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MAX5025 Datasheet(PDF) 5 Page - Maxim Integrated Products

Part No. MAX5025
Description  500kHz, 36V Output, SOT23, PWM Step-Up DC-DC Converters
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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 5 page
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500kHz, 36V Output, SOT23, PWM Step-Up
DC-DC Converters
_______________________________________________________________________________________
5
EXITING SHUTDOWN
MAX5025-28 toc10
5V
OUTPUT
VOLTAGE
20V/div
INDUCTOR
CURRENT
50mA/div
SHUTDOWN
VOLTAGE
5V/div
30V
5V
2ms/div
MAX5026, VCC = 5V, VOUT = 30V, ILOAD = 1mA.
CIRCUIT OF FIGURE 3
ENTERING SHUTDOWN
MAX5025-28 toc11
30V
OUTPUT
VOLTAGE
20V/div
SHUTDOWN
VOLTAGE
5V/div
5V
5V
0V
100ms/div
MAX5026, VCC = 5V, VOUT = 30V, ILOAD = 1mA.
CIRCUIT OF FIGURE 3
MAX5025-28 toc12
LX PIN
20V/div
VOUT
2mV/div
AC-COUPLED
IL
100mA/div
0V
0mA
1
µs/div
MAX5026, VCC = 5V, VOUT = 30V, ILOAD = 0.1mA.
CIRCUIT OF FIGURE 2
LIGHT-LOAD SWITCHING WAVEFORM
WITHOUT RC FILTER
MAX5025-28 toc13
LX PIN
20V/div
VOUT
1mV/div
AC-COUPLED
IL
100mA/div
0V
0mA
1
µs/div
MAX5026, VCC = 5V, VOUT = 30V, ILOAD = 0.1mA.
CIRCUIT OF FIGURE 3
LIGHT-LOAD SWITCHING WAVEFORM
WITH RC FILTER
MAX5025-28 toc14
LX PIN
20V/div
VOUT
5mV/div
AC-COUPLED
IL
200mA/div
0V
0mA
1
µs/div
MAX5026, VCC = 5V, VOUT = 30V, ILOAD = 2mA.
CIRCUIT OF FIGURE 2
MEDIUM-LOAD SWITCHING WAVEFORM
WITHOUT RC FILTER
MAX5025-28 toc15
LX PIN
20V/div
VOUT
1mV/div
AC-COUPLED
IL
200mA/div
0V
0mA
1
µs/div
MAX5026, VCC = 5V, VOUT = 30V, ILOAD = 2mA.
CIRCUIT OF FIGURE 3
MEDIUM-LOAD SWITCHING WAVEFORM
WITH RC FILTER
Typical Operating Characteristics (continued)
(VCC = 5V, VOUT = 30V, TA = +25°C, unless otherwise noted.)




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