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Numéro de référence | AAT1230-1 | ||
Description | 18V 100mA Step-Up Converter | ||
Fabricant | Advanced Analogic Technologies | ||
Logo | |||
General Description
The AAT1230/1230-1 is a high frequency, high effi-
ciency boost converter capable of 18V maximum
output voltage. The internal power switch can deliv-
er 100mA load current. It is the ideal power solution
to power OLED, LCD, and CCD applications oper-
ating from a single cell lithium-ion battery.
Hysteretic control provides up to 2MHz switching
frequency and fast response to load transients with
small, low-cost external components. The fully
integrated control IC simplifies the design while
reducing the total PCB footprint. The
AAT1230/1230-1 offers a true load disconnect fea-
ture which isolates the load from the power source
when EN/SET is pulled low. This eliminates leak-
age current and maintains zero voltage at the out-
put while disabled.
The output voltage can be dynamically set by acti-
vating one of two reference levels (FB1 or FB2)
through the SEL logic pin. Optionally, AnalogicTech’s
Simple Serial Control™ (S2Cwire™) single wire
interface provides dynamic programmability across
a wide output voltage range through the EN/SET pin.
The AAT1230/1230-1 are available in a Pb-free,
thermally-enhanced 16-pin 3x4mm TDFN low-pro-
file package or a Pb-free 12-pin TSOPJW package.
Typical Application
VBAT
3.6V
Enable/Set
Select
C1
2.2µF
VP
VIN LIN
AAT1230/
AAT1230-1
SW
PGND
FB1
EN/SET
FB2
SEL GND
AAT1230/1230-1
18V 100mA Step-Up Converter
Features
SwitchReg™
• VIN Range: 2.7V to 5.5V
• Maximum Output: 18V @ 100mA
• True Load Disconnect
• Dynamic Voltage Control Options
• Hysteretic Control
— No External Compensation Components
— Excellent Load Transient Response
— High Efficiency at Light Load
• Up to 2MHz Switching Frequency
• Ultra-Small Inductor and Capacitors
• Integrated Low RDS(ON) MOSFET Switches
• Up to 85% Efficiency
• <1µA Shutdown Current
• Integrated Soft Start
• Two Turn-On Time Options
— AAT1230: TSS = 0.35ms
— AAT1230-1: TSS = 3.5ms
• Cycle-by-Cycle Current Limit
• Short-Circuit, Over-Temperature Protection
• Available in TSOPJW-12 or TDFN34-16
Package
• -40°C to +85°C Temperature Range
Applications
• CCD Bias Circuit
• Digital Still Cameras
• LCD Bias Circuit
• Mobile Handsets
• MP3 Players
• OLED Displays
• PDAs and Notebook PCs
L1
2.2µH
D1
Schottky 18V @ 100mA
R1
78.7kΩ
R2
562Ω
R3
4.99kΩ
C2
2.2µF, 25V
1230.2006.10.1.4
1
www.DataSheet.in
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Pages | Pages 21 | ||
Télécharger | [ AAT1230-1 ] |
No | Description détaillée | Fabricant |
AAT1230-1 | 18V 100mA Step-Up Converter | Advanced Analogic Technologies |
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