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Numéro de référence | AAT1110 | ||
Description | Fast Transient 800mA Step-Down Converter | ||
Fabricant | AAT | ||
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1 Page
AAT1110
Fast Transient 800mA Step-Down Converter
General Description
Features
SwitchReg™
The AAT1110 SwitchReg™ is a member of
AnalogicTech's Total Power Management IC™
(TPMIC™) product family. It is a 1.4MHz step-
• VIN Range: 2.7V to 5.5V
• VOUT Fixed or Adjustable from 0.6V to VIN
• 27µA No Load Quiescent Current
down converter with an input voltage range of 2.7V
• Output Current Up to 800mA
to 5.5V and output as low as 0.6V. Its low supply
• 1.4MHz Switching Frequency
current, small size, and high switching frequency
• 120µs Soft Start
make the AAT1110 the ideal choice for portable
• Fast Load Transient
applications.
• Over-Temperature Protection
The AAT1110 is available in either a fixed version
with internal feedback or a programmable version
with external feedback resistors. It can deliver up
to 800mA of load current while maintaining a low
27µA no load quiescent current. The 1.4MHz
• Current Limit Protection
• 100% Duty Cycle Low-Dropout Operation
• <1µA of Shutdown Current
• SC70JW-8 Package
• Temperature Range: -40°C to +85°C
switching frequency minimizes the size of external
components while keeping switching losses low.
The AAT1110 feedback and control delivers excel-
lent load regulation and transient response with a
Applications
small output inductor and capacitor.
The AAT1110 is designed to maintain high efficien-
cy throughout the operating range and provides
fast turn-on time.
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Cellular Phones
Digital Cameras
Handheld Instruments
Microprocessor / DSP Core / IO Power
The AAT1110 is available in a space-saving
• PDAs and Handheld Computers
2.0x2.1mm SC70JW-8 package and is rated over
• USB Devices
the -40°C to +85°C temperature range.
Typical Application (Fixed Output Voltage)
VIN
C2
4.7μF
U1
AAT1110
3 VIN
LX 4
1 EN
OUT 2
5 AGND PGND 7
8 PGND PGND 6
L1
4.7μH
VO
C1
22μF
1110.2006.04.1.0
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Pages | Pages 19 | ||
Télécharger | [ AAT1110 ] |
No | Description détaillée | Fabricant |
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