Dual High-Efficiency PWM Step-Down DC-DC Coverter
PAM2306
Typical Performance Characteristics
T
A
=25 C, C
IN
=10 μ F, C
O
=10 μ F,L=4.7 μ H, unless otherwise noted.
Dynamic Supply Current VS Input Voltage
50
O
Dynamic Supply Current VS Temperature
60
Dynamic Supply Current(uA)
Dynamic Supply Current(uA)
45
40
35
30
25
20
15
10
5
0
Vo=1.2V
ILoad
=0A
50
40
30
Vo=1.2V
20
10
0
Vin=3.6V
ILoad=0A
2.5
3
3.5
4
4.5
Input Voltage(V)
5
5.5
40
60
80
100
120
140
Temperature(°C)
R dson VS Input Voltage
0.4
Rdson VS Temperature
0.6
Vin=3.6V
0.35
RDS(ON)
Vin=3.6V
0.5
0.4
0.3
0.25
0.2
0.15
0.1
2
3
4
Input Voltage(V)
5
6
Rds(on)
0.3
0.2
0.1
0
20
70
Temperature(°C)
120
Vin=4.2V
Vin=3.6V
Vin=2.7V
Oscillator Frequency VS Supply Voltage
1.8
1.58
Oscillator Frequency VS Temperature
Vin=3.6V
Oscillator Frequency(MHz)
1.56
Vin=3.6V
Oscillator Frequency(MHz)
1.7
1.6
1.5
1.4
1.3
1.2
2
3
4
Supply Voltage(V)
5
1.54
1.52
1.50
20
40
60
80
100
120
140
Temperature(°C)
Power Analog Microelectronics
,
Inc
www.poweranalog.com
07/2008 Rev 1.0
9
PAM [ POWER ANALOG MICOELECTRONICS ]
