产品概述 返回TOPQOr嘉泰姆

The CXSD62437 CXSD62438 is a low supply current, high PSRR, and 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 CXSD62437 CXSD62438 is from 2.50V to 5.50V. The over-current protection limit is set at 550mA typical. An over- temperature protection circuit is built-in in the CXSD62437 CXSD62438 to prevent thermal overload. These power saving features make the CXSD62437 CXSD62438 ideal for use in the battery-powered applications such as notebook computers, cellular phones, and PDA’s. The CXSD62437 CXSD62438 has two modes of operation. When the SET pin is connected to ground, its output is a pre-set value: 1.50V~5.00V. 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 CXSD62437 CXSD62438 comes in a space saving SOT-23-5 package.

   产品特点 返回TOPQOr嘉泰姆

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

„ Guaranteed 300mA Output Current QOr嘉泰姆

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

„ PSRR=65dB @ 120Hz QOr嘉泰姆

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

„ Two Modes of Operation QOr嘉泰姆

---- Fixed Mode: 1.50V~5.00V QOr嘉泰姆

Adjustable Mode: from 1.25V to 5.50V QOr嘉泰姆

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

„ Low Output Noise at 238μVRMS QOr嘉泰姆

„ Stable with low cost ceramic capacitorsQOr嘉泰姆

   应用范围 返回TOPQOr嘉泰姆

„ Notebook Computers QOr嘉泰姆

„ Cellular Phones QOr嘉泰姆

„ PDAs QOr嘉泰姆

„ Digital still Camera and Video Recorders QOr嘉泰姆

„ Hand-Held Devices QOr嘉泰姆

„ Audio CodecQOr嘉泰姆

   技术规格书（产品PDF) 返回TOP QOr嘉泰姆

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