聲高度敏感的應(yīng)用。