AAT2782_12 Datasheet, PDF (10/22 Pages) Skyworks Solutions Inc. – Triple-Output PMIC Dual Buck with Low-VIN LDO

DATA SHEET
AAT2782
Triple-Output PMIC: Dual Buck with Low-V_IN LDO
Typical Characteristics—Buck Converter 2
Step-Down Converter 2 Output Ripple
(V_IN = 3.3V; V_OUT2 = 1.7V; I_OUT2 = 600mA)
Step-Down Converter 2 Output Ripple
(V_IN = 3.3V; V_OUT2 = 1.7V; I_OUT2 = 1mA)
1.71
1.71
1.70
1.70
1.69
1.69
0.8
0.6
0.2
0.4
0.0
Time (500ns/div)
Time (10µs/div)
Step-Down Converter 2 Line Transient Response
(V_IN = 3V to 4V; V_OUT2 = 1.7V; I_OUT2 = 0.6A; C_OUT2 = 10µF)
5
4
3
2
1.9
1.8
1.7
1.6
Time (100µs/div)
Step-Down Converter 2 Load Transient Response
(I_OUT2 = 0.45A to 0.6A; V_IN = 3.3V; V_OUT2 = 1.7V;
C_OUT2 = 4.7µF; C_FF = 100pF)
0.6A
0.45A
0.8
0.6A
0.6
0.45A
0.4
1.75
1.70
1.65
Time (100µs/div)
Step-Down Converter 2 Soft Start
(V_IN = 3.3V; V_OUT2 = 1.7V; I_OUT2 = 600mA; C_FF = 100pF)
4
3
2
1
0
1.0
0.5
0.0
Time (50µs/div)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
10
202038A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • June 8, 2012