PAM2319 Datasheet, PDF (8/13 Pages) Power Analog Micoelectronics – Dual High-Efficiency PWM Step-Down DC-DC Coverter

PAM2319
Dual High-Efficiency PWM Step-Down DC-DC Coverter
Typical Performance Characteristics
T_A =25°C,V_O =1.2V, C_IN =10µF, C_O =10µF, L=1.0µH,unless otherwise noted.
Channel 2
Efficiency vs Output Current
100
90
80
70
60
50
40
1
Vin=3.3V
Vin=4.2V
Vin=5V
10
100
1000
Output Current(mA)
10000
Output Voltage vs Output Current
1.22
1 .2 16
1 .2 12
1 .2 08
1 .2 04
1.2
1 .1 96
1 .1 92
1 .1 88
1 .1 84
1.18
0
V in =3.3V
V in =4.2V
V in =5V
50 0
1 00 0
1 500
Outpu t Cu rre nt(m A)
200 0
Feedback Voltage vs Output Current
6 15
6 10
6 05
6 00
5 95
5 90
0
Vin= 3.3V
Vin= 4.2V
Vin= 5V
50 0
1 000
150 0
Outp ut C urre nt(mA)
20 00
Quiescent Current vs Input Voltage
70
60
50
40
30
20
10
0
2.5
3
3.5
4
4.5
5
5.5
6
Input Voltage(V)
RDS(ON) vs Input Voltage
0.14
0.12
0.1
0.08
0.06
0.04
0.02
0
2.5
3
3.5
4
4.5
5
Input Voltage(V)
P MOS
N MOS
5.5
6
Load Transient
Output
Current
Output
Voltage
Vin=3.3V,Vo=1.2V,Io=0~2A,f=1kHz
Power Analog Microelectronics, Inc
www.poweranalog.com
8
12/2011 Rev1.1