Datasheet

MaximIntegrated │ 5
Evaluates: MAX17503 in
3.3V Output-Voltage Application
MAX17503 3.3V Output Evaluation Kit
www.maximintegrated.com
Figure 5. MAX17503 3.3V Output Efficiency (DCM Mode)
Figure 6. MAX17503 3.3V Output Full Load Bode Plot
(V
IN
= 24V)
Figure 7. MAX17503 3.3V Output, No Load to 1A Load
Transient (PWM Mode)
3.3V OUTPUT, DCM MODE
EFFICIENCY vs. LOAD CURRENT
LOAD CURRENT (mA)
EFFIEIENCY (%)
30
40
50
60
70
80
90
100
20
100100 1000 2500
V
IN
= 48V
V
IN
= 36V
V
IN
= 24V
V
IN
= 12V
MODE = VCC
3.3V OUTPUT, 2.5A LOAD
CURRENT BODE PLOT
FREQUENCY (Hz)
GAIN (dB)
PHASE (°)
-30
-20
-10
0
10
20
30
40
50
60
-40
-60
-40
-20
0
20
40
60
80
100
120
-80
100k10k1k
CROSSOVER FREQUENCY = 62.5kHz
PHASE MARGIN = 61.2°
GAIN
PHASE
2 4 6 8 1 2 4 6 8 1 2
V
OUT
(AC)
50mV/div
I
OUT
1A/div
40µs/div
3.3V OUTPUT, PWM MODE (LOAD CURRENT
STEPPED FROM NO-LOAD TO 1A)
MODE = SGND
EV Kit Test Report (continued)