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SE5218FLG-LF Datasheet(PDF) 1 Page - Seaward Electronics Inc. |
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SE5218FLG-LF Datasheet(HTML) 1 Page - Seaward Electronics Inc. |
1 / 7 page Revision 12/5/2008 Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., 2005. • www.seawardinc.com.cn • Page 1 500mA CMOS LDO Voltage Regulator (Preliminary) SE5218 Description The SE5218 series of fixed output low dropout linear regulators are designed for portable battery powered applications, which require low noise environment, fast enable response time, and low dropout voltage. Each device contains a bandgap voltage reference, an error amplifier, a PMOS power transistor, and resistors for setting output voltage, and current limit and temperature limit protection circuits. The SE5218 has been designed to be used with low cost capacitors and requires a minimum output capacitor of 1.0μF. Standard voltage versions are 1.5, 1.8, 2.5, 2.8, 3.0, and 3.3V. Pin Configuration Features Typical 175mV Dropout Voltage at 150mA. Fast Enable Turn-On Time of 20μs (Typ.) Excellent Line and Load Regulation. High Accuracy Output Voltage of 2%. Ultra-Low Ground Current at 65μA (Typ.) Disable Current Less than 0.3μA (Typ.) Thermal Protection. Standard SOT-23-5L Packages. Applications USB removable devices MPEG4 devices Wireless LAN’s Hand-Held Instrumentation. Portable DVD players Digital camera Application Diagram |
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