MIC23450_13 Datasheet, PDF (6/22 Pages) Micrel Semiconductor – 3MHz, PWM, 2A Triple Buck Regulator with HyperLight Load® and Power Good

Micrel, Inc.
Typical Characteristics (Continued)
PG Delay Time
vs. Input Voltage
100
80
PG RISING
60
40
20
PG FALLING
0
2
3
4
5
6
INPUT VOLTAGE (V)
PG Thresholds
vs. Input Voltage
0.91
0.9
PG RISING
0.89
0.88
0.87
0.86
0.85
PG FALLING
0.84
0.83
2 2.5 3 3.5 4 4.5 5 5.5 6
INPUT VOLTAGE (V)
Enable Threshold
vs. Input Voltage
1.2
1.1
1
0.9
0.8
0.7
0.6
T_AMB = 25°C
0.5
2 2.5 3 3.5 4 4.5 5 5.5 6
INPUT VOLTAGE (V)
Enable Threshold
vs. Temperature
1.1
1
0.9 ^{VIN = 3.6V}
V_IN = 5.5V
0.8
0.7
V_IN = 2.7V
0.6
0.5
-60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
VFB
vs. Temperature
0.640
0.635
0.630
0.625
V_IN = 5.5V
0.620
0.615
0.610
V_IN = 3.6V
V_IN = 2.7V
0.605
0.600
-60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
Maximum Output Current
per O/P vs. Temperature (1 O/P)
2.5
2.0
V_OUT = 1V
1.5
V_OUT= 2.8V
1.0
0.5
V_IN = 3.6V
0.0
20
40
60
80 100 120 140
AMBIENT TEMPERATURE (°C)
MIC23450
UVLO Threshold
vs. Temperature
2.57
2.55
UVLO RISING
2.53
2.51
2.49
UVLO FALLING
2.47
-60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
10000
Switching Frequency
vs. Load Current
1000
100
10
V_IN = 3V
V_IN = 3.6V
V_IN = 5V
1
V_OUT = 1.8V
0.1
0.0001 0.001 0.01
0.1
1
10
OUTPUT CURRENT (A)
Maximum Output Current
per O/P vs. Temperature (2 O/Ps)
2.5
2.0
1.5
V_OUT = 2.8V
1.0
V_OUT = 1V
0.5
V_IN = 3.6V
0.0
20
40
60
80 100 120 140
AMBIENT TEMPERATURE (°C)
November 5, 2013
6
110513-1.1