MAX15058 Datasheet, PDF (7/21 Pages) Maxim Integrated Products – High-Efficiency, 3A, Current-Mode Synchronous, Step-Down Switching Regulator

High-Efficiency, 3A, Current-Mode
Synchronous, Step-Down Switching Regulator
Typical Operating Characteristics (continued)
(VIN = 5V, VOUT = 1.8V, ILOAD = 3A, Circuit of Figure 5, TA = +25NC, unless otherwise noted.)
SOFT-START WAVEFORMS
(EXTERNAL REFIN) (PWM MODE)
MAX15058 toc18a
NO LOAD
VSS/REFIN
500mV/div
VOUT
1V/div
SOFT-START WAVEFORMS
(EXTERNAL REFIN) (SKIP MODE)
MAX15058 toc18b
NO LOAD
VSS/REFIN
500mV/div
VOUT
1V/div
200µs/div
I_LX
1A/div
V_PGOOD
5V/div
STARTING INTO A PREBIASED OUTPUT
(IOUT = 2A)
MAX15058 toc19
VENABLE
5V/div
VOUT
1V/div
PWM MODE
200µs/div
I_LX
1A/div
V_PGOOD
5V/div
STARTING INTO A PREBIASED OUTPUT
(NO LOAD)
MAX15058 toc20b
VENABLE
5V/div
V_OUT
1V/div
SKIP MODE
200µs/div
ILX
1A/div
VPGOOD
5V/div
200µs/div
I_LX
1A/div
V_PGOOD
5V/div
STARTING INTO A PREBIASED OUTPUT
(NO LOAD)
MAX15058 toc20a
VENABLE
5V/div
V_OUT
1V/div
PWM MODE
200µs/div
I_LX
1A/div
V_PGOOD
5V/div
STARTING INTO A PREBIASED OUTPUT
HIGHER THAN SET OUTPUT
MAX15058 toc21
1.8V
VOUT
500mV/div
IL
1A/div
VSS/REFIN
500mV/div
10I LOAD AT OUT
400µs/div
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