MAX15109 Datasheet, PDF (7/19 Pages) Maxim Integrated Products – High-Efficiency, 8A, Current-Mode Synchronous Step-Down Switching Regulator

High-Efficiency, 8A, Current-Mode Synchronous
Step-Down Switching Regulator with VID Control
Typical Operating Characteristics (continued)
(Circuit of Typical Application Circuit, TA = +25NC, unless otherwise noted.)
SHORT-CIRCUIT HICCUP MODE
MAX15109 toc14
IIN
2A/div
V_OUT
500mV/div
IOUT
10A /div
400µs/div
FB VOLTAGE vs. TEMPERATURE
(VOUT = 0.9V)
0.915
NO LOAD
0.910
0.905
0.900
0.895
VIN = 5V
V_IN = 3.3V
0.890
0.885
-40 -15
10
35
60
65
TEMPERATURE (°C)
RMS INPUT CURRENT
vs. SUPPLY VOLTAGE
0.8
SHORT-CIRCUIT ON OUTPUT
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
SUPPLY VOLTAGE (V)
SOFT-START WAVEFORMS
(EXTERNAL REFIN)
MAX15109 toc17
VSS
500mV/div
VOUT
500mV/div
V_PGOOD
2V/div
100µs/div
ENABLE INTO PREBIASED 0.5V OUTPUT
(8A LOAD)
MAX15109 toc18
VEN
2V/div
VOUT
500mV/div
ILX
5A/div
200µs/div
VPGOOD
2V/div
ENABLE INTO PREBIASED 0.5V OUTPUT
(NO LOAD)
MAX15109 toc19
VEN
2V/div
VOUT
500mV/div
ILX
2A/div
200µs/div
VPGOOD
2V/div
_______________________________________________________________________________________   7