SE5509 Datasheet, PDF(3/7 Page) Seaward Electronics Inc. – 300mA Low Power Low Noise LDO CMOS Voltage Regulator

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SE5509 Datasheet, PDF (3/7 Pages) Seaward Electronics Inc. – 300mA Low Power Low Noise LDO CMOS Voltage Regulator

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300mA Low Power Low Noise

LDO CMOS Voltage Regulator

SE5509

Electrical Characteristics (Continued)

VIN = 5V; CIN = 2.2Î¼F; COUT = 2.2Î¼F; IOUT = 10mA; TJ = 25Â°C; unless otherwise noted

Symbol

Parameter

Conditions

Min Typ Max Unit

Output Voltage

ÎVOUT/ÎT

Temperature

Coefficient

Note 4

0.1

-- mV/Â°C

VIN â VOUT

Dropout Voltage (6)

(VOUT>3.0V)

IOUT = 10mA

IOUT = 150mA

IOUT = 300mA

200

350

Thermal Protection Temperature

-- 150

TPROTECTION Thermal Protection

Â°C

Protection Hysterisys

PSRR

Ripple Rejection f =10kHz,IOUT=50mA,Cbypass=0.1Î¼F

Quiescent Current

VEN = 0.4V

VEN = VIN

0.1

Î¼A

Enable Input

Voltage Raising, Output Turns On, Logic High 1.6

VTH(EN)

Threshold Voltage Voltage Falling, Output Turns Off, Logic Low

0.4

ILIMIT

Current Limit

600

Note 1: Exceeding the absolute maximum rating may damage the device.

Note 2: The device is not guaranteed to function outside its operating rating.

Note 3: The maximum allowable power dissipation at any TA (ambient temperature) is calculated using: PD(MAX) =

(TJ(MAX) â TA)/ÎJA. Exceeding the maximum allowable power dissipation will result in excessive die temperature,

and the regulator will go into thermal shutdown. See âThermal Considerationâ section for details

Note 4: Output voltage temperature coefficient is the worst case voltage change divided by the total temperature range.

Note 5: Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested

for load regulation in the load range from 0.1mA to 300mA. Changes in output voltage due to heating effects are

covered by the thermal regulation specification.

Note 6: Dropout voltage is defined as the input to output differential at which the output voltage drops 100mV below its

nominal value measured at 0.8V differential.

Revision 12/5/2008

Preliminary and all contents are subject to change without prior notice

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