AAT1109A
| Model | AAT1109A |
| Description | ONE-CHANNEL BOOST SWITCHING REGULATOR |
| PDF file | Total 10 pages (File size: 290K) |
| Chip Manufacturer | ANALOGICTECH |
Advanced Analog Technology, Inc.
AAT1109A
Preliminary and Provisional
ONE-CHANNEL BOOST SWITCHING REGULATOR
Features
Under-voltage lockout protection
Totem pole output
Output short circuit protection
Incorporates soft start function
Wide operating frequency：
10kHz to 1MHz
Shut down control
Low dissipation current :
Typical 1.6mA in operation
Sop-8 & Tssop-8 package available
General Description
The AAT1109A is a one-channel switching
regulator control IC incorporating a soft start
function and a short circuit protection function.
Each device consists of an on-chip voltage reference,
error amplifier, pulse width modulation controller,
under-voltage protection, soft start and short circuit
protection circuits. Switching frequencies up to
1MHz are set by an external resistor and capacitor.
Soft-start time can be implemented by the SCP
capacitor.
Additionally, a chip enable feature is provided to
power down reducing the supply current to 10uA.
With a minimum number of external components,
the AAT1109A offers a simple and cost effective
solution.
Pin Configuration
TOP VIEW
-IN
SCP
Vcc
CE
1
2
3
4
8
7
6
5
FB
OSC
GND
OUT
(SOP-8 PACKAGE)
(TSSOP-8 PACKAGE)
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台灣類比科技股�½有限公司
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Advanced Analog Technology, Inc
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