MIC23158 Datasheet, PDF (7/20 Pages) Micrel Semiconductor – 3MHz PWM Dual 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
2.5
Line Regulation
(HLL)
IOUT = 80mA
IOUT = 20mA
IOUT = 1mA
VOUTNOM = 1.8V
COUT = 4.7µF
3.0 3.5 4.0 4.5 5.0 5.5
INPUT VOLTAGE (V)
V_OUTMAX vs. V_IN
5.0
4.5
IOUT = 100mA
4.0 _{IOUT = 400mA}
3.5
3.0
IOUT = 1.2A
2.5
2.0
1.5
TA = 25°C
1.0
2.5 3.0 3.5 4.0 4.5 5.0 5.5
INPUT VOLTAGE (V)
2.00
1.95
1.90
1.85
1.80
1.75
1.70
1.65
1.60
200
Load Regulation
(CCM)
VIN = 3.6V
VOUTNOM = 1.8V
COUT = 4.7µF
600
1000
1400
1800
OUTPUT CURRENT (mA)
Feedback Voltage
vs. Temperature
0.65
0.64
0.63
0.62
0.61
0.60
VIN = 3.6V
VOUT = 1.8V
0.59
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
MIC23158/9
2.00
1.95
1.90
1.85
1.80
1.75
1.70
1.65
1.60
0
Load Regulation
(HLL)
VIN = 3.6V
VOUTNOM =1.8V
COUT = 4.7µF
20 40 60 80 100 120
OUTPUT CURRENT (mA)
Switching Frequency
vs. Temperature
5
4
3
2
1
0
-40 -20
VIN = 3.6V
VOUTNOM = 1.8V
COUT = 4.7µF
0 20 40 60 80 100 120
TEMPERATURE (°C)
November 2012
7
M9999-110812-A