MIC23303 Datasheet, PDF (6/21 Pages) Micrel Semiconductor – 4MHz PWM 3A Buck Regulator with HyperLight Load™ and Power Good

Micrel, Inc.
Typical Characteristics (Continued)
Output Voltage
vs. Temperature
1.85
1.84
1.83
1.82
1.81
1.80
1.79
1.78
1.77
VIN = 3.6V
L = 0.33µH
1.76
COUT = 44µF
IOUT = 20mA
1.75
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
Undervoltage Lockout
vs. Temperature
2.6
UVLO ON
2.5
2.4
2.3
UVLO OFF
2.2
2.1
2.0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
Feedback Voltage
vs. Temperature
0.65
0.64
0.63
0.62
VIN = 5V
0.61
0.6
VIN = 2.7V
0.59
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
PG Delay Time
vs. Input Voltage
160
140
120
PG Rising
100
80
PG Falling
60
40
2.5 3.0 3.5 4.0 4.5 5.0 5.5
INPUT VOLTAGE (V)
Enable Threshold
vs. Input Voltage
1.1
1.0
0.9
0.8
0.7
0.6
0.5
2.5
TCASE=25°C
3.0 3.5 4.0 4.5 5.0 5.5
INPUT VOLTAGE (V)
Shutdown Current
vs. Temperature
1000
100
10
VIN=5.5V
VEN=0V
1
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
MIC23303
PG Thresholds vs.
Input Voltage
95
PG Rising
90
85
80
75
PG Falling
70
65
2.5
3.0
3.5
4.0
4.5
5.0
5.5
INPUT VOLTAGE (V)
Enable Thresholds
vs. Temperature
1
0.95
0.9
0.85
0.8
0.75
0.7
-40 -20
0 20 40 60 80 100 120 140
TEMPERATURE (°C)
Switching Frequency
vs. Load Current
10000
1000
VIN = 5V
100
VIN = 3V
10
1
0.1
0.0001
0.001
VOUT = 1.8V
L = 0.33µH
COUT = 44µF
0.01
0.1
1
10
LOAD CURRENT (A)
September 6, 2013
6
090613-2.0