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基于TPS79501-Q1的汽车类单路输出 LDO、500mA、可调节电压(1.2V 至 5.5V)、低噪声...

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发表于 2018-12-18 16:46:45 | 显示全部楼层 |阅读模式
  基于TPS79501-Q1的汽车类单路输出 LDO500mA、可调节电压(1.2V 5.5V)、低噪声、高 PSRR
  描述
  The TPS79501-Q1 low-dropout (LDO), low-power linear voltage regulator features high power-supply rejection ratio (PSRR), ultralow noise, fast start-up, and excellent line and load transient responses in a small outline SON package. The device is stable with a small 1-µF ceramic capacitor on the output. The TPS79501-Q1 uses an advanced, proprietary BiCMOS fabrication process to yield extremely low dropout voltages (for example, 110 mV at 500 mA). The device achieves fast start-up times (approximately 50 µs with a 0.001-µF bypass capacitor) while consuming very low quiescent current (265 µA, typical). Moreover, when the device is placed in standby mode, the supply current is reduced to less than 1 µA. The TPS79501-Q1 exhibits approximately 33 µVRMS of output voltage noise at 3-V output with a 0.1-µF bypass capacitor. Applications with analog components that are noise-sensitive, such as portable RF electronics, benefit from the high-PSRR and low-noise features, as well as from the fast response time.
  特性
  Qualified for Automotive Applications
  500-mA Low-Dropout Regulator With Enable
  High PSRR (50 dB at 10 kHz)
  Ultralow Noise (33 µVRMS, TPS79501-Q1)
  Fast Start-Up Time (50 µs)
  Stable With a 1-µF Ceramic Capacitor
  Excellent Load/Line Transient Response
  Low Dropout Voltage (110 mV at Full Load, TPS79501-Q1)
  APPLICATIONS
  RF: VCOs, Receivers, ADCs
  Audio
Bluetooth®, Wireless LAN
TI产品现货库存在线购买:https://www.iczoom.com/brand/509-c-1-20.html
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