AAT2506

Features:

• 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 (100s Typical)
• 25A No Load Quiescent Current for Step-Down Converter
• Shutdown Current <1A
• Low RDS(ON) 0.4 Integrated Power Switches
• 100% Duty Cycle Low Dropout Operation
• 1MHz Switching Frequency
• 100s Typical Soft Start
• Over-Temperature Protection
• Current Limit Protection
• Available in TDFN33-12 Package
• -40°C to +85°C Temperature Range


Application

• Cellular Phones
• Digital Cameras
• Handheld Instruments
• Microprocessor/DSP Core/IO Power
• PDAs and Handheld Computers
• Portable Media Players


Pinout




Specifications

Symbol	Description	Value	Units
VP, VLDO	Input Voltages to GND	6.0	V
VLX	LX to GND	-0.3 to VP + 0.3	V
VFB	FB to GND	-0.3 to VP + 0.3	V
VEN	EN to GND	-0.3 to 6.0	V
TJ	Operating Junction Temperature Range	-40 to 150	°C
TLEAD	Maximum Soldering Temperature (at leads, 10 sec)	300	°C

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 AAT2506 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.