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7440530047 データシート(PDF) 1 Page - Skyworks Solutions Inc.

部品番号 7440530047
部品情報  12V, 1.5A Step-Down DC/DC Converter
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メーカー  SKYWORKS [Skyworks Solutions Inc.]
ホームページ  http://www.skyworksinc.com
Logo SKYWORKS - Skyworks Solutions Inc.

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Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201998B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 20, 2013
AAT1162
12V, 1.5A Step-Down DC/DC Converter
DATA SHEET
General Description
The AAT1162 is an 800kHz high efficiency step-down
DC/DC converter. With a wide input voltage range of
4.0V to 13.2V, the AAT1162 is an ideal choice for dual-
cell Lithium-ion battery-powered devices and mid-pow-
er-range regulated 12V-powered industrial applications.
The internal power switches are capable of delivering up
to 1.5A to the load.
The AAT1162 is a highly integrated device, simplifying
system-level design. Minimum external components are
required for the converter.
The AAT1162 optimizes efficiency throughout the entire
load range. It operates in a combination PWM/Light Load
mode for improved light-load efficiency. The high switch-
ing frequency allows the use of small external compo-
nents. The low current shutdown feature disconnects the
load from VIN and drops shutdown current to less than
1μA.
The AAT1162 is available in a Pb-free, space-saving,
thermally-enhanced 16-pin TDFN34 package and is
rated over an operating temperature range of -40°C to
+85°C.
Features
• Input Voltage Range: 4.0V to 13.2V
• Up to 1.5A Load Current
• Fixed or Adjustable Output:
Output Voltage: 0.6V to VIN
• Low 150μA No-Load Operating Current
• Less than 1μA Shutdown Current
• Up to 96% Efficiency
• Integrated Power Switches
• 800kHz Switching Frequency
• Soft Start Function
• Short-Circuit and Over-Temperature Protection
• Minimum External Components
• TDFN34-16 Package
• Temperature Range: -40°C to +85°C
Applications
• Distributed Power Systems
• Industrial Applications
• Laptop Computers
• Portable DVD Players
• Portable Media Players
• Set-Top Boxes
• TFT LCD Monitors and HDTVs
Typical Application
LX
IN
AIN
AAT1162
EN
PGND
FB
AGND
LDO
COMP
C3
22μF
R4
10
R5
24k
C2
0.1μF
C8
1μF
C9
1μF
C7
330pF
L1
2.2 to 4.7μH
Output:
0.6V min,
1.5A max
C6
10μF
Input:
4.0V ~ 13.2V
DGND


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