PAM2319 Datasheet, PDF (7/13 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 =1.8V, C_IN =10µF, C_O =10µF, L=1.0µH,unless otherwise noted.
Channel 1
Efficiency vs Output Current
100
90
80
70
60
50
40
1
10
100
Output Current(mA)
Vin=3.3V
Vin=4.2V
Vin=5V
1000
Output Voltage vs Output Current
1.8 2
1 .81 9
1 .81 8
1 .81 7
1 .81 6
1 .81 5
1 .81 4
1 .81 3
1 .81 2
1 .81 1
1.8 1
0
Vi n=3.3 V
Vi n=4.2 V
Vi n=5V
100 200 300 400 500 600 700 800 900 1000
Output Current(m A)
Feedback Voltage vs Output Current
606
605
604
603
602
601
600
599
598
0
V in=3.3V
V in=4.2V
V in=5V
2 00
40 0
60 0
80 0
10 00
Outpu t Cu rre nt(mA)
Quiescent Current vs Input Voltage
50
45
40
35
30
25
20
15
10
5
0
2.5
3
3.5
4
4.5
5
5.5
6
Input Voltage(V)
RDS(ON) vs Input Voltage
0. 40
0. 35
PMOS
0. 30
0. 25
0. 20
0. 15
0. 10
0. 05
0. 00
2.5
3
3.5
4
4.5
5
Input Voltage(V)
5. 5
6
Load Transient
Output
Current
Output
Voltage
Vin=3.3V,Vo=1.8V,Io=0~1A,f=1kHz
Power Analog Microelectronics, Inc
www.poweranalog.com
7
12/2011 Rev1.1