LMZ22010TZSLASHNOPB中文资料德州仪器数据手册PDF规格书

1 Features

1• Integrated Shielded Inductor

• Simple PCB Layout

• Frequency Synchronization Input (350 kHz to 600

kHz)

• Current Sharing Capability

• Flexible Start-up Sequencing Using External Soft-

Start, Tracking and Precision Enable

• Protection Against Inrush Currents and Faults

Such as Input UVLO and Output Short Circuit

• Junction Temperature Range –40°C to 125°C

• Single Exposed Pad and Standard Pinout for Easy

Mounting and Manufacturing

• Fully Enabled for WEBENCH® Power Designer

• Pin Compatible With LMZ22008/06,

LMZ12010/08/06, LMZ23610/08/06, and

LMZ13610/08/06

• Electrical Specifications

– 50-W Maximum Total Output Power

– Up to 10-A Output Current

– Input Voltage Range 6 V to 20 V

– Output Voltage Range 0.8 V to 6 V

– Efficiency up to 92%

• Performance Benefits

– High Efficiency Reduces System Heat

Generation

– Low Radiated Emissions (EMI) Tested to

EN55022

– Only 7 External Components

– Low Output Voltage Ripple

– No External Heat Sink Required

– Simple Current sharing for Higher Current

Applications

NOTE: EN 55022:2006, +A1:2007, FCC Part 15 Subpart B,

tested on Evaluation Board with EMI configuration.

2 Applications

• Point-of-load Conversions from 12-V Input Rail

• Time-Critical Projects

• Space Constrained and High Thermal

Requirement Applications

• Negative Output Voltage Applications

See AN-2027 SNVA425

3 Description

The LMZ22010 SIMPLE SWITCHER® power module

is an easy-to-use step-down DC-DC solution capable of driving up to 10-A load. The LMZ22010 is available

in an innovative package that enhances thermal

performance and allows for hand or machine

soldering.

The LMZ22010 can accept an input voltage rail

between 6 V and 20 V and can deliver an adjustable

and highly accurate output voltage as low as 0.8 V.

The LMZ22010 only requires two external resistors and external capacitors to complete the power

solution.

The LMZ22010 is a reliable and robust design with

the following protection features: thermal shutdown,

programmable input under-voltage lockout, output

over-voltage protection, short-circuit protection, output current limit, and allows startup into a pre-biased

output. The sync input allows synchronization over

the 314- to 600-kHz switching frequency range and

up to 6 modules can be connected in parallel for

higher load currents.