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AAT2506

AAT
Part Number AAT2506
Manufacturer AAT
Description Step-Down Converter/LDO Regulator
Published Apr 30, 2007
Detailed Description AAT2506 1MHz Step-Down Converter/LDO Regulator General Description The AAT2506 is a member of AnalogicTech's Total Power...
Datasheet PDF File AAT2506 PDF File

AAT2506
AAT2506

Overview
AAT2506 1MHz Step-Down Converter/LDO Regulator General Description The AAT2506 is a member of AnalogicTech's Total Power Management IC™ (TPMIC™) product family.
It is a low dropout (LDO) linear regulator and a step-down converter with an input voltage range of 2.
7V to 5.
5V, making it ideal for applications with single lithium-ion/polymer batteries.
The LDO has an independent input and is capable of delivering up to 300mA.
The linear regulator has been designed for high-speed turn-on and turn-off performance, fast transient response, and good power supply rejection ratio (PSRR).
Other features include low quiescent current and a low dropout voltage.
Features • • • • • • • • • • • • • • • • • • SysPwr™ The AAT2506 is available in either a fixed version with internal feedback or a programmable version with external feedback resistors.
It can deliver 600mA of load current while maintaining a low 25µA no load quiescent current.
The 1MHz switching frequency minimizes the size of external components while keeping switching losses low.
The AAT2506 feedback and control delivers excellent www.
DataSheet4U.
com load regulation and transient response with a small Applications output inductor and capacitor.
• Cellular Phones The AAT2506 is designed to maintain high efficien• Digital Cameras cy throughout the operating range, which is critical • Handheld Instruments for portable applications.
• Microprocessor/DSP Core/IO Power The AAT2506 is available in a 12-pin TDFN33 • PDAs and Handheld Computers package, and is rated over a temperature range of • Portable Media Players -40°C to +85°C.
VIN Range: 2.
7V to 5.
5V VOUT Range: 0.
6V to VIN 300mA LDO Current Output 400mV LDO Dropout Voltage at 300mA High Output Accuracy: ±1.
5% Fast LDO Line / Load Transient Response 600mA, 97% Efficiency Step-Down Converter Fast Turn-On Time (100µs Typical) 25µA No Load Quiescent Current for StepDown Converter Shutdown Current <1µA Low RDS(ON) 0.
4Ω Integrated Power Switches 100% Duty Cycle Low Dropo...


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