AAT2510
Dual 400mA, 1MHz Step-Down DC-DC Converter
Typical Channel Characteristics
Switching Frequency vs. Temperature
(V
IN
= 3.6V; V
O
= 1.5V)
0.20
35
Quiescent Current vs. Input Voltage
(V
O
= 1.8V)
85°C
30
Variation (%)
0.10
Supply Current (µA)
µ
25°C
25
0.00
-0.10
20
-40°C
-0.20
-40
15
-20
0
20
40
60
80
100
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
°
Temperature (°C)
Input Voltage (V)
P-Channel R
DS(ON)
vs. Input Voltage
750
700
650
Load Transient Response
(30mA - 300mA; V
IN
= 3.6V; V
OUT
= 1.8V; C1 = 10µF)
µ
2.0
1.4
1.2
1.0
300mA
30mA
0.8
0.6
0.4
0.2
0.0
-0.2
Load and Inductor Current
(200mA/div) (bottom)
Output Voltage
(top) (V)
5.0
5.5
6.0
R
DS(ON)
(mΩ)
Ω
120°C
100°C
1.9
1.8
1.7
1.6
1.5
1.4
1.3
600
550
500
450
400
350
300
2.5
3.0
3.5
4.0
4.5
25°C
85°C
1.2
Time (25µs/div)
Input Voltage (V)
N-Channel R
DS(ON)
vs. Input Voltage
Output Voltage (AC Coupled)
(top) (V)
750
700
650
120°C
0.1
0.0
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
-0.7
Load Transient Response
(30mA - 300mA; V
IN
= 3.6V; V
OUT
= 1.8V;
C1 = 10µF; C4 = 100pF; see Figure 2)
µ
1.4
1.2
300mA
30mA
1.0
0.8
0.6
0.4
0.2
0.0
-0.2
Load and Inductor Current
(200mA/div) (bottom)
R
DS(ON)
(mΩ)
Ω
100°C
600
550
500
450
400
350
300
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
25°C
85°C
Time (25µs/div)
Input Voltage (V)
6
2510.2005.08.1.5
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
