English
Language : 

AAT1141_0810 Datasheet, PDF (8/20 Pages) Advanced Analogic Technologies – Fast Transient 600mA Step-Down Converter
◁
SwitchRegTM
Typical Characteristics
Step-Down Converter Load Transient Response
(1mA to 300mA; VIN = 3.6V; VOUT = 1.0V;
COUT = 10µF; CFF = 0pF)
VOUT
(100mV/div) 1.0V
IOUT
(100mA/div)
1mA
300mA
Time (40µs/div)
Line Response
(VOUT = 1.8V @ 400mA)
1.82
6.0
1.81
5.5
1.80
5.0
1.79
4.5
1.78
4.0
1.77
3.5
1.76
3.0
Time (25μs/div)
Output
Ripple
(20mV/div)
Step-Down Converter Output Ripple
(VOUT = 1.8V; VIN = 3.6V; IOUT = 600mA;
L = 4.7µH; CFF = 100pF; COUT = 4.7µF)
1.8V
LX
(2V/div) 0V
Inductor
Current 600mA
(100mA/div)
Time (0.5µs/div)
PRODUCT DATASHEET
AAT1141
Fast Transient 600mA Step-Down Converter
Step-Down Converter Load Transient Response
(300mA to 400mA; VIN = 3.6V;
VOUT = 1.0V; COUT = 10µF; CFF = 0pF)
VOUT
(50mV/div) 1.0V
IOUT
(100mA/div)
300mA
400mA
Time (40µs/div)
Step-Down Converter Output Ripple
(VOUT = 1.8V; VIN = 3.6V; IOUT = 1mA; L = 4.7µH;
CFF = 100pF; COUT = 4.7µF)
Output
Ripple 1.8V
(20mV/div)
LX 1.8V
(2V/div)
Inductor
Current 0mA
(100mA/div)
Time (10µs/div)
8
www.analogictech.com
1141.2008.10.1.6
 ▷