PG-SCT595

Type

Package

Marking

IFX54211MB V33

PG-SCT595

51

Data Sheet

2

Rev. 1.0, 2015-08-26

High PSRR Low Dropout Linear Voltage Regulator

IFX54211MB V33

1Overview

Features

•

Output Voltage: 3.3 V

•

Output Voltage Accuracy of ±3 %

•

Output Currents up to 150 mA

•

Extended Input Voltage Operating Range of 2.7 V to 18 V

•

Enable Functionality

•

Low Dropout Voltage: typ. 290mV

•

Very Low Quiescent Current: typ. 50 µA

•

Very Low Shutdown Current: typ. 0.01 µA

•

Very High PSRR: typ. 63dB at 10 kHz

•

Output Current Limitation

•

Short Circuit protected

•

Overtemperature Shutdown

•

Wide Temperature Range From -40 °C up to 125 °C

•

Green Product (RoHS compliant)

Functional Description

The IFX54211MB V33 is a monolithic integrated fixed linear voltage regulator for load currents up to 150 mA. The

IC regulates an input voltage

V

IFX54211MB V33 is especially designed for applications requiring very low standby currents, e.g. with a

permanent connection to a power supply, e.g. like a preregulating DCDC converter. Besides the very low

quiescent current the current consumption of the device remains low also for higher load currents thanks to its

PMOS powerstage. The IFX54211MB V33 combines in an ideal way a 150 mA current capability with extremely

small package outlines, low dropout capability and high Power Supply Ripple Rejection PSRR over a wide

frequency range. The component can be enabled/disabled via the Enable input. The device is available in a very

small surface mounted PG-SCT595 package and is designed for the harsh environment of industrial applications.

Therefore it is protected against overload, short circuit and overtemperature conditions by the implemented output

current limitation and the overtemperature shutdown circuit. The IFX54211MB V33 can be also used in all other

applications requiring a stabilized 3.3 V voltage.

Choosing External Components

The input capacitor

C

for the stability of the regulating circuit. One strength of the device is that stability is guaranteed already for very