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參數資料
| 型號： | AAT1232ITP-T1 |
| 廠商： | Advanced Analog Technology,lnc. |
| 英文描述： | 24V 100mA Step-Up Converter |
| 中文描述： | 24V的100mA的升壓轉換器 |
| 文件頁數： | 1/17頁 |
| 文件大小： | 416K |
| 代理商： | AAT1232ITP-T1 |
AAT1232
24V 100mA Step-Up Converter
1232.2006.12.1.3
1
SwitchReg
General Description
The AAT1232 is a high frequency, high efficiency
boost converter capable of 24V maximum output
voltage. The internal power switch can deliver
100mA load current. It is the ideal power solution to
power OLED, LCD, and CCD applications operat-
ing from a single cell lithium-ion battery.
The high switching frequency (up to 2MHz) pro-
vides fast response to load transients with small
external components. The fully integrated control
IC simplifies the design while reducing the total
PCB footprint. The AAT1232 offers a true load dis-
connect feature which isolates the load from the
power source when EN/SET is pulled low. This
eliminates leakage current and maintains zero volt-
age at the output while disabled.
The output voltage can be dynamically set by acti-
vating one of two reference levels (FB1 or FB2)
through the SELlogic pin. Optionally, AnalogicTech’s
Simple Serial Control (S
2
Cwire) interface pro-
vides dynamic programmability across a wide output
voltage range through the EN/SET pin.
The AAT1232 is available in a Pb-free, thermally-
enhanced 16-pin 3x4mm TDFN low-profile pack-
age or a Pb-free 12-pin TSOPJW package.
Features
V
IN
Range: 2.7V to 5.5V
Maximum Output: 24V @ 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 R
DS(ON)
MOSFET Switches
Up to 85% Efficiency
<1μA Shutdown Current
Integrated Soft Start
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
Typical Application
LIN
EN/SET
PGND
VP
C
1
2.2μF
L
1
2.2μH
D
1
Schottky
R
1
576k
Ω
R
2
10.0k
Ω
C
2
2.2μF, 25V
R
3
20.0k
Ω
Input:
2.7V~5.5V
AAT1232
SW
FB1
FB2
SEL
24V @ 100mA
VIN
GND
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