300mA Low-Dropout Linear Regulators In the shutdown mode, the maximum supply current is less than 1μA. Operating voltage range of the CXSD62421 is from 2.5V to 5.5V

   产品概述 返回TOPt4N嘉泰姆

The CXSD62421 is a low supply current, low dropout linear regulator that comes in a space saving SOT-23-5 package. The supply current at no-load is 90μA. In the shutdown mode, the maximum supply current is less than 1μA. Operating voltage range of the CXSD62421 is from 2.5V to 5.5V. The over-current protection limit is set at 550mA typical. An over-temperature protection circuit is built-in in the CXSD62421 to prevent thermal overload. These power saving features make the CXSD62421 ideal for use in the battery-powered applications such as notebook computers, cellular phones, and PDA’s. The CXSD62421 has two modes of operation. When the SET pin is connected to ground, its output is a pre-set value: 1.5V~4.7V (interval =100mV), 2.84V, 3.15V, and 4.75V. There is no external component needed to decide the output voltage. When an output other than the preset value is needed, two external resistors should be used as a voltage divider. The output voltage is then decided by the resistor ratio. The CXSD62421 comes in a space saving SOT-23-5 package.

   产品特点 返回TOPt4N嘉泰姆

„ Low, 90μA No-Load Supply Current t4N嘉泰姆

„ Guaranteed 300mA Output Current t4N嘉泰姆

„ Dropout Voltage is 200mV @ 150mA Load t4N嘉泰姆

„ Over-Temperature Protection and Short-Circuit Protection t4N嘉泰姆

„ Two Modes of Operation t4N嘉泰姆

---- Fixed Mode: t4N嘉泰姆

1.5V~4.7V (interval =100mV) t4N嘉泰姆

 2.84V (CXSD62421A), t4N嘉泰姆

3.15V (CXSD62421B), t4N嘉泰姆

4.75V (CXSD62421E), t4N嘉泰姆

Adjustable Mode: from 1.25V to 5.5V t4N嘉泰姆

„ Max. Supply Current in Shutdown Mode < 1μA t4N嘉泰姆

„ Low Output Noise at 220μVRMSt4N嘉泰姆

 „ Stable with low cost ceramic capacitorst4N嘉泰姆

   应用范围 返回TOPt4N嘉泰姆

„ Notebook Computers t4N嘉泰姆

„ Cellular Phones t4N嘉泰姆

„ PDAs t4N嘉泰姆

„ Digital still Camera and Video Recorders t4N嘉泰姆

„ Hand-Held Devices t4N嘉泰姆

„ Bar Code Scannerst4N嘉泰姆

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