DATA SHEET
AAT1230
18V, 100mA Step-Up Converter
General Description
Features
•
•
•
•
•
The AAT1230/1230-1 is a high frequency, high efficiency
boost converter capable of 18V maximum output volt-
age. The internal power switch can deliver 100mA load
current. It is the ideal power solution to power OLED,
LCD, and CCD applications operating from a single cell
lithium-ion battery.
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
▪
▪
Hysteretic control provides up to 2MHz switching fre-
quency and fast response to load transients with small,
low-cost external components. The fully integrated con-
trol IC simplifies the design while reducing the total PCB
footprint. The AAT1230/1230-1 offers a true load discon-
nect feature 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 output
while disabled.
▪
•
•
•
•
•
•
•
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
▪
▪
The output voltage can be dynamically set by activating
one of two reference levels (FB1 or FB2) through the SEL
logic pin. Optionally, Skyworks' Simple Serial Control™
(S2Cwire™) single wire interface provides dynamic pro-
grammability across a wide output voltage range through
the EN/SET pin.
AAT1230-1: T = 3.5ms
SS
•
•
•
•
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
The AAT1230/1230-1 are available in a Pb-free, thermal-
ly-enhanced 16-pin 3x4mm TDFN low-profile package or
a Pb-free 12-pin TSOPJW package.
Applications
•
•
•
•
•
•
•
CCD Bias Circuit
Digital Still Cameras
LCD Bias Circuit
Mobile Handsets
MP3 Players
OLED Displays
PDAs and Notebook PCs
Typical Application
L1
2.2μH
D1
Schottky 18V @ 100mA
VP
VIN
LIN
C1
2.2μF
VBAT
3.6V
AAT1230/
AAT1230-1
R1
78.7kΩ
C2
2.2μF, 25V
SW
PGND
FB1
R2
562Ω
Enable/Set
Select
EN/SET
FB2
SEL
GND
R3
4.99kΩ
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
1
202053A
• Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • June 12, 2012