AAT2522 Datasheet, PDF (9/19 Pages) Skyworks Solutions Inc. – Dual High-Current, Low-Noise, Step-Down Regulator

DATA SHEET
AAT2522
Dual High-Current, Low-Noise, Step-Down Regulator
Typical Characteristics
Step-Down Converter Line Transient Response
(VIN = 3.6V to 4.3V; VOUT = 2.5V; IOUT = 3A)
5
4
3 3.6V
4.3V
2
2.9
2.7
2.5
2.3
2.1
Time (200µs/div)
Step-Down Converter Output Ripple
(VIN = 3.6V; VOUT = 1.2V; IOUT = 1mA)
3.6V
0V
1.22
1.20
1.18
0.4
0.2
0.0
Time (100µs/div)
Step-Down Converter Output Ripple
(VIN = 3.6V; VOUT = 1.2V; IOUT = 3A)
3.6V
0V
1.22
1.20
1.18
3.5
3.0
2.5
Time (500ns/div)
Step-Down Converter Output Ripple
(VIN = 4.2V; VOUT = 3.3V; IOUT = 1mA)
4.2V
0V
3.35
3.30
3.25
0.2
0.0
Time (500ns/div)
Step-Down Converter Output Ripple
(VIN = 4.2V; VOUT = 3.3V; IOUT = 3A)
4.2V
0V
3.35
3.30
3.25
3.1
3.0
2.9
Time (500ns/div)
Step-Down Converter Short Circuit Protection
(VIN = 5V; VOUT = 1.8V; CFF = 100pF)
5
3
1
1.8V
0V
4
2
0
Time (100µs/div)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
202032A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • June 8, 2012
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