MIC23153_11 Datasheet, PDF (5/18 Pages) Micrel Semiconductor – 4MHz PWM 2A Buck Regulator with HyperLight Load™ and Power Good

Micrel Inc.
Typical Characteristics (Continued)
UVLO Threshold
vs. Temperature
2.56
2.55
2.54
UVLO_ON
2.53
2.52
2.51
2.50
2.49
UVLO_OFF
2.48
2.47
2.46
-40 -20
0 20 40 60 80 100 120
T EM PERAT URE (°C)
10000
1000
Switching Frequency
vs. Load Current
L = 2.2µH
100
L = 1µH
10
1
VOUT = 1.8V
0.1
0.0001 0.001 0.01 0.1
1
10
LOAD CURRENT (A)
Enable Threshold
v s. Input Voltage
1.2
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 VOLT AGE (V)
Feedback Voltage
vs. Temperature
0.65
0.64
0.63 VIN = 3.6V
0.62
0.61
VIN = 5.5V
VIN = 2.6V
0.60
0.59
-40 -20
0 20 40 60 80 100 120
T EM PERAT URE (°C)
MIC23153
Enable Threshold
vs. Temperature
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
-40 -20
VIN = 3.3V
0 20 40 60 80 100 120
T EM PERAT URE (°C)
September 2011
5
M9999-092211-B