SD3112-4R7-R datasheet(10/22 Pages) SKYWORKS

Part #	SD3112-4R7-R

Description	600mA Voltage-Scaling Step-Down Converter for RF Power Amplifiers with Bypass Switch

PDF	22 Pages

Scroll/Zoom	100%

Manufacturer	SKYWORKS [Skyworks Solutions Inc.]

Direct Link	http://www.skyworksinc.com

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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

(LL Mode; VIN = 4.2V; RL = 10

Ω; C

OUT = 4.7µF; L = 2.2µH)

Time (25µs/div)

VOUT

1V/div

VDAC

0.5V/div

0.6V

4.2V

1.3V

0.2V

Enable Soft Start

(VIN = 3.6V; VOUT = 1.8V; RL = 3.9Ω;

COUT = 4.7µF; L = 2.2µH)

Time (20µs/div)

VOUT

1V/div

Enable

2V/div

IIN

200mA/div

1.8V

Load Transient Response

(VIN = 4.2V; VOUT = 3.3V; COUT = 4.7µF; L = 2.2µH)

Time (20µs/div)

VOUT

(AC coupled)

20mV/div

IOUT

200mA/div

525mA

250mA

3.51V

3.26V

Load Transient Response

(VIN = 3.6V; VOUT = 1.8V; COUT = 4.7µF; L = 2.2µH)

Time (20µs/div)

VOUT

(AC coupled)

20mV/div

IOUT

100mA/div

200mA

500mA

1.914V

1.798V

Line Transient Response

(VOUT = 1.5V; RL = 10

Ω; C

OUT = 4.7µF; L = 2.2µH)

Time (50µs/div)

VOUT

(AC coupled)

50mV/div

VIN

0.5V/div

3.6V

3.0V

1.56V

1.44V

SD3112-4R7-R Datasheet(PDF) 10 Page - Skyworks Solutions Inc.

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