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LM26480 数据表(PDF) 1 Page - Texas Instruments

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部件名 LM26480
功能描述  Compatible with Advanced Applications Processors and FPGAs, 2 LDOs for Powering Internal Processor Functions and I/Os
Download  37 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

LM26480 数据表(HTML) 1 Page - Texas Instruments

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LM26480
www.ti.com
SNVS543I – JANUARY 2008 – REVISED 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
Management Unit, optimized for low-power digital
Processors and FPGAs
applications.
This
device
integrates
two
highly
2 LDOs for Powering Internal Processor
efficient 1.5A step-down DC/DC converters and two
Functions and I/Os
300 mA linear regulators. The LM26480 is offered in
a tiny 4 x 4 x 0.8mm WQFN-24 pin package.
Precision Internal Reference
Thermal Overload Protection
KEY SPECIFICATIONS
Current Overload Protection
Step-Down DC/DC Converter (Buck)
24-lead 4 × 4 × 0.8mm WQFN Package
1.5A output current
External Power-On-Reset Function for Buck1
VOUT from:
and Buck2
Buck1 : 0.8V–2.0V @ 1.5A
Undervoltage Lock-Out Detector to Monitor
Input Supply Voltage
Buck2 : 1.0V–3.3V @ 1.5A
Note: LM26480Q is an Automotive-Grade
Up to 96% efficiency
Product that is AECQ-100 Grade 1 Qualified.
±3% FB voltage accuracy
2 MHz PWM switching frequency
APPLICATIONS
PWM - PFM automatic mode change under
Core Digital Power
low loads
Applications Processors
Automatic soft start
Peripheral I/O Power
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.
Copyright © 2008–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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