Electronic Components Datasheet Search |
|
AAT2783 Datasheet(PDF) 1 Page - Advanced Analogic Technologies |
|
AAT2783 Datasheet(HTML) 1 Page - Advanced Analogic Technologies |
1 / 22 page AAT2783 Triple Output PMIC: Dual Buck with Low-VIN LDO SystemPowerTM PRODUCT DATASHEET 2783.2008.03.1.0 1 www .analogictech.com General Description The AAT2783 provides three independently regulated DC outputs: two step-down (Buck) regulators and a single low input voltage, low drop-out (LDO) regulator. The input voltage range for the step-down regulators is 2.7V to 5.5V, while the LDO regulator allows inputs from 1.5V to 5.5V. The low input voltage LDO regulator allows high efficiency, step-down, low noise outputs. In addi- tion, the LDO input may be connected to step-down outputs 1 or 2. The Channel 1 and 2 step-down regulators can deliver up to 1000mA and 400mA output current, respectively. Step-down output voltages are set with external resis- tors. Switching frequency is set at 1.3MHz to ensure small external filtering components. Current mode con- trol assures fast transient response and stable operation across the operating range. The Channel 3 LDO regulator can deliver up to 400mA with -80dB power supply rejec- tion ratio (PSRR) and 65μVRMS output noise with an optional bypass capacitor. The LDO output voltage is fac- tory set with a default voltage of 1.20V. Independent enable and input pins are provided. The device consumes low quiescent current and provides high efficiency across the load range for maximum life in battery systems. The AAT2783 is available in the Pb-free, 16-pin TDFN34 package and is rated over the -40°C to 85°C operating temperature range. Features • V IN Range Step-Down (Buck): 2.7V to 5.5V • V IN Range Low Drop-Out (LDO): 1.5V to 5.5V • Output Voltage Range: 0.6V to V IN • Step-Down Output Current: ▪ Channel 1: 1000mA ▪ Channel 2: 400mA • LDO Output Current: ▪ Channel 3: 400mA • High Efficiency with Low R DS(ON) Switches ▪ Step-Down up to 97% ▪ LDO Regulator up to 80% • Total Quiescient Current 135μA • Shutdown Current: 1μA • Step-Down Converters ▪ 1.3MHz Switching Frequency ▪ Current Mode Control ▪ Cycle-by-Cycle Current Limit ▪ High Efficiency Light-Load Mode Operation • LDO Converter ▪ Ultra Low Noise with Bypass Capacitor ▪ Over-Current Protection • 200μs Internal Soft Start • Over-Temperature Protection • TDFN34-16 Low Profile Package • -40°C to 85°C Temperature Range Applications • Cellular and SmartPhones • Microprocessor / DSP Core / IO Power • PDAs and Handheld Computers • Portable Media Players • Wireless Data Systems Typical Application AAT2783 VP2 EN2 AGND FB2 LX2 VOUT1 1.2V, 1.0A VOUT2 1.7V, 0.4A VOUT3 1.2V, 400mA C2 10μF BYP OUT3 VIN3 EN3 EP C3 2.2μF L2 2.2μH C5 4.7μF R2 59.0k R3 107k C7 0.01μF AGND VP1 EN1 VIN GND1 FB1 LX1 C1 10μF C4 0.1μF L1 1.5μH C8 10μF R4 59.0k R5 59.0k VIN 2.7V –5.5V GND2 VIN = VOUT2 GND2 |
Similar Part No. - AAT2783 |
|
Similar Description - AAT2783 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |