10

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

201999B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 20, 2013

AAT1171

600mA Voltage-Scaling Step-Down Converter

for RF Power Amplifiers with Bypass Switch

DATA SHEET

Typical Characteristics

DAC to Bypass Transient Response

Ω; C

Time (25µs/div)

1V/div

0.5V/div

0

0

0.6V

4.2V

1.3V

0.2V

Enable Soft Start

Time (20µs/div)

1V/div

Enable

2V/div

200mA/div

0V

0V

0A

1.8V

Load Transient Response

Time (20µs/div)

(AC coupled)

20mV/div

200mA/div

525mA

250mA

3.51V

3.26V

Load Transient Response

Time (20µs/div)

(AC coupled)

20mV/div

100mA/div

200mA

500mA

1.914V

1.798V

Line Transient Response

Ω

Ω; C

Time (50µs/div)

(AC coupled)

50mV/div

0.5V/div

3.6V

3.0V

1.56V

1.44V