MP2011A - 24V, 150mA, LOW QUIESCENT CURRENT LINEAR REGULATOR

MP2011A Rev. 1.0

www.MonolithicPower.com

10

2/19/2016

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

© 2016 MPS. All Rights Reserved.

OPERATION

The MP2011A is a linear regulator that supplies

power to systems with high voltage batteries. It

includes a wide 2.5V to 24V input range, low

dropout voltage and low quiescent supply

current.

The MP2011A provides wide variety of fixed

output voltage option (if request): 1.8V, 1.9V,

2.3V, 2.5V, 3.0V, 3.3V, 3.45V, 5.0V; and also

provides the output adjustable option (from

1.215V to 15V).

The output adjustable version has an output

that is adjustable from 1.215V to 15V with a

simple

resistor

divider.

It

uses

external

feedback, allowing the user to set the output

voltage with an external resistor divider. The

typical FB pin voltage is 1.215V.

The regulator output current is internally limited

and the device is protected against over-load

and over-temperature conditions.

The peak output current is limited to around

270mA,

which

exceeds

the

150mA

recommended continuous output current.

When the junction temperature is too high, the

thermal sensor sends a signal to the control

logic that will shutdown the IC. The IC will

restart when the temperature has sufficiently

cooled.

The maximum power output current is a

function of the package’s maximum power

dissipation for a given temperature.

The maximum power dissipation is dependent

on the thermal resistance of the case and the

circuit

board,

the

temperature

difference

between the die junction and the ambient air,

and the rate of air flow. The GND pin and

Exposed Pad must be connected to the ground

plane for proper dissipation.

UVLO

Vreference

EA

IN

EN

OUT

FB

GND

For fixed output

version only

Figure 1: Functional Block Diagram