DataSheetWiki


AAT1151 fiches techniques PDF

AAT - DC/DC Converter

Numéro de référence AAT1151
Description DC/DC Converter
Fabricant AAT 
Logo AAT 





1 Page

No Preview Available !





AAT1151 fiche technique
AAT1151
850kHz 700mA Synchronous Buck DC/DC Converter
General Description
The AAT1151 SwitchReg™ is a member of
AnalogicTech's Total Power Management IC™
(TPMIC™) product family. The step-down switching
converter is ideal for applications where high effi-
ciency is required over the full range of output load
conditions. The 2.7V to 5.5V input voltage range
makes the AAT1151 ideal for single-cell lithium-
ion/polymer battery applications. Capable of more
than 700mA with internal MOSFETs, the current-
mode controlled IC provides high efficiency using
synchronous rectification. Fully integrated compen-
sation simplifies system design and lowers external
parts count.
The device operates at a fixed 850kHz switching fre-
quency and enters PFM mode for light load current
to maintain high efficiency across all load conditions.
The AAT1151 is available in MSOP-8 and QFN33-16
packages and is rated over the -40°C to +85°C tem-
perature range.
Features
SwitchReg
• VIN Range: 2.7V to 5.5V
• Up to 95% Efficiency
• High Initial Accuracy ±1%
• 110mRDS(ON) Internal Switches
• <1µA Shutdown Current
• 850kHz Switching Frequency
• Fixed VOUT or Adjustable VOUT 1.0V
• Integrated Power Switches
• Synchronous Rectification
• Current Mode Operation
• Internal Compensation
• Stable with Ceramic Capacitors
• PWM and PFM for Optimum Efficiency for All
Load Conditions
• Internal Soft Start
• Over-Temperature Protection
• Current Limit Protection
• MSOP-8 and QFN33-16 Packages
• -40°C to +85°C Temperature Range
Typical Application
www.DataSheet4U.com
Applications
• Cellular Phones
• Digital Cameras
• MP3 Players
• Notebook Computers
• PDAs
• USB-Powered Equipment
• Wireless Notebook Adapters
INPUT
10µF
100
0.1µF
VP
AAT1151
FB
ENABLE
LX
VCC
SGND
PGND
3.0µH
2x 22µF
OUTPUT
1151.2005.11.1.4
1

PagesPages 16
Télécharger [ AAT1151 ]


Fiche technique recommandé

No Description détaillée Fabricant
AAT1150 1MHz 1A Step-Down DC/DC Converter Advanced Analogic Technologies
Advanced Analogic Technologies
AAT1151 DC/DC Converter AAT
AAT
AAT1152 850kHz 1A Synchronous Buck DC/DC Converter Advanced Analogic Technologies
Advanced Analogic Technologies
AAT1153 2A Step-Down Converter Advanced Analogic Technologies
Advanced Analogic Technologies

US18650VTC5A

Lithium-Ion Battery

Sony
Sony
TSPC106

PCI Bus Bridge Memory Controller

ATMEL
ATMEL
TP9380

NPN SILICON RF POWER TRANSISTOR

Advanced Semiconductor
Advanced Semiconductor


www.DataSheetWiki.com    |   2020   |   Contactez-nous  |   Recherche