MP2013A - 40V, 150mA, LOW-QUIESCENT CURRENT LINEAR REGULATOR

MP2013A Rev. 1.03

www.MonolithicPower.com

13

10/16/2017

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OPERATION

The MP2013A is a linear regulator that supplies

power to systems with high-voltage batteries. It

includes a wide 2.5V to 40V input range, low-

dropout

voltage

and

low-quiescent-supply

current.

The MP2013A provides a wide variety of fixed,

output-voltage options: 1.8V, 1.9V, 2.3V, 2.5V,

3.0V, 3.3V, 3.45V, and 5.0V; and it provides an

adjustable output option (from 1.215V to 15V).

The adjustable output option delivers 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 voltage is 1.215V.

The IC enters shutdown mode when EN is low.

In shutdown mode, the pass transistor, control

circuitry, reference, and all biases turn off,

reducing the supply current to <3µA. Connect

EN to IN for automatic startup.

The regulator output current is internally limited.

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 shuts down the IC. The IC restarts

when the temperature has cooled sufficiently.

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 and exposed

pad must be connected to the ground plane for

proper dissipation.

UVLO

Vreference

EA

VIN

EN

VOUT

FB

GND

For fixed output

version only

Figure 1: Functional Block Diagram