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| MAX15039_11 Datasheet, PDF (8/19 Pages) Maxim Integrated Products – 6A, 2MHz Step-Down Regulator with Integrated Switches Open-Drain, Power-Good Output | |||
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6A, 2MHz Step-Down Regulator
with Integrated Switches
Typical Operating Characteristics (continued)
(Typical values are VIN = VEN = 5V, VOUT = 1.8V, RFREQ = 49.9kΩ, IOUT = 6A, TA = +25°C, circuit of Figure 1, unless otherwise noted.)
STARTING INTO PREBIASED OUTPUT
(MODE = VDD, VOUT = 2.5V, NO LOAD)
MAX15039 toc20
VEN
2V/div
0V
VOUT
1V/div
0V
VPWRGD
2V/div
0V
200μs/div
STARTING INTO PREBIASED OUTPUT
ABOVE NOMINAL SET POINT (VOUT = 1.5V)
MAX15039 toc22
VEN
2V/div
0V
VOUT
1V/div
VMODE = VDD,
NO LOAD
0V
VPWRGD
2V/div
0V
1ms/div
TRANSITION FROM SKIP MODE
TO FORCED PWM MODE
MAX15039 toc24
VMODE
5V/div
VLX
5V/div
VOUT
0.5V/div
STARTING INTO PREBIASED OUTPUT
(MODE = VDD/2, VOUT = 2.5V, NO LOAD)
MAX15039 toc21
VEN
2V/div
0V
VOUT
1V/div
0V
VPWRGD
2V/div
0V
200μs/div
STARTING INTO PREBIASED OUTPUT
ABOVE NOMINAL SET POINT (VOUT = 1.5V)
MAX15039 toc23
VEN
2V/div
0V
VOUT
1V/div
VOUT = 1.5V,
VMODE = VDD/2,
NO LOAD
0V
VPWRGD
2V/div
0V
1ms/div
TRANSITION FROM FORCED
PWM MODE TO SKIP MODE
MAX15039 toc25
VMODE
5V/div
VLX
5V/div
VOUT
0.5V/div
2ms/div
NO LOAD
0V
4ms/div
NO LOAD
0V
8 _______________________________________________________________________________________
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