MP2040 datasheet(3/12 Pages) MPS

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MP2040 –FAST TRANSIENT RESPONSE, 3A VERY LOW DROPOUT LINEAR REGULATOR

MP2040 Rev.1.0

www.MonolithicPower.com

9/21/2010

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

ELECTRICAL CHARACTERISTICS

VIN = 1.5V, VBIAS = 3.6V, VOUT = 1.2V, COUT = 1µF, CIN = 0.1µF, TA = +25°C, unless otherwise noted.

Parameter

Symbol Condition

Min

Typ

Max

Units

VIN Operating Voltage

1.1

5.5

VBIAS Operating Voltage

IOUT = 2A

3.3

5.5

VBIAS Operating Current

3.5

0.5

0.51

0.52

FB Regulation Voltage

-40

°C ≤ TA ≤ +85°C

0.495

0.51

0.525

Dropout Voltage

IOUT = 3A, VBIAS = 3.6V

150

VIN Line Regulation

IOUT = 1mA,

VIN = 1.5 to 5V

VBIAS = 5V VOUT = 1.2V

VBIAS Line Regulation

IOUT = 1mA,

VBIAS = 3.6V to 5.5V VOUT = 1.2V

VIN = 1.5V

Load Regulation

IOUT = 1mA to 1A

0.001

%/mA

PSRR (VIN)

VIN > VOUT + 0.5V, COUT = 4.7µF,

VIN(AC) = 100mV, f = 100kHz

VB=5V

Power Good Threshold

440

Power Good Delay

µs

Current Limit

(5)

3.6

Soft Start

BYPASS=open

280

µs

Power Good Voltage

Isink=230µA

0.39

EN Input High Voltage

1.5

EN Input Low Voltage

0.8

EN Input Bias Current

VEN = 1.2V

–1

µA

Thermal Protection

135

°C

Thermal Protection Hysteresis

°C

Notes:

5) Guaranteed by Designer.

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