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AAT2687 Datasheet, PDF (8/20 Pages) Advanced Analogic Technologies – PMIC Solution for 24V Systems with 2 High Performance Step-Down Converters
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DATA SHEET
AAT2687
PMIC Solution for 24V Systems
with 2 High Performance Step-Down Converters
Typical Characteristics—Channel 2
LDO Turn-Off Response Time
(VIN2 = 3.3V; VEN2 = 3.3V; VOUT2 = 1.8V; IOUT2 = 600mA)
4
3
2
1
0
2.0
1.0
0.0
-1.0
LDO Turn-On Time from Enable
(VIN2 = 3.3V; VEN2 = 3.3V; VOUT2 = 1.8V; IOUT2 = 600mA)
4
3
2
1
0
3
2
1
0
Time (5µs/div)
Time (5µs/div)
LDO Line Transient Response
(VIN2 = 3V to 4V; VOUT2 = 1.8V; IOUT2 = 600mA; COUT2 = 2.2µF)
5
VIN
4
3
2
VOUT
1.85
1.80
1.75
1.70
Time (200µs/div)
LDO Load Transient Response
(IOUT2 = 0.3 to 0.6A; VIN2 = 3.3V; VOUT2 = 1.8V; COUT2 = 2.2µF)
0.7
0.6
0.5
0.4
0.3
1.90
1.85
1.80
1.75
Time (40µs/div)
LDO Output Voltage Noise
(IOUT2 = 10mA; Power BW: 300~50KHz)
10
5
0
100
1000
10000
100000
Frequency (Hz)
LDO Power Supply Rejection Ratio, PSRR
(IOUT2 = 10mA; BW: 100KHz to 300KHz)
70
60
50
40
30
20
10
0
100
1000
10000
100000
Frequency (Hz)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
8
202033A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • June 8, 2012
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