Datasheet > LMZ22003_15

LMZ22003_15

更新时间： 2024-09-15 01:13:59

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
33页	1475K
描述
3A SIMPLE SWITCHER Power Module With 20-V Maximum Input Voltage

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LMZ22003

SNVS658I –MARCH 2011–REVISED AUGUST 2015

LMZ22003 3-A SIMPLE SWITCHER Power Module With 20-V Maximum Input Voltage

1 Features

2 Applications

•

Integrated Shielded Inductor

Simple PCB Layout

•

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

Time-Critical Projects

Frequency Synchronization Input (650 kHz to 950

kHz)

Space Constrained and High Thermal

Requirement Applications

•

Flexible Start-up Sequencing Using External Soft-

Start, Tracking and Precision Enable

•

Negative Output Voltage Applications

(See AN-2027 SNVA425)

Protection Against Inrush Currents and Faults

such as Input UVLO and Output Short Circuit

3 Description

The LMZ22003 SIMPLE SWITCHER^®power module

is an easy-to-use step-down DC-DC solution capable

of driving up to 3-A load. The LMZ22003 is available

in an innovative package that enhances thermal

performance and allows for hand or machine

soldering.

•

Junction Temperature Range –40°C to 125°C

Single Exposed Pad and Standard Pinout for Easy

Mounting and Manufacturing

•

Fast Transient Response for Powering FPGAs

and ASICs

Fully Enabled for WEBENCH^®Power Designer

•

The LMZ22003 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 LMZ22003 only requires two external resistors

and three external capacitors to complete the power

solution. The LMZ22003 is a reliable and robust

design with the following protection features: thermal

shutdown, programmable input undervoltage lockout,

output overvoltage protection, short circuit protection,

output current limit, and this device allows start-up

into a prebiased output. The sync input allows

synchronization over the 650- to 950-kHz switching

frequency range.

Pin Compatible With

LMZ23605/LMZ23603/LMZ22005

•

Electrical Specifications

–

18-W Maximum Total Output Power

Up to 3-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

Device Information⁽¹⁾⁽²⁾

–

Tested To EN55022 Class B⁽¹⁾

PART NUMBER

PACKAGE

BODY SIZE (NOM)

Low Component Count, Only 5 External

Components

LMZ22003

NDW (7)

10.16 mm × 9.85 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

–

Low Output Voltage Ripple

(2) Peak reflow temperature equals 245°C. See SNAA214 for

more details.

Uses PCB as Heat Sink, No Airflow Required

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

See AN-2125 SNVA473 and layout for information on

device under test. Vin = 12 V, Vo = 3.3 V, Io = 3 A

Simplified Application Schematic

Efficiency 5-V Output at 25°C Ambient

100

LMZ22003

OUT

@ 3A

FBT

See Table

Enable

220 PF

FBB

9 VIn

22 PF

12 Vin

See Table

0.47 PF

20 Vin

OUTPUT CURRENT (A)

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

12 3 4 5 6 7...33

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与LMZ22003_15相关器件

型号	品牌	获取价格	描述	数据表
LMZ22003TZ	ROCHESTER	获取价格	SWITCHING REGULATOR, 914kHz SWITCHING FREQ-MAX, PSSO7, 13.77 X 10.16 MM, 4.57 MM HEIGHT, R
LMZ22003TZ	NSC	获取价格	IC SWITCHING REGULATOR, 914 kHz SWITCHING FREQ-MAX, PSSO7, 13.77 X 10.16 MM, 4.57 MM HEIGH
LMZ22003TZ/NOPB	ROCHESTER	获取价格	SWITCHING REGULATOR, 914kHz SWITCHING FREQ-MAX, PSSO7, 13.77 X 10.16 MM, 4.57 MM HEIGHT, R
LMZ22003TZ/NOPB	TI	获取价格	3A SIMPLE SWITCHER Power Module With 20-V Maximum Input Voltage
LMZ22003TZE/NOPB	TI	获取价格	3A SIMPLE SWITCHER Power Module With 20-V Maximum Input Voltage
LMZ22003TZX/NOPB	TI	获取价格	3A SIMPLE SWITCHER Power Module With 20-V Maximum Input Voltage
LMZ22005	TI	获取价格	5A SIMPLE SWITCHER Power Module With 20-V Maximum Input Voltage
LMZ22005	NSC	获取价格	Evaluation Board to be an easy-to-use platform to evaluate
LMZ22005_15	TI	获取价格	5A SIMPLE SWITCHER Power Module With 20-V Maximum Input Voltage
LMZ22005TZ	NSC	获取价格	5A SIMPLE SWITCHER Power Module with 20V Maximum Input Voltage

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