SE5218ALG-LF datasheet(3/7 Pages) SEAWARD

Part #	SE5218ALG-LF

Description	500mA CMOS LDO Voltage Regulator

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Manufacturer	SEAWARD [Seaward Electronics Inc.]

Direct Link	http://www.seawardinc.com

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Revision 12/5/2008

Preliminary and all contents are subject to change without prior notice.

500mA CMOS LDO Voltage Regulator

(Preliminary)

SE5218

Electrical Characteristics

VIN =5V; VEN=VIN; CIN = 2.2μF; COUT = 2.2μF（

Electrolytic capacitor）; IOUT = 10mA; TJ = 25°C; unless otherwise specified.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VOUT

Output Voltage

Accuracy

SE5218 – 1.5(VIN=3.3V)

SE5218 – 1.8(VIN=3.3V)

SE5218 – 2.5

SE5218 – 2.8

SE5218 – 3.0

SE5218 – 3.3

1.470

1.764

2.450

2.744

2.940

3.234

1.5

1.8

2.5

2.8

3.0

3.3

1.530

1.836

2.550

2.856

3.060

3.366

V

ΔVOUT

Line Regulation

VIN = (VOUT+1)V to 5.5V

--

1.0

--

%/V

IOUT = 10mA to

250mA

--

1.0

--

ΔVOUT

Load

Regulation

(5)

VIN = (VOUT+0.8)V

or 2.5V

IOUT = 10mA to

500mA

--

1.5

--

%

ΔVOUT/ΔT

Output Voltage

Temperature

Coefficient

Note 4

--

0.025

--

mV/°C

IOUT = 10mA

15

IOUT = 150mA

175

IOUT = 250mA

320

VIN – VOUT

Dropout

Voltage

(6)

IOUT = 400mA

600

mV

Thermal Protection Temperature

--

150

--

TPROTECTION

Thermal

Protection

Protection Hysterisys

--

20

--

°C

PSRR

Ripple

Rejection

f = 120 Hz

--

59

--

dB

VEN = 0.4V

--

0.3

--

IQ

Quiescent

Current

VEN = VIN

--

65

--

μA

Voltage Increasing, Output Turns On,

Logic High

1.6

--

VTH(EN)

Enable Input

Threshold

Voltage

Voltage Decreasing, Output Turns Off,

Logic Low

--

0.4

V

ILIMIT

Current Limit

--

800

--

mA

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