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AAT1154IAS-2.5-T1

Description
SWITCHING REGULATOR
CategoryPower/power management    The power supply circuit   
File Size550KB,16 Pages
ManufacturerAAT [Advanced Analog Technology, Inc.]
Environmental Compliance
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AAT1154IAS-2.5-T1 Overview

SWITCHING REGULATOR

AAT1154IAS-2.5-T1 Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
MakerAAT [Advanced Analog Technology, Inc.]
package instructionSOP, SOP8,.25
Reach Compliance Codeunknow
control modeCURRENT-MODE
JESD-30 codeR-PDSO-G8
Humidity sensitivity level1
Number of terminals8
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Maximum output current3 A
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Encapsulate equivalent codeSOP8,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Certification statusNot Qualified
surface mountYES
Temperature levelINDUSTRIAL
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Base Number Matches1
1MHz 3A Step-Down DC/DC Converter
General Description
The AAT1154 SwitchReg is a step-down switching
converter ideal for applications where high efficien-
cy, small size, and low ripple are critical. Able to
deliver 3A with an internal power MOSFET, the cur-
rent-mode controlled IC provides high efficiency.
Fully internally compensated, the AAT1154 simpli-
fies system design and lowers external parts count.
The AAT1154 is available in a Pb-free SOP-8 pack-
age and is rated over the -40°C to +85°C tempera-
ture range.
AAT1154
Features
SwitchReg
V
IN
Range: 2.7V to 5.5V
Fixed or Adjustable V
OUT
: 1.0V to 4.2V
3A Output Current
Up to 95% Efficiency
Integrated Low On Resistance Power Switch
Internally Compensated Current Mode Control
1MHz Switching Frequency
Constant Pulse Width Modulation (PWM)
Mode
Low Output Ripple With Light Load
Internal Soft Start
Current Limit Protection
Over-Temperature Protection
SOP-8 Package
-40°C to +85°C Temperature Range
Applications
Cable/DSL Modems
Computer Peripherals
High Efficiency Conversion from 5V or 3.3V
Supply
Network Cards
Set-Top Boxes
Typical Application
INPUT
VP
FB
10μF
100Ω
AAT1154
VCC
LX
1.5μH
EN
0.1μF
GND
120μF
OUTPUT
1154.2006.09.1.6
1

AAT1154IAS-2.5-T1 Related Products

AAT1154IAS-2.5-T1 AAT1154 AAT1154IAS-1.8-T1 AAT1154_06 AAT1154IAS-1.0-T1 AAT1154IAS-3.3-T1
Description SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR
Is it Rohs certified? conform to - conform to - conform to conform to
Maker AAT [Advanced Analog Technology, Inc.] - AAT [Advanced Analog Technology, Inc.] - AAT [Advanced Analog Technology, Inc.] AAT [Advanced Analog Technology, Inc.]
package instruction SOP, SOP8,.25 - SOP, SOP8,.25 - SOP, SOP8,.25 SOP, SOP8,.25
Reach Compliance Code unknow - unknow - unknow unknow
control mode CURRENT-MODE - CURRENT-MODE - CURRENT-MODE CURRENT-MODE
JESD-30 code R-PDSO-G8 - R-PDSO-G8 - R-PDSO-G8 R-PDSO-G8
Humidity sensitivity level 1 - 1 - 1 1
Number of terminals 8 - 8 - 8 8
Maximum operating temperature 85 °C - 85 °C - 85 °C 85 °C
Minimum operating temperature -40 °C - -40 °C - -40 °C -40 °C
Maximum output current 3 A - 3 A - 3 A 3 A
Package body material PLASTIC/EPOXY - PLASTIC/EPOXY - PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code SOP - SOP - SOP SOP
Encapsulate equivalent code SOP8,.25 - SOP8,.25 - SOP8,.25 SOP8,.25
Package shape RECTANGULAR - RECTANGULAR - RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE - SMALL OUTLINE - SMALL OUTLINE SMALL OUTLINE
Certification status Not Qualified - Not Qualified - Not Qualified Not Qualified
surface mount YES - YES - YES YES
Temperature level INDUSTRIAL - INDUSTRIAL - INDUSTRIAL INDUSTRIAL
Terminal form GULL WING - GULL WING - GULL WING GULL WING
Terminal pitch 1.27 mm - 1.27 mm - 1.27 mm 1.27 mm
Terminal location DUAL - DUAL - DUAL DUAL
Base Number Matches 1 - 1 - 1 1
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