MIC2807 Datasheet, PDF (6/17 Pages) Micrel Semiconductor – RF PA Power Management IC 2MHz, 600mA DC/DC w/DAC Input and Bypass Switch, Dual Low Noise 200mA/30mA LDO Regulators

Micrel, Inc.
Typical Characteristics (DC/DC)
1V_OUT DC/DC Efficiency
100
90
80
70
60
50
40
30
20
10
00
V_IN = 4.2V
V_IN = 3.6V
V_IN = 3V
0.1 0.2 0.3 0.4 0.5
OUTPUT CURRENT (A)
1.8V_OUT DC/DC Efficiency
100
90
80
70
60
50
40
30
20
10
00
V_IN = 4.2V
V_IN = 3.6V
V_IN = 3V
0.1 0.2 0.3 0.4 0.5
OUTPUT CURRENT (A)
DC/DC Switching Frequency
vs. Input Voltage
2.8
2.6
2.4
2.2
2.0
1.8
V_DAC = 0.5V
1.6
V_OUT = 1.5V
I_OUT = 300mA
1.24.7 _{3.1 3.5 3.9 4.3 4.7 5.1 5.5}
INPUT VOLTAGE (V)
DC/DC Load Regulation
1.825
1.823
1.821
1.819
1.817
1.8150
V_IN = 3.6V
0.1 0.2 0.3 0.4 0.5
OUTPUT CURRENT (A)
1.2V_OUT DC/DC Efficiency
100
90
80
70
60
50
40
30
20
10
00
V_IN = 4.2V
V_IN = 3.6V
V_IN = 3V
0.1 0.2 0.3 0.4 0.5
OUTPUT CURRENT (A)
2.5V_OUT DC/DC Efficiency
100
90
80
70
60
50
40
30
20
10
00
V_IN = 4.2V
V_IN = 3.6V
V_IN = 3V
0.1 0.2 0.3 0.4 0.5
OUTPUT CURRENT (A)
DC/DC Current Limit
vs. Input Voltage
1.5
1.3
1.1
0.9
0.27.7 _{3.1 3.5 3.9 4.3 4.7 5.1 5.5}
INPUT VOLTAGE (V)
DC/DC Switching Frequency
vs. Temperature
3.5
3.0
2.5
2.0
1.5
1.0
0.-540 _{-20 0}
V_IN = 3.6V
V_DAC = 0.5V
V_OUT = 1.5V
I_OUT = 300mA
20 40 60 80 100 120
TEMPERATURE (°C)
January 2007
6
MIC2807
1.5V_OUT DC/DC Efficiency
100
90
80
70
60
50
40
30
20
10
00
V_IN = 4.2V
V_IN = 3.6V
V_IN = 3V
0.1 0.2 0.3 0.4 0.5
OUTPUT CURRENT (A)
DC/DC Line Regulation
1.220
1.215
1.210
1.205
V_OUT = 1.2V
I_OUT = 100mA
V_DAC = 0.4V
1.2020.7 _{3.1 3.5 3.9 4.3 4.7 5.1 5.5}
INPUT VOLTAGE (V)
DC/DC Output Voltage
vs. DAC Voltage
4.5
V_IN = 4.2V
4.0 _{IOUT = 100mA}
3.5
3.0
x3
2.5
2.0
= ^{V DAC}
1.5
V ^OUT
1.0
0.5
00.1 0.3 0.5 0.7 0.9 1.1 1.3 1.5
DAC VOLTAGE (V)
M9999-013007-A