M3406 Ver la hoja de datos (PDF) - Unspecified

Número de pieza

componentes Descripción

Fabricante

M3406

800mA,2V-6V Input,1.5MHz Synchronous Step-Down Converter

Unspecified 

AEROSEMI

M3406 800mA ,1.5MHz Synchronous Step-Down Converter

FUNCTIONAL BLOCK DIAGRAM

EN

VIN

Slope

Compensation

OSC &

Shutdown

Control

Current

Sensor

FB

Error

Amplifier

PWM

Compartor

Current Limit

Detector

RS

PWM/PFM

Mode

Detector

Control Logic

Driver

SW

Zero Detector

GND

UVLO & Power

Good Detector

VREF

Figure 2. M3406 Block Diagram

FUNCTIONAL DESCRIPTION

The M3406 is a high performance, 800mA,

1.5MHz monolithic step-down converter. The

M3406 requires only three external power

components (CIN, COUT and L). The adjustable

version can be programmed with external

feedback to any voltage, ranging from 0.6V to

the input voltage.

At dropout operation, the converter duty cycle

increases to 100% and the output voltage tracks

the input voltage minus the RDS(ON) drop of the

high-side MOSFET.

The internal error amplifier and compensation

provides excellent transient response, load, and

line regulation. Soft start function prevents input

inrush current and output overshoot during start

up.

M3406 Rev1.0

www.aerosemi.com

Aerosemi Proprietary Information.Unauthorized Photocopy and Duplication Prohibited.

6

All Rights Reserved.

Share Link: