PDF《适合便携式设备的双通道、200mA、低IQ 、低压降稳压器》

TLV710 Series TLV711 Series www.

ti.com.cn ZHCS452A CJULY 2010CREVISED AUGUST

2010 适合便携式设备的双通道、200mA、低IQ 、低压降稳压器 1特性 说明 2? 超低的压降: TLV710 和TLV711 系列双通道、低压降 (LDO) 线性 稳压器是具有卓越的线路输入电压及负载瞬态响应性能 C 150mV(在IOUT =200mA 和VOUT = 2.8V 时) 的低静态电流器件. 这些 LDO 专门针对功耗敏感型应 C 75mV(在IOUT =100mA 和VOUT = 2.8V时) 用而设计. 这些器件在整个温度范围内提供了2% 的C40mV(在IOUT =50mA 和VOUT = 2.8V时) 典型准确度. ? 在整个温度范围内可提供 2% 的准确度 ? 低IQ:每个稳压器为 35μA TLV711系列提供了一种有源下拉电路,以对输出进行 ? 可提供多种固定输出电压组合:1.2V至4.8V 快速放电. ? 高PSRR:70dB(在1kHz 频率下) 此外,TLV711-D 器件系列还在 EN 引脚上布设了下拉 ? 可在采用 0.1μF 的有效电容时保持稳定(1) 电阻器. 这种设计有助于在信号驱动 EN 引脚处于一 ? 过流和热保护 种微弱、不确定状态(例如:在启动期间有可能为三态 ? 用于每个输出的专用 VREF 最大限度地降低了串扰 的处理器 GPIO)时停用器件. 该下拉电阻器可将至 ? 采用1.5mm x 1.5mm SON-6 封装 EN 引脚的电压拉低至 0V,从而停用器件. (1) 请参见 应用信息部分中的 输入和输出电容器要求 TLV710 和TLV711系列采用 1.5mm x 1.5mm SON-6 应用 封装,而且非常适合于手持式应用. ? 无线头戴式耳机、智能手机、PDA ? MP3 播放器及其他手持式产品 图1. 典型应用电路

1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright ? 2010, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not English Data Sheet: SBVS142A necessarily include testing of all parameters. TLV710 Series TLV711 Series ZHCS452A CJULY 2010CREVISED AUGUST

2010 www.ti.com.cn This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. ORDERING INFORMATION(1) PRODUCT VOUT (2) TLV710xxyyqwwwz XX is nominal output voltage of channel

1 (for example

18 = 1.8V). TLV711xxyyqwwwz YY is nominal output voltage of channel

2 (for example

28 = 2.8V). Q is optional. Use U for devices with EN pin pull-up resistor, and D for devices with EN pin pull-down resistor. WWW is package designator. Z is package quantity. Use R for reel (3000 pieces), and T for tape (250 pieces). (1) For the most current package and ordering information see the Package Option Addendum at the end of this document, or visit the device product folder on www.ti.com. (2) Output voltages from 1.2V to 4.8V in 50mV increments are available through the use of innovative factory OTP programming;

minimum order quantities may apply. Contact factory for details and availability. ABSOLUTE MAXIMUM RATINGS(1) At TJ = C40°C to +125°C (unless otherwise noted). VALUE MIN MAX UNIT IN C0.3 +6.0 V Voltage(2) EN C0.3 VIN + 0.3 V OUT C0.3 +6.0 V Current OUT Internally limited A Output short-circuit duration Indefinite s Operating junction, TJ C55 +150 °C Temperature Storage, Tstg C55 +150 °C Human body model (HBM) QSS 009-105 (JESD22-A114A)