MAX15053_1107 Datasheet, PDF (6/21 Pages) Maxim Integrated Products – High-Efficiency, 2A, Current-Mode Synchronous, Step-Down Switching Regulator

High-Efficiency, 2A, Current-Mode
Synchronous, Step-Down Switching Regulator
Typical Operating Characteristics (continued)
(VIN = 5V, VOUT = 1.8V, ILOAD = 2A, Circuit of Figure 5, TA = +25NC, unless otherwise noted.)
SOFT-START WAVEFORMS (PWM)
(IOUT = 2A)
MAX15053 toc13a
VENABLE
5V/div
VOUT
1V/div
ILX
1A/div
SOFT-START WAVEFORMS (SKIP MODE)
(IOUT = 2A)
MAX15053 toc13b
VENABLE
5V/div
VOUT
1V/div
I_LX
1A/div
V_PGOOD
5V/div
200µs/div
QUIESCENT CURRENT
vs. INPUT VOLTAGE
100
90 ^VEN ^{= 0V}
80
70
60
50
40
30
20
10
0
2.7 3.2 3.7 4.2 4.7 5.2
INPUT VOLTAGE (V)
RMS INPUT CURRENT
vs. INPUT VOLTAGE
100
90
80
70
60
50
40
30
20
10
SHORT CIRCUIT ON OUTPUT
0
2.7 3.2 3.7 4.2 4.7 5.2
INPUT VOLTAGE (V)
200µs/div
V_PGOOD
5V/div
SHORT-CIRCUIT HICCUP MODE
MAX15053 toc15
IIN
500mA /div
V_OUT
1V/div
200µs/div
IOUT
5A/div
FB VOLTAGE vs. TEMPERATURE
606
604
602
600
598
596
594
-40
NO LOAD
-20 0 20 40 60 80
AMBIENT TEMPERATURE (°C)
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