PAM2305D
1A Step-Down DC-DC Converter
Typical Performance Characteristics
T
A
=25 ° , C
IN
=10
μ
F, C
O
=10
μ
F, L=4.7
μ
H, unless otherwise noted.
C
Efficiency vs Output Current (Vo=2.5V)
100
90
88
96
92
Efficiency vs Input Voltage (Vo=2.5V)
80
70
60
50
40
1
10
100
Output Current(mA)
1000
Vin=3.6V
Vin=4.2V
Vin=5.0V
84
80
76
72
68
64
60
2.5
Io=10mA
Io=100mA
Io=1000mA
3.5
4.5
Input Voltage(V)
5.5
Efficiency vs Output Current (Vo=3.3V )
100
95
90
85
80
75
70
65
60
1
10
100
Output Current(mA)
1000
Vin=4.2V
Vin=5.0V
Vin=5.5V
Efficiency vs Input Voltage (Vo=3.3V)
100
95
90
85
80
75
70
65
60
4.0
Io=10mA
Io=100mA
Io=1000mA
4.5
5.0
Input Voltage(V)
5.5
Quiescent Current vs Input Voltage
43
42
41
40
0.3
39
38
37
36
2.5
3
3.5
4
4.5
Input Votage(V)
5
5.5
0.28
Vout=1.2V
Vout=1.8V
Vout=3.3V
0.26
0.36
0.34
0.32
Rdson vs Input Voltage
Vout=1.2V
Vout=2.5V
Vout=3.3V
0.24
2.5
3
3
.5
4
4.5
Input Votage(V)
5
5
.5
Power Analog Microelectronics
,
Inc
www.poweranalog.com
02/2012 Rev1.1
6
PAM [ POWER ANALOG MICOELECTRONICS ]
