November 2007

Rev 3

1/12

12

L6933H1.2

High performance 2A ULDO linear regulator with Soft Start

Features

Applications

Description

The L6933H1.2 ultra low drop output linear

regulator operates from 2 V to 14 V and is able to

support output current up to 2 A. Designed with

an interna

l 50 m

Ω N-channel MOSFET, it can be

used for on board DC-DC conversions saving in

real estate, list of components, low noise

generation and power dissipation. L6933H1.2 is

available as adjustable version from 1.2 V to 5 V

with a voltage regulation accuracy of 1 %.

A Soft Start function allows the device to smoothly

increase the Output Voltage at the start-up,

avoiding overshoot. Inhibit function is provided.

The upper current limit is fixed at 2.5 A to control

the current in short circuit condition within ± 8 %.

The current is sensed in the power MOS in order

to limit the power dissipation.

The device is also provided with a thermal shut

down that limits the internal temperature at

150 °C with a histeresys of 20 °C.

HSOP8

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Figure 1.

Typical operating circuit

Table 1. Device summary

Order codes

Package

Packaging

L6933H1.2

HSOP8

Tube

L6933H1.2TR

HSOP8

Tape and reel