MIC23603 Datasheet, PDF (4/19 Pages) Micrel Semiconductor – 4MHz PWM 6A Buck Regulator

Micrel Inc.
Typical Characteristics
100
90
80
70
60
50
40
30
20
10
0
0.0001
Efficiency vs.
Output Current
V_OUT = 3.3V
V_OUT = 2.5V
V_IN = 5V
L = 0.33µH
C_OUT = 2x47µF
0.001 0.01
0.1
1
10
OUTPUT CURRENT (A)
MIC23603
Efficiency vs.
Output Current V_OUT = 1.8V
100
90
80
70
60
V_IN = 3.6V
V_IN = 5V
50
V_IN = 2.9V
40
30
20
L = 0.33µH
C_{OU T}= 2x47µF
10
0
0.0001 0.001 0.01
0.1
1
10
OUTPUT CURRENT (A)
Efficiency vs.
Output Current V_OUT = 1.2V
100
90
80
70
60
V_IN = 3.6V
50
40
V_IN = 2.9V
V_IN = 5V
30
20
L = 0.33µH
10
C_OUT = 2x47µF
0
0.0001 0.001 0.01
0.1
1
10
OUTPUT CURRENT (A)
Output Voltage vs.
Input Voltage
1.220
1.215
1.210
1.205
1.200
LOAD = 4A
LOAD = 1.5A
1.195
1.190
2.5
L = 0.33µH
C_OUT = 2x47µF
3
3.5
4
4.5
5
5.5
INPUT VOLTAGE (V)
Output Voltage vs.
Input Voltage
1.220
1.215
1.210
1.205
LOAD = 100mA
1.200
1.195
1.190
2.5
LOAD = 10mA
L = 0.33µH
C_OUT = 2x47µF
3
3.5
4
4.5
5
5.5
INPUT VOLTAGE (V)
Output Voltage vs.
Output Current (HLL)
1.220
1.215
1.210
1.205
1.200
1.195
V_IN = 3.6V
L = 0.33µH
C_OUT = 2x47µF
1.190
0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40
OUTPUT CURRENT (A)
Output Voltage vs.
Output Current (CCM)
1.220
1.215
1.210
1.205
1.200
1.195
1.190
1.185
V_IN = 3.6V
L = 0.33µH
C_OUT = 2x47µF
1.180
0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6
OUTPUT CURRENT (A)
1.00
0.95
0.90
0.85
0.80
0.75
0.70
0.65
0.60
2.5
Enable Thresholds vs.
Input Voltage
ENABLE ON
ENABLE OFF
V_OUT = 1.2V
LOAD = 150mA
3.0 3.5 4.0 4.5 5.0 5.5
INPUT VOLTAGE (V)
Enable Thresholds vs.
Temperature
1.00
0.95
0.90
0.85
TURN ON
0.80
0.75
0.70
0.65
V_IN = 3.6V
V_OUT = 1.2V
LOAD = 150mA
TURN OFF
0.60
-40 -20
0 20 40 60 80 100 120
TEMPERATURE (°C)
November 5, 2013
4
Revision 1.1