AME8818 datasheet(7/14 Pages) AMETHERM

Part #	AME8818

Description	Low Dropout 300mA CMOS Regulator

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Manufacturer	AMETHERM [AMETHERM Circuit Protection Thermistors]

Direct Link	http://www.ametherm.com

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7 / 14 page

AME

Rev.A.01

7

AME8818

Low Dropout

300mA CMOS Regulator

n Electrical Specifications

V

IN = VOUT(NOM) + 1V or VIN = 2.5V, if VOUT(NOM) <= 2.0V, IOUT = 1mA, VEN = VIN and COUT = CIN = 1µF, Typical values at

T

A = 25

oC, unless otherwise noted.

Note 1: V

IN(MIN)=VOUT+VDROP or VIN(min) =2.5V, whichever is greater.

Note 2: For V

OUT below 2.0V, Dropout Voltage is the input to output differential.

Note 3: For V

OUT below 1.5V, the minimun input. Voltage is 3.0V.

Parameter

Symbol

Min

Typ Max Units

Input Voltage

VIN

(Note1)

5.5

V

Output V oltage Accuracy

V OUT,ACC

-2

2

%

Output Voltage Range

VOUT

1.2

4.5

V

Output Current

IOUT

300

mA

Quiescent Current

IQ

70

100

µA

(Note2)

370

500

280

400

230

330

VIN(min)≦VIN≦VIN(max)

-0.4

0.1

0.4

VIN(min)≦VIN≦VIN(max)

-0.2

0.03

0.2

VOUT+0.3V≦VIN≦VIN(max)

-0.1

0.01

0.1

-0.003

0.002

-0.005

0.004

-0.015

0.01

Output Current Limit

ILIM

330

500

mA

Shutdown Current

ISHDN

5

10

µA

Enable High (enabled)

VEN(HI)

1.4

VIN

V

Enable Low (shutdown)

VEN(LO)

0

0.4

V

Enable Pin Current (enabled)

IEN

0.1

1

µA

TSHDN

150

TRS

130

Dropout Voltage

dB

OC

VIN(min) ≦ VIN ≦ 5.5V

Thermal Shutdown

Temperature

VEN = VIN

Shutdown, temperature increasing

Restore, temperature decreasing

%/mA

%/V

mV

Output Voltage Line

Regulation

[(

∆V

OUT / ∆ VIN)x100%] /

V OUT

REGLINE

60

PSRR

Power Supply Ripple

Rejection

Output Voltage Load

Regulation

[(

∆V

OUT / VOUT) x 100%]

/

∆I

OUT

REGLOAD

VDROP

VOUT≧3.3V

Test Conditions

2.0V < VOUT ≦ 2.5V

2.6V ≦ VOUT ≦ 3.0V

VIN(min) ≦ VIN ≦ 5.5V

VOUT = 0.8 x VOUT(NOM)

VOUT ≧ 3.1V

VIN = 5.5V, IOUT = 1mA

f = 1KHz, IOUT = 100mA, Cout=1µF(Note3)

VEN = 0V, VIN(min) ≦ VIN ≦ 5.5V

1mA≦IOUT≦300mA

VOUT ≦ 2.0V

IOUT = 300mA

2.5V≦VOUT<3.3V

1.2V≦VOUT<2.5V

1.2V≦V OUT<2.5V

2.5≦ VOUT<3.3V

3.3V≦ VOUT <4.5V

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