MAX730A Datasheet, PDF (5/16 Pages) Maxim Integrated Products – 5V, Step-Down, Current-Mode PWM DC-DC Converters

5V, Step-Down,
Current-Mode PWM DC-DC Converters
____________________________Typical Operating Characteristics (continued)
(Circuit of Figure 3, T_A = +25°C, unless otherwise noted.)
220
210
200
190
180
170
160
150
4
OSCILLATOR FREQUENCY vs.
SUPPLY VOLTAGE
(NOTE 3)
MAX730A
MAX744A
MAX738A
6 8 10 12 14 16
SUPPLY VOLTAGE (V)
MAX738A
OSCILLATOR FREQUENCY
vs. TEMPERATURE
200
(NOTE 4)
190
V+ = 6.0V
180
170
V+ = 16.0V
160
150
V+ = 12.0V
140
V+ = 9.0V
130
120
-60 -40 -20 0 20 40 60 80 100 120 140 160
TEMPERATURE (°C)
MAX730A
OSCILLATOR FREQUENCY
vs. TEMPERATURE
240
(NOTE 4)
220
V+ = 11.0V
200
V+ = 5.5V
180
160
V+ = 7.0V
V+ = 9.0V
140
0
-60 -40 -20 0 20 40 60 80 100 120 140 160
TEMPERATURE (°C)
MAX744A
OSCILLATOR FREQUENCY
vs. TEMPERATURE
210
(NOTE 4)
200
V+ = 6.0V
V+ = 16.0V
190
V+ = 9.0V
180
V+ = 12.0V
170
-60 -40 -20 0 20 40 60 80 100 120 140 160
TEMPERATURE (°C)
Note 3: Commercial temperature range external component values in Table 3.
Note 4: Wide temperature range external component values in Table 3.
Note 5: Standby and shutdown current includes all external component leakage currents. Capacitor leakage currents dominate at T_A > +85°C,
Sanyo OS-CON capacitors were used.
Note 6: Operation beyond the specifications listed in the electrical characteristics may exceed the power dissipation ratings of the device.
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