MP20249 – DUAL, ULTRA-LOW NOISE, HIGH PSRR 200mA LINEAR REGULATOR

MP20249 Rev1.0

www.MonolithicPower.com

4

12/15/2010

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© 2010 MPS. All Rights Reserved.

ELECTRICAL CHARACTERISTICS

Notes:

6) Load Regulation=

()

OUT (MAX )

OUT (MIN)

OUT I

OUT I

OUT NOM

VV

(%)

V

⎡⎤

⎡

⎤

⎣⎦

⎣

⎦

−

×

7) Dropout Voltage is defined as the input to output differential when the output voltage drops 100mV below its nominal value.

8) Line Regulation=

()

IN(MAX )

IN(MIN)

OUT V

OUT V

IN(MIN)

OUT(NOM)

IN MAX

VV

(% / V)

VV

V

⎡⎤

⎡

⎤

⎣⎦

⎣

⎦

−

×

⎡⎤

−×

⎣⎦

Parameter

Symbol

Condition

Min

Typ

Max

Units

Input voltage range

2.3

6.0

V

Maximum Output Current

Continuous

200

mA

Output Voltage Accuracy

-1

+1

%

Current Limit

220

270

440

mA

Ground Current

No Load

125

µA

Dropout Voltage

(6)

60

mV

75

mV

Line regulation

(7)

-0.03

0.03

%/V

Load regulation

(8)

0.001

%/mA

EN Input High Threshold

1.2

V

EN Input Low Threshold

0.4

V

EN Input Bias Current

100

300

nA

Shutdown Supply Current

EN1 = EN2 = GND

0.12

1

µA

Under-voltage Lockout

2.25

V

Under-voltage

Lockout

Hysteresis

160

mV

Thermal Shutdown Temperature

150

°C

Thermal Shutdown Hysteresis

15

°C

Output Voltage Noise

100Hz to 1kHz,

16

Output Voltage AC PSRR

65

dB

65

dB

55

dB

Active Pull-Down Resistance

80

Ω