Infineon Technologies IFX1763 宽输入范围低噪音 LDO 稳压器

英飞凌 IFX54441 宽输入范围低噪音 LDO 稳压器是微功率、低压差稳压器,采用紧凑的 SMD 封装。这些器件能够提供 300mA 的输出电流,压差仅为 270mV。30μA 的低静态电流使其成为电池供电系统的理想选择。低输出噪音是 IFX54441 的一项关键特性。增加一个 0.01μF 的外部旁路电容器后,在 10Hz 到 100kHz 的带宽上 输出噪音值降至 24μVRMS。小至 3.3μF 的输出电容器可令 IFX54441 稳压器保持稳定。可使用小型陶瓷电容器,无需用到很多其他稳压器所需的串联电阻。

特性

  • Low noise down to 24μVRMS (BW = 10Hz to 100kHz)
  • 300mA Current capability
  • 30μA Low quiescent current
  • 1.8V to 20V Wide input voltage range
  • 2.5% Output voltage accuracy (over full temperature and load range)
  • 270mV Low dropout voltage
  • < 1μA Very low shutdown current
  • No protection diodes needed
  • 3.3V Fixed output voltage
  • Adjustable version with output from 1.22V to 20V
  • Stable with ≥ 3.3μF output capacitor
  • Stable with aluminium, tantalum or ceramic capacitors
  • Reverse battery protection
  • No reverse current
  • Overcurrent and overtemperature protected
  • DSO-8 Exposed pad and TSON-10 exposed pad packages
  • Green product (RoHS compliant)

应用

  • Microcontroller supply
  • Battery-powered systems
  • Noise sensitive instruments
  • Radar applications
  • Image sensors

Block Diagrams

发布日期: 2015-04-13 | 更新日期: 2023-07-27