DataSheetWiki


AAT2120 fiches techniques PDF

Advanced Analogic Technologies - 500mA Low Noise Step-Down Converter

Numéro de référence AAT2120
Description 500mA Low Noise Step-Down Converter
Fabricant Advanced Analogic Technologies 
Logo Advanced Analogic Technologies 





1 Page

No Preview Available !





AAT2120 fiche technique
SwitchRegTM
www.DataSheet4U.com
General Description
The AAT2120 SwitchReg is a 1.8MHz step-down con-
verter with an input voltage range of 2.7V to 5.5V and
output as low as 0.6V. Its low supply current, small size,
and high switching frequency make the AAT2120 the
ideal choice for portable applications.
The AAT2120 delivers up to 500mA of load current, while
maintaining a low 45μA no load quiescent current. The
1.8MHz switching frequency minimizes the size of exter-
nal components, while keeping switching losses low. The
AAT2120 feedback and control delivers excellent load
regulation and transient response with a small output
inductor and capacitor.
The AAT2120 maintains high efficiency throughout the
load range. The AAT2120’s unique architecture produces
reduced ripple and spectral noise. Over-temperature and
short-circuit protection safeguard the AAT2120 and sys-
tem components from damage.
The AAT2120 is available in a Pb-free, 8-pin, 2x2mm
STDFN package and is rated over the -40°C to +85°C
temperature range.
PRODUCT DATASHEET
AAT2120
500mA Low Noise Step-Down Converter
Features
• VIN Range: 2.7V to 5.5V
• VOUT Range: 0.6V to VIN
• Up to 500mA Output Current
• Up to 96% Efficiency
• Low Noise Light Load Mode
• 45μA Typical Quiescent Current
• 1.8MHz Switching Frequency
• Soft-Start Control
• Over-Temperature and Current Limit Protection
• 100% Duty Cycle Low-Dropout Operation
• <1μA Shutdown Current
• Small External Components
• Ultra-Small STDFN22-8 Package
• Temperature Range: -40°C to +85°C
Applications
• Bluetooth® Headsets
• Cellular Phones
• Digital Cameras
• Handheld Instruments
• Micro Hard Disk Drive
• Portable Music Players
• USB Devices
Typical Application
VIN
C1
4.7µF
AAT2120
VP LX
VIN
EN FB
GND PGND
VO = 1.8V
L1
3.0µH
R1
118kΩ
500mA
R2
59kΩ
C2
4.7µF
2120.2008.02.1.2
www.analogictech.com
1

PagesPages 19
Télécharger [ AAT2120 ]


Fiche technique recommandé

No Description détaillée Fabricant
AAT2120 Step-Down Converter Skyworks
Skyworks
AAT2120 500mA Low Noise 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