MAX5025(2001) Ver la hoja de datos (PDF) - Maxim Integrated
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MAX5025 Datasheet PDF : 13 Pages
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500kHz, 36V Output, SOT23, PWM Step-Up
DC-DC Converters
Typical Operating Characteristics (continued)
(VCC = 5V, VOUT = 30V, TA = +25°C, unless otherwise noted.)
OUTPUT
VOLTAGE
20V/div
5V
EXITING SHUTDOWN
MAX5025-28 toc10
30V
INDUCTOR
CURRENT
50mA/div
5V
SHUTDOWN
VOLTAGE
5V/div
2ms/div
MAX5026, VCC = 5V, VOUT = 30V, ILOAD = 1mA.
CIRCUIT OF FIGURE 3
ENTERING SHUTDOWN
MAX5025-28 toc11
30V
OUTPUT
VOLTAGE
5V
20V/div
SHUTDOWN
VOLTAGE
5V
5V/div
0V
100ms/div
MAX5026, VCC = 5V, VOUT = 30V, ILOAD = 1mA.
CIRCUIT OF FIGURE 3
LIGHT-LOAD SWITCHING WAVEFORM
WITHOUT RC FILTER
MAX5025-28 toc12
LIGHT-LOAD SWITCHING WAVEFORM
WITH RC FILTER
MAX5025-28 toc13
VOUT
2mV/div
AC-COUPLED
VOUT
1mV/div
AC-COUPLED
LX PIN
20V/div
LX PIN
20V/div
0V
0V
IL
0mA
100mA/div
1µs/div
MAX5026, VCC = 5V, VOUT = 30V, ILOAD = 0.1mA.
CIRCUIT OF FIGURE 2
MEDIUM-LOAD SWITCHING WAVEFORM
WITHOUT RC FILTER
MAX5025-28 toc14
VOUT
5mV/div
AC-COUPLED
IL
0mA
100mA/div
1µs/div
MAX5026, VCC = 5V, VOUT = 30V, ILOAD = 0.1mA.
CIRCUIT OF FIGURE 3
MEDIUM-LOAD SWITCHING WAVEFORM
WITH RC FILTER
MAX5025-28 toc15
VOUT
1mV/div
AC-COUPLED
LX PIN
LX PIN
20V/div
20V/div
0V
0V
IL
0mA
200mA/div
1µs/div
MAX5026, VCC = 5V, VOUT = 30V, ILOAD = 2mA.
CIRCUIT OF FIGURE 2
IL
0mA
200mA/div
1µs/div
MAX5026, VCC = 5V, VOUT = 30V, ILOAD = 2mA.
CIRCUIT OF FIGURE 3
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