TLV70311DBVR屬于集成電路（IC）的線性+開關(guān)穩(wěn)壓器。由美國德州儀器公司制造生產(chǎn)的TLV70311DBVR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，而且要超出某個最小量，并且在工作時會將輸入端的任何多余電壓轉(zhuǎn)換為熱量。對于大多數(shù)應用而言，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噪聲高度敏感的應用。

1 Features

1? Very Low Dropout:

– 37 mV at IOUT = 50 mA, VOUT = 2.8 V

– 75 mV at IOUT = 100 mA, VOUT = 2.8 V

– 220 mV at IOUT = 300 mA, VOUT = 2.8 V

? 2% Accuracy

? Low IQ: 35 μA

? Fixed-Output Voltage Combinations Possible

From 1.2 V to 4.8 V

? High PSRR: 68 dB at 1 kHz

? Stable With Effective Capacitance of 0.1 μF

? Thermal Shutdown and Overcurrent Protection

? Packages: 5-Pin SOT-23

2 Applications

? Wireless Handsets

? Smart Phones

? ZigBee? Networks

? Bluetooth? Devices

? Li-Ion Battery-Operated Handheld Products

? WLAN and Other PC Add-on Cards

3 Description

The TLV703 series of low-dropout (LDO) linear

regulators are low quiescent current devices with

excellent line and load transient performance. These

LDOs are designed for power-sensitive applications.

A precision band-gap and error amplifier provides

overall 2% accuracy. Low output noise, very high

power-supply rejection ratio (PSRR), and low-dropout

voltage make this series of devices ideal for a wide

selection of battery-operated handheld equipment. All

device versions have thermal shutdown and current

limit for safety.

Furthermore, these devices are stable with an

effective output capacitance of only 0.1 μF. This

feature enables the use of cost-effective capacitors

that have higher bias voltages and temperature

derating. The devices regulate to specified accuracy

with no output load.

The TLV703 series of LDO linear regulators are

available in a 5-pin SOT-23 package.