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AAT1152_06

Description
850kHz 1A Buck DC/DC Converter
File Size646KB,17 Pages
ManufacturerAAT [Advanced Analog Technology, Inc.]
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AAT1152_06 Overview

850kHz 1A Buck DC/DC Converter

850kHz 1A Buck DC/DC Converter
General Description
The AAT1152 SwitchReg is a step-down switching
converter ideal for applications where high efficien-
cy, small size, and low ripple are critical. Able to
deliver 1A with internal power MOSFETs, the cur-
rent mode controlled IC is internally compensated
for simplified system design and low external parts
count.
The AAT1152 features a Power-OK (POK) function
which monitors the output, alerting the system if
the output voltage falls out of regulation.
The AAT1152 is available in a Pb-free MSOP-8
package and is rated over the -40°C to +85°C tem-
perature range.
AAT1152
Features
SwitchReg
5.5V Max Supply Input
Fixed or Adjustable V
OUT
1.0V to 4.2V
1A Output Current
Integrated Low On Resistance Power Switches
Up to 95% Efficiency
Power-OK Signal
Internally Compensated Current Mode Control
High Initial Accuracy: ±1%
850kHz Switching Frequency
Constant Pulse Width Modulation (PWM)
Mode
Low Output Ripple with Light Load
Internal Soft Start
Current Limit Protection
Over-Temperature Protection
MSOP-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
100k
10μF
VP
AAT1152
POK
FB
4.1μH
LX
ENABLE
100Ω
VCC
SGND
0.1μF
PGND
3 x 22μF
OUTPUT
1152.2006.09.1.7
1

AAT1152_06 Related Products

AAT1152_06 AAT1152IKS-1.0-T1 AAT1152IKS-2.5-T1 AAT1152IKS-1.8-T1 AAT1152IKS-3.3-T1
Description 850kHz 1A Buck DC/DC Converter 850kHz 1A Buck DC/DC Converter 850kHz 1A Buck DC/DC Converter 850kHz 1A Buck DC/DC Converter 850kHz 1A Buck DC/DC Converter
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 - TSSOP, TSSOP8,.19 TSSOP, TSSOP8,.19 TSSOP, TSSOP8,.19 TSSOP, TSSOP8,.19
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 - 1 A 1 A 1 A 1 A
Package body material - PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code - TSSOP TSSOP TSSOP TSSOP
Encapsulate equivalent code - TSSOP8,.19 TSSOP8,.19 TSSOP8,.19 TSSOP8,.19
Package shape - RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package form - SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Certification status - Not Qualified Not Qualified Not Qualified Not Qualified
surface mount - YES YES YES YES
Maximum switching frequency - 1000 kHz 1000 kHz 1000 kHz 1000 kHz
Temperature level - INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL
Terminal form - GULL WING GULL WING GULL WING GULL WING
Terminal pitch - 0.635 mm 0.635 mm 0.635 mm 0.635 mm
Terminal location - DUAL DUAL DUAL DUAL
Base Number Matches - 1 1 1 -
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