MIC23155 Datasheet, PDF (6/19 Pages) Micrel Semiconductor – 3MHz PWM 2A Buck Regulator with HyperLight Load and Power Good

Micrel Inc.
Typical Characteristics (Continued)
2.00
1.95
1.90
1.85
1.80
1.75
1.70
1.65
1.60
0
Load Regulation
(HLL)
V_IN = 3.6V
V_OUTNOM =1.8V
C_OUT = 4.7µF
40
80 120 160 200
OUTPUT CURRENT (A)
Feedback Voltage
vs. Temperature
0.65
0.64
0.63
0.62
0.61
0.60
VIN = 3.6V
VOUTNOM= 1.8V
0.59
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
Load Regulation
(CCM)
2.00
1.95
1.90
1.85
1.80
1.75
1.70
1.65
1.60
VIN = 3.6V
VOUTNOM = 1.8V
COUT = 4.7µF
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
OUTPUT CURRENT (A)
Switching Frequency
vs. Temperature
5
4
3
2
1
0
-40 -20
V_IN = 3.6V
V_OUTNOM = 1.8V
C_OUT = 4.7µF
0 20 40 60 80 100 120
TEMPERATURE (°C)
MIC23155
V_OUTMAX vs. V_IN
5.0
4.5
IOUT = 100mA
4.0
3.5
IOUT = 400mA
3.0
IOUT = 1.2A
2.5
2.0
1.5
1.0
2.5 3.0 3.5 4.0 4.5 5.0 5.5
INPUT VOLTAGE (V)
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0.1
Switching Frequency
vs. Output Current
L=0.47µH
L=1.0µH
1
10 100 1000 10000
OUTPUT CURRENT (mA)
April 2011
6
M9999-041811-A