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| MAX15118 Datasheet, PDF (7/23 Pages) Maxim Integrated Products – High-Efficiency, 18A, Current-Mode Synchronous Step-Down Regulator with Integrated Switches | |||
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MAX15118
High-Efficiency, 18A, Current-Mode Synchronous
Step-Down Regulator with Integrated Switches
Typical Operating Characteristics (continued)
(VIN = 5V, VOUT = 1.5V, CSS = 0.1µF, see the Typical Operating Circuits, TA = +25°C, unless otherwise noted.)
LOAD-TRANSIENT RESPONSE
(VIN = 3.3V, VOUT = 1.5V, ILOAD = 1.8A TO 16A)
MAX15118 toc14
PWM MODE
VOUT
50mV/div
AC-COUPLED
16A
IOUT
5A/div
1.8A
SWITCHING WAVEFORMS
(VIN = 5V, VOUT = 1.5V, ILOAD = 1.8A)
MAX15118 toc15
VOUT
20mV/div
AC-COUPLED
ILX
10A/div
VLX
2V/div
100µs/div
SWITCHING WAVEFORMS
(VIN = 3.3V, VOUT = 1.5V, ILOAD = 18A)
MAX15118 toc16
VOUT
20mV/div
AC-COUPLED
ILX
10A/div
VLX
2V/div
400ns/div
SWITCHING WAVEFORMS IN SKIP MODE
(VIN = 3.3V, VOUT = 1.5V, ILOAD = 10mA)
MAX15118 toc17
VOUT
20mV/div
AC-COUPLED
ILX
5A/div
VLX
2V/div
400ns/div
SHUTDOWN WAVEFORMS
(VIN = 3.3V, VOUT = 1.5V, ILOAD = 9A)
MAX15118 toc18
VENABLE
2V/div
100µs/div
VOUT
500mV/div
ILX
5A/div
VPGOOD
2V/div
2µs/div
SOFT-START WAVEFORMS
(PWM MODE, ILOAD = 10A)
MAX15118 toc19
VENABLE
2V/div
VOUT
1V/div
ILX
5A/div
VPGOOD
2V/div
1ms/div
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