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Teilenummer | AAT1109A |
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Beschreibung | ONE-CHANNEL BOOST SWITCHING REGULATOR | |
Hersteller | Advanced Analogic Technologies | |
Logo | ||
Gesamt 10 Seiten Advanced Analog Technology, Inc.
Preliminary and Provisional
AAT1109A
ONE-CHANNEL BOOST SWITCHING REGULATOR
Features
z Under-voltage lockout protection
z Totem pole output
z Output short circuit protection
z Incorporates soft start function
z Wide operating frequency
10kHz to 1MHz
z Shut down control
z Low dissipation current :
Typical 1.6mA in operation
z Sop-8 & Tssop-8 package available
Pin Configuration
TOP VIEW
-IN 1
SCP 2
Vcc 3
CE 4
8 FB
7 OSC
6 GND
5 OUT
(SOP-8 PACKAGE)
(TSSOP-8 PACKAGE)
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.
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Advanced Analog Technology, Inc. –
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Advanced Analog Technology, Inc.
Function Block Diagram
AAT1109A
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Advanced Analog Technology, Inc. –
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6 Page | ||
Seiten | Gesamt 10 Seiten | |
PDF Download | [ AAT1109A Schematic.PDF ] |
Teilenummer | Beschreibung | Hersteller |
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