Datasheet > LX7176

LX7176

更新时间： 2023-12-06 20:08:44

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
12页	863K
描述
The LX7176 is a 3A step-down regulator with integrated MOSFETs placed in a space saving QFN12 2mm

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LX7176 数据手册

LX7176

1.65MHz 3A Synchronous Buck Converter

Production Datasheet

Description

Features

The LX7176 is a 3A step-down regulator with integrated

MOSFETs placed in a space saving QFN12 2mm x 2mm

package for today’s mobile devices. It uses an ultra fast,

constant frequency hysteretic control method and a

high switching frequency to minimize external filter

components while maintaining excellent regulation. The

LX7176 has a fixed 0.6V reference, Power Good, and

Enable pins. The LX7176 operates from 3.0V to 5.5V

rails.

 0-3A Step-down Regulator

 Operational Input Supply Voltage Range:

3.0V-5.5V (short durations to 6.5V)

 Integrated PMOS and NMOS

 Hysteretic Control Offers Best Transient

Response

 PWM Switching at a Constant 1.65MHz

 Input Under-voltage and Over-voltage

Protection

Cycle-by-cycle current limiting protects against over-

current conditions. The LX7176 operates in hiccup mode

to further enhance the robustness of the converter for

heavy over-load or short-circuit faults and it

automatically recovers once the fault clears.

 Enable and Power Good Function

 Internal Soft-start

 Cycle-by-Cycle Over Current Protection

 Hiccup Mode Protects Against Short Circuit

Faults

 RoHS Compliant & Halogen Free

Thermal protection shuts down the regulator under

over-temperature conditions. Over voltage conditions

will immediately shut off the output to protect against

permanent damage.

Applications



High Performance HDD

LCD TV

Notebook/Netbook

Server and Workstations

Video Cards

PoE Powered Devices Smart Phone

Figure 1: Typical Application Diagram with 0.9V VOUT

Rev. 1.1a 1/28/2014

Microsemi

Analog Mixed Signal Group

Page 1

One Enterprise Aliso Viejo, CA 92656 USA 1-800-713-4113, 1-949-380-6100, fax 1-949-215-4996

12 3 4 5 6 7...12

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