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SP6223EK-L Datasheet(PDF) 4 Page - Sipex Corporation |
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SP6223EK-L Datasheet(HTML) 4 Page - Sipex Corporation |
4 / 14 page 4 Date: 6/15/06 Rev AB SP6222/6223 50/150mA CMOS Linear Regulators © 2006 Sipex Corporation General Overview The SP6222 and SP6223 are CMOS LDOs designed to meet a broad range of low voltage applications that require accuracy and ease of use. The SP6222 offers a 50mA output current while the SP6223 offers an output current of 150mA. The SP6222 is available in a 2.5V or 3.0V fixed output along with an adjustable output version. The SP6223 is offered in an adjustable output only. These LDOs have a minimum input voltage of only 1.6V and a maximum input voltage of 4.5V. The output voltage can be programmed to as low as 0.9V and have a maximum dropout voltage rating of 100mV for the SP6222 and 300mV for the SP6223. Both devices are equipped with an enable (EN) input for very low current (10nA typical) shutdown mode. Enable / Shutdown Operation The SP6222/6223 is turned on by providing 1.6V or greater to the EN pin. To place the device into shutdown pull the EN pin below 0.4V. If this feature is not required connect EN to input supply to always enable the device whenever power is applied. Input / Output Capacitor The SP6222/6223 is designed to operate using very small ceramic capacitors. The minimum input and output capacitor value for stable operation is 1.0μF. The output capacitor value may be increased without limit to improve transient response. Place these capacitors as close as possible to the device. Bypass (BYP) Capacitor The fixed output versions offer a BYP pin to decouple the bandgap reference. Connecting an external 10nF capacitor from BYP to GND can reduce output noise. If output noise is not a concern the BYP pin may be left open. When a bypass capacitor is used the turn on time is slower. See the following turn on time plots for various BYP capacitor values. The adjustable output version does not offer this BYP input. Adjustable Regulator The output of the device can be programmed to a specific voltage by using two external resistors connected to the ADJ pin (see Typical Application Circuit for Adjustable output). The resistors set APPLICATION INFORMATION |
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