MAX750A Ver la hoja de datos (PDF) - Maxim Integrated
Número de pieza
componentes Descripción
Lista de partido
MAX750A Datasheet PDF : 16 Pages
| |||
Adjustable, Step-Down,
Current-Mode PWM Regulators
_____________________________Typical Operating Characteristics (continued)
(Circuit of Figure 3, VOUT = 5V, TA = +25°C, unless otherwise noted.)
MAX758A
PEAK INDUCTOR CURRENT
vs. OUTPUT CURRENT
1000
L1 = 100µH
C4 = 300µF
800
MAX758A
PEAK INDUCTOR CURRENT
vs. OUTPUT CURRENT
700
L1 = 18µH
600 C4 = 1000µF
500
OSCILLATOR FREQUENCY
vs. SUPPLY VOLTAGE
220
(NOTE 3)
210
200
600
400
V+ = 6.6V
200
V+ 8.0V TO 16.0V
0
0 100 200 300 400 500 600 700 800
OUTPUT CURRENT (mA)
400
300
200
100
0
0
V+ = 10.2V
V+ = 8.0V
V+ = 6.6V
V+ = 6.0V
50 100 150 200 250 300
OUTPUT CURRENT (mA)
190
180
170
160
150
4
MAX750A
MAX758A
6 8 10 12 14 16
SUPPLY VOLTAGE (V)
MAX758A
NO-LOAD SUPPLY CURRENT vs. SUPPLY VOLTAGE
3.0
(NOTES 3, 5)
2.5
2.0
UNDERVOLTAGE
LOCKOUT V+ FALLING
1.5 (OPERATION ENDS)
1.0
UNDERVOLTAGE
0.5
LOCKOUT V+ RISING
(OPERATION BEGINS)
0
0 2 4 6 8 10 12 14 16
SUPPLY VOLTAGE (V)
NO-LOAD SUPPLY CURRENT
vs. TEMPERATURE
2.0
(NOTES 4, 5)
2.5
2.0 MAX750A, V+ = 9.0V
MAX758A, V+ = 12.0V
1.5
1.0
0.5
0
-60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
20
18 (NOTES 4, 5)
16
14
MAX758A ONLY, V+ = 16V
12 MAX758A ONLY, V+ = 12V
10
V+ = 9V
V+ = 6V
8
6
4
2
0
-60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
MAX750A
OSCILLATOR FREQUENCY vs. TEMPERATURE
240
(NOTE 4)
V+ = 11.0V
220
200
V+ = 5.5V
180
160
V+ = 7.0V
V+ = 9.0V
140
0
-60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
MAX758A
OSCILLATOR FREQUENCY vs. TEMPERATURE
200
(NOTE 4)
190
V+ = 6.0V
180
V+ = 16.0V
170
160
150
V+ = 12.0V
140
V+ = 9.0V
130
120
-60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
4 _______________________________________________________________________________________
Share Link: 