AAT2503_08 Datasheet, PDF (8/22 Pages) Advanced Analogic Technologies – Adjustable 3-Channel Regulator

SystemPower^TM
PRODUCT DATASHEET
AAT2503178
Adjustable 3-Channel Regulator
Typical Characteristics—Step-Down Converter
Line Transient
(V_OUT = 1.8V; I_OUT = 800mA; V_IN = 3.6V to 4.2V)
5.0
2.5
4.5
2.4
4.0
2.3
3.5
2.2
3.0
2.1
2.5
2.0
2.0
1.9
1.5
1.8
1.0
1.7
0.5
1.6
0.0
1.5
Load Transient
(V_IN = 3.6V; V_OUT = 1.8V; I_OUT = 300mA to 650mA)
2.2
2.0
V_OUT
1.8
1.6 _IOUT
1.4
650mA
1.2
300mA
1.0
0.6
0.8 I_INDUCTOR
0.3
0.6
0.0
Time (20µs/div)
Time (20µs/div)
Light Load Output Ripple
(V_IN = 2.7V; V_OUT = 1.8V; I_OUT = 1mA)
1.4
20
1.2 VOUT
10
1.0
0
0.8
-10
0.6
-20
0.4
-30
0.2 ^IINDUCTOR
-40
0.0
-50
-0.2
-60
Time (10µs/div)
Heavy Load Output Ripple
(V_IN = 3.6V; V_OUT = 1.8V; I_OUT = 800mA)
1.8
20
1.6 _VOUT
10
1.4
0
1.2
-10
1.0
-20
0.8
-30
0.6
-40
I_INDUCTOR
0.4
-50
0.2
-60
Time (200ms/div)
8
www.analogictech.com
2503.2008.02.1.4