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LM26480 PDF预览

LM26480

更新时间: 2024-11-23 12:09:43
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德州仪器 - TI /
页数 文件大小 规格书
37页 6798K
描述
Compatible with Advanced Applications Processors and FPGAs, 2 LDOs for Powering Internal Processor Functions and I/Os

LM26480 数据手册

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LM26480  
www.ti.com  
SNVS543I JANUARY 2008REVISED MAY 2013  
LM26480 Externally Programmable Dual High-Current Step-Down DC/DC and Dual Linear  
Regulators  
Check for Samples: LM26480  
1
FEATURES  
DESCRIPTION  
The LM26480 is  
a
multi-functional Power  
2
Compatible with Advanced Applications  
Processors and FPGAs  
Management Unit, optimized for low-power digital  
applications. This device integrates two highly  
efficient 1.5A step-down DC/DC converters and two  
300 mA linear regulators. The LM26480 is offered in  
a tiny 4 x 4 x 0.8mm WQFN-24 pin package.  
2 LDOs for Powering Internal Processor  
Functions and I/Os  
Precision Internal Reference  
Thermal Overload Protection  
Current Overload Protection  
24-lead 4 × 4 × 0.8mm WQFN Package  
KEY SPECIFICATIONS  
Step-Down DC/DC Converter (Buck)  
1.5A output current  
External Power-On-Reset Function for Buck1  
and Buck2  
VOUT from:  
Buck1 : 0.8V–2.0V @ 1.5A  
Buck2 : 1.0V–3.3V @ 1.5A  
Up to 96% efficiency  
Undervoltage Lock-Out Detector to Monitor  
Input Supply Voltage  
Note: LM26480Q is an Automotive-Grade  
Product that is AECQ-100 Grade 1 Qualified.  
±3% FB voltage accuracy  
2 MHz PWM switching frequency  
APPLICATIONS  
PWM - PFM automatic mode change under  
low loads  
Core Digital Power  
Applications Processors  
Peripheral I/O Power  
Automatic soft start  
Linear Regulators (LDO)  
VOUT of 1.0V–3.5V  
±3% FB voltage accuracy  
300 mA output current  
25 mV (typ) dropout  
1
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.  
2
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.  
Copyright © 2008–2013, Texas Instruments Incorporated  

LM26480 替代型号

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