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SE5509B

Part Number	SE5509B
Manufacturer	Seaward Electronics
Description	300mA Low Power Low Noise LDO CMOS Voltage Regulator
Published	Dec 2, 2009
Detailed Description	300mA Low Power Low Noise LDO CMOS Voltage Regulator Description The SE5509B series of fixed output low dropout linear r...
Datasheet	SE5509B PDF File

Overview

300mA Low Power Low Noise LDO CMOS Voltage Regulator Description The SE5509B series of fixed output low dropout linear regulators are designed for portable battery powered applications, which require low power consumption, low noise environment, 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 SE5509B has been designed to be used with low cost capacitors and requires a minimum output capacitor of 1.
0μF.
The output voltages range from 1.
3V to 4.
4V in 100mV increments.
Standard voltage versions are 1.
5, 1.
8, 2.
5, 2.
8, 3.
0, and 3.
3V.
The SE5509B is characterized for operation from -40 C o SE5509B Features ¾ ¾ ¾ ¾ ¾ ¾ ¾ ¾ ¾ ¾ ¾ Typical 110mV Dropout Voltage at 150mA.
Fast Enable Turn-On Time of 20μs (Typ.
) Excellent Line and Load Regulation.
High Accuracy Output Voltage of 3%.
Ultra-Low Ground Current at 35μA (Typ.
) Disable Current Less than 0.
01μA (Typ.
) Over Current and thermal Protection.
No Reverse Current.
ESD rating is 2.
5KV(HBM).
Standard SOT-23-5L and TSOP-5 Package.
100% Lead (Pb)-Free Application ¾ ¾ ¾ ¾ ¾ ¾ USB removable devices MPEG4 devices Wireless LAN’s Hand-Held Instrumentation.
Portable DVD players Digital camera to 125 C, o junction temperarure.
Pin Configuration Ordering Information www.
DataSheet4U.
com SE5509B _ __ Pin (1=>5): G: VIN/GND/EN/BYPASS/VOUT Package: L: SOT-23-5L / TSOP-5 Output Voltage: A: VOUT = 3.
3V B: VOUT = 2.
8V C: VOUT = 2.
5V D: VOUT = 1.
8V E: VOUT = 1.
5V F: VOUT = 3.
0V Block Diagram Revision 5/4/2009 Preliminary and all contents are subject to change without prior notice © Seaward Electronics Inc.
, 2006.
• www.
seawardinc.
com.
cn • Page 1 300mA Low Power Low Noise LDO CMOS Voltage Regulator Ordering/Marking Information Package SOT-23-5L / TSOP-5 (Top View) VIN GND ENABLE 1 2 3 4 BYPASS 5 VOUT SE5509B Ordering Information 3.
3V 2.
8V 2.
5V 1.
8V 1.
5...

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