LMZ10503

更新时间： 2025-07-29 12:27:39

品牌	Logo	应用领域
德州仪器 - TI		电源电路
页数	文件大小	规格书
28页	1985K
描述
LMZ10503 3A SIMPLE SWITCHERÂ® Power Module with 5.5V Maximum Input Voltage

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LMZ10503 数据手册

LMZ10503

www.ti.com

SNVS641H –JANUARY 2010–REVISED APRIL 2013

LMZ10503 3A SIMPLE SWITCHER® Power Module with 5.5V Maximum Input Voltage

Check for Samples: LMZ10503

FEATURES

PERFORMANCE BENEFITS

•

Integrated Shielded Inductor

•

Operates at High Ambient Temperatures

•

Flexible Startup Sequencing using External

Soft-Start, Tracking, and Precision Enable

High Efficiency up to 96% Reduces System

Heat Generation

•

Protection Against In-Rush Currents and

Faults Such as Input UVLO and Output Short-

Circuit

•

Low Radiated Emissions (EMI) Complies with

EN55022 Class B Standard

(2)

Low Output Voltage Ripple of 10 mV Allows

for Powering Noise-Sensitive Transceiver and

Signaling ICs

•

-40°C to +125°C Junction Temperature

Operating Range

Single Exposed pad and Standard Pinout for

Easy Mounting and Manufacturing

•

Fast Transient Response for Powering FPGAs

and ASICs

Pin-to-Pin Compatible with

–

LMZ10504 (4A/20W max)

LMZ10505 (5A/25W max)

ELECTRICAL SPECIFICATIONS

•

15W Maximum Total Output Power

Up to 3A Output Current

•

Fully Enabled for WEBENCH® and Power

Designer

Input Voltage Range 2.95V to 5.5V

Output Voltage Range 0.8V to 5V

APPLICATIONS

±1.63% Feedback Voltage Accuracy Over

Temperature

•

Point-of-Load Conversions from 3.3V and 5V

Rails

•

Efficiency up to 96%

•

Space Constrained Applications

Extreme Temperatures/no Air Flow

Environments

DESCRIPTION

The LMZ10503 SIMPLE SWITCHER® power module

is a complete, easy-to-use DC-DC solution capable of

driving up to a 3A load with exceptional power

conversion efficiency, output voltage accuracy, line

and load regulation. The LMZ10503 is available in an

•

Noise Sensitive Applications (i.e. Transceiver,

Medical)

innovative

package

that

enhances

thermal

performance and allows for hand or machine

soldering.

Figure 1. PFM 7 Pin Package

10.16 x 13.77 x 4.57 mm (0.4 x 0.39 x 0.18 in)

(1)

θ_JA= 20°C/W, θ_JC= 1.9°C/W

RoHS Compliant

(1) θ _JAmeasured on a 2.25” x 2.25” (5.8 cm x 5.8 cm) four layer

board, with one ounce copper, thirty six 10mil thermal vias, no

air flow, and 1W power dissipation. Refer to PCB Layout

Diagrams or Evaluation Board Application Note: AN-2022

(SNVA421).

(2) EN 55022:2006, +A1:2007, FCC Part 15 Subpart B: 2007.

See Table 9 and layout for information on device under test.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...28

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LMZ10503 替代型号

型号	品牌	替代类型	描述	数据表
TPS54218	TI	功能相似	2.95 V to 6 V Input 2 A Output 2MHz Synchronous Step Down Switcher With Integrated FETs (S
LMZ10505EXT	TI	功能相似	5A SIMPLE SWITCHERÂ® Power Module with 5.5V M
LMZ10504EXT	TI	功能相似	4A SIMPLE SWITCHER Power Module With 5.5-V Maximum Input Voltage for Demanding and Rugged

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型号	品牌	获取价格	描述	数据表
LMZ10503EXT	NSC	获取价格	3A SIMPLE SWITCHER® Power Module with 5.5V Ma
LMZ10503EXT	TI	获取价格	3A SIMPLE SWITCHER Power Module With 5.5-V Maximum Input Voltage for Demanding and Rugged
LMZ10503EXTTZ	NSC	获取价格	3A SIMPLE SWITCHER® Power Module with 5.5V Ma
LMZ10503EXTTZ/NOPB	TI	获取价格	3A SIMPLE SWITCHER Power Module With 5.5-V Maximum Input Voltage for Demanding and Rugged
LMZ10503EXTTZE	NSC	获取价格	3A SIMPLE SWITCHER® Power Module with 5.5V Ma
LMZ10503EXTTZE/NOPB	TI	获取价格	3A SIMPLE SWITCHER Power Module With 5.5-V Maximum Input Voltage for Demanding and Rugged
LMZ10503EXTTZX	NSC	获取价格	3A SIMPLE SWITCHER® Power Module with 5.5V Ma
LMZ10503EXTTZX/NOPB	TI	获取价格	3A SIMPLE SWITCHER Power Module With 5.5-V Maximum Input Voltage for Demanding and Rugged
LMZ10503EXT_15	TI	获取价格	3A SIMPLE SWITCHER Power Module With 5.5-V Maximum Input Voltage for Demanding and Rugged
LMZ10503TZ-ADJ	NSC	获取价格	3A SIMPLE SWITCHER® Power Module with 5.5V Ma

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