TL720M05QKVURQ1集成電路（IC）的線性+開關(guān)穩(wěn)壓器規(guī)格書PDF中文資料

TL720M05QKVURQ1屬于集成電路（IC）的線性+開關(guān)穩(wěn)壓器。由德州儀器制造生產(chǎn)的TL720M05QKVURQ1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(wú)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。

1 Features

? AEC-Q100 qualified for automotive applications:

– Temperature grade 1: –40°C to +125°C, TA

– Junction temperature: –40°C to +150°C, TJ

? Input voltage range:

– Legacy chip: 5.5V to 42V (45V absolute max)

– New chip: 3.0V to 40V (42V absolute max)

? Maximum output current: 500mA (new chip)

? Output voltage accuracy:

– Legacy chip: ±2.0 (across line, load, and

temperature)

– New chip: ±1.15 (across line, load, and

temperature)

? Low dropout voltage:

– Legacy chip: 500mV (max) at 300mA

– New chip: 400mV (max) at 315mA

? Low quiescent current:

– Legacy chip: 100μA (typ) at IOUT = 1mA

– New chip: 17μA (typ) at light loads

? Excellent line transient response (new chip):

– ±2 VOUT deviation during cold-crank

– ±2 VOUT deviation (1V/μs VIN slew rate)

? Stable with a 2.2μF or larger capacitor (new chip)

? Reverse-polarity protection (legacy chip)

? Packages:

– 3-pin TO-252 (KVU)

– 3-pin DDPAK/TO-263 (KTT)

– 20-pin HTSSOP (PWP) (legacy chip)

2 Applications

? Reconfigurable instrument clusters

? Body control modules (BCM)

? Always-on battery-connected applications:

– Automotive gateways

– Remote keyless entries (RKE)

3 Description

The TL720M05-Q1 is a low-dropout linear regulator

designed to connect to the battery in automotive

applications. The device has an input voltage range

extending to 40V (new chip). This range allows

the device to withstand transients (such as load

dumps) that are anticipated in automotive systems.

With only a 17μA quiescent current at light loads,

the device is designed for powering always-on

components. Examples of such components are

microcontrollers (MCUs) and controller area network

(CAN) transceivers in standby systems.

The device (new chip) has a state-of-the-art transient

response that allows the output to quickly react to

changes in load or line. For example, during coldcrank

conditions. Additionally, the device has a novel

architecture that minimizes output overshoot when

recovering from dropout. During normal operation, the

device has a tight DC accuracy of ±1.15 over line,

load, and temperature (new chip).

The device also incorporates a number of

internal circuits for protection against overload and

overtemperature. The legacy chip also provides

protection against reverse polarity.

The TL720M05-Q1 is available in thermally

conductive packaging to allow the device to efficiently

transfer heat to the circuit board.