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CM2835 Datasheet(PDF) 5 Page - List of Unclassifed Manufacturers

Part No. CM2835
Description  300mA CMOS LDO
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Maker  ETC1 [List of Unclassifed Manufacturers]
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CM2835 Datasheet(HTML) 5 Page - List of Unclassifed Manufacturers

   
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CM2835
300mA CMOS LDO
2006/01/23 Rev1.2
Champion Microelectronic Corporation
Page 5
DETAILED DESCRIPTION
The CM2835 family of CMOS regulators contain a PMOS pass transistor, voltage reference, error amplifier, over-current
protection, thermal shutdown.
The P-channel pass transistor receives data from the error amplifier, over-current protection, and thermal protection circuits.
During normal operation, the error amplifier compares the output voltage to a precision reference. Over-current and Thermal
shutdown circuits become active when the junction temperature exceeds 150℃, or the current exceeds 300mA. During thermal
shutdown, the output voltage remains low. Normal operation is restored when the junction temperature drops below 120℃.
The CM2835 switches from voltage mode to current mode when the load exceeds the rated output current. This prevents
over-stress.
EXTERNAL CAPACITOR
The CM2835 is stable with a Low ESR output capacitor to ground of 1.0μF or greater. It can keep stable even with higher ESR
capacitors. A second capacitor is recommended between the input and ground to stabilize VIN. The input capacitor should be
larger than 0.1μF to have a beneficial effect. All capacitors should be placed in close proximity to the pins. A “quiet” ground
termination is desirable.
TYPICAL CHARACTERISTICS


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