MIC23451 Datasheet, PDF (5/20 Pages) Micrel Semiconductor – 3MHz, 2A Triple Synchronous Buck Regulator

Micrel, Inc.
Typical Characteristics
Shutdown Current
vs. Input Voltage
180
160
140
120
100
80
60
40
20
0
2
3
4
5
6
INPUT VOLTAGE (V)
Output Voltage
vs. Output Current (HLL)
1.90
1.88
1.86
1.84
1.82
V_IN = 5V _{VIN = 3.6V}
1.80
1.78
1.76
V_IN = 3V
1.74
1.72 V_OUT = 1.8V
1.70
0
0.03 0.06 0.09 0.12 0.15 0.18
LOAD CURRENT (A)
MIC23451
Line Regulation
(Low Loads)
1.90
1.85
1.80
1.75
I_OUT = 80mA
I_OUT = 20mA
I_OUT = 1mA
1.70
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
INPUT VOLTAGE (V)
5.0
4.8
4.6
4.4
4.2
4.0
3.8
3.6
3.4
3.2
3.0
2
Current Limit
vs. Input Voltage
CH1 = 2.5V
CH3 = 1.2V
CH2 = 1.8V
3
4
5
6
INPUT VOLTAGE (V)
Output Voltage
vs. Temperature
1.84
1.82
1.80
V_IN = 5.5V
V_IN = 3.6V
1.78
1.76
V_IN = 2.7V
1.74
-60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
November 5, 2013
5
Revision 1.2