AAT2786
AAT2786 is 1.5A Step-Down Converter and 150mA LDO manufactured by Skyworks Solutions.
Description
The AAT2786 is a dual output power solution. It includes a 1.5A, 1.4MHz, high-efficiency step-down converter and a high performance 150m A LDO regulator. The stepdown regulator output voltage is adjustable from 0.6V to VIN. The LDO regulator has a factory preset fixed output voltage from 1.2V to 3.3V.
The step-down converter consumes only 42μA of no-load quiescent current and is designed to maintain high efficiency throughout the load range. The step-down converter has ultra-low RDS(ON) integrated MOSFETs and can operate up to 100% duty cycle to enable high output voltage, high current applications which require a low dropout threshold. The AAT2786 provides excellent transient response and high output accuracy across the operating range. Pulling the MODE/SYNC pin high enables “PWM Only” mode, maintaining constant frequency and low output ripple across the operating range. Alternatively, the converter may be synchronized to an external clock input via the MODE/SYNC pin.
The Micro Power low dropout linear regulator in the AAT2786 has been specifically designed for high-speed turn-on and turn-off performance, fast transient response, and good noise and power supply ripple rejection (PSRR), making it ideal for powering sensitive circuits with fast switching requirements.
Over-temperature and short-circuit protection safeguard the AAT2786 and system ponents from damage.
Features
- VIN Range : 2.5V to 5.5V
- 1.5A Step-Down Converter
- VOUT Range: 0.6V to VIN
- 95% Peak Efficiency
- High Efficiency across load range
- 42μA No Load Quiescent Current
- Optional “PWM Only” Low Noise Mode
- Current limit and soft start
- 150m A LDO Regulator
- VOUT Range: 1.2V to 3.3V (Fixed)
- High Power Supply Rejection Ratio
- Low Output Noise
- Independent Enable Pins
- Integrated Power MOSFETs
- Over-Temperature Protection
- TDFN34-16 Package
- -40°C to +85°C Temperature Range
Applications
- Cellular and Smart Phones
- PDAs, Palmtops
- Digital Still and Video Cameras
-...
