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LM26484 データシート(PDF) 1 Page - Texas Instruments

部品番号 LM26484
部品情報  LM26484 Power Management Unit
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メーカー  TI1 [Texas Instruments]
ホームページ  http://www.ti.com
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LM26484 データシート(HTML) 1 Page - Texas Instruments

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LM26484
www.ti.com
SNVS573F – SEPTEMBER 2008 – REVISED MARCH 2013
LM26484 Power Management Unit
Check for Samples: LM26484
1
FEATURES
APPLICATIONS
2
Step-Down DC/DC Converter (Buck)
Digital Cores and I/Os (FPGAs, ASICs, DSPs)
3.0–5.5V Input Range
Automotive Infotainment
Externally Adjustable VOUT:
Set-Top-Box
Bucks 1 & 2: 0.8V–3.5V @ 2A
Cordless Phone Base Station
180° Phase Shift Between Bucks Clocks
Networking Router
2 MHz PWM Switching Frequency
Printers
±1% feedback Voltage Accuracy
DESCRIPTION
Automatic Soft Start
The LM26484 is a multi-function, configurable Power
Current Overload Protection
Management Unit. This device integrates two highly
PWM/PFM efficiency Modes Available
efficient 2.0A Step-Down DC/DC converters, one
LDO Controller, a POR (Power On Reset) circuit, and
Linear Regulator (LDO) Controller
thermal overload protection circuitry. All regulator
3.0V–5.5V Input Range
output voltages are externally adjustable. The LDO
Externally Adjustable VOUT
controller is a low-voltage NMOS voltage regulator.
The LM26484 is offered in a 5 x 4 x 0.8 mm WQFN-
±1.5% Feedback Voltage Accuracy
24 pin package.
Regulated to Low VIN - Low VOUT LI-LO (Low
Input Low Output) NFET Operation
Input to the LI-LO Configuration, Can Be
Post Regulated When Supply is Regulated
by Buck2
Up to 1000 mA Output Current by Selection
of External FET
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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