Datasheet

MaximIntegrated │ 12
www.maximintegrated.com
MAX15062 60V, 300mA, Ultra-Small, High-Efciency,
Synchronous Step-Down DC-DC Converters
Typical Operating Characteristicsc (continued)
(V
IN
= 24V, V
GND
= 0V, C
IN
= C
VCC
= 1µF, V
EN/UVLO
= 1.5V, T
A
= +25°C, unless otherwise noted.)
BODE PLOT
MAX15062 toc35a
180
144
108
72
36
0
-36
-72
-108
-144
-180
50
40
30
20
10
0
-10
-20
-30
-40
-50
1k 10k
FREQUENCY (Hz)
GAIN (dB)
100k
FIGURE 7 APPLICATION CIRCUIT
V
OUT
= 2.5V
f
CR
= 43kHz,
PHASE MARGIN = 60°
GAIN
PHASE
PHASE (°)
BODE PLOT
MAX15062 toc35b
180
144
108
72
36
0
-36
-72
-108
-144
-180
50
40
30
20
10
0
-10
-20
-30
-40
-50
1k 10k
FREQUENCY (Hz)
GAIN (dB)
100k
FIGURE 8 APPLICATION CIRCUIT
V
OUT
= 12V
f
CR
= 36kHz,
PHASE MARGIN = 66°
GAIN
PHASE
PHASE (°)
BODE PLOT
MAX15062 toc34
180
144
108
72
36
0
-36
-72
-108
-144
-180
50
40
30
20
10
0
-10
-20
-30
-40
-50
1k 10k
FREQUENCY (Hz)
GAIN (dB)
100k
2 4 2 246 68 81 1
FIGURE 5 APPLICATION CIRCUIT
V
OUT
= 3.3V
f
CR
= 47kHz,
PHASE MARGIN = 59°
GAIN
PHASE
PHASE (°)
BODE PLOT
MAX15062 toc35
180
144
108
72
36
0
-36
-72
-108
-144
-180
50
40
30
20
10
0
-10
-20
-30
-40
-50
1k 10k
FREQUENCY (Hz)
GAIN (dB)
PHASE (°)
100k
2 4 2 246 68 81 1
FIGURE 6 APPLICATION CIRCUIT
V
OUT
= 5V
f
CR
= 47kHz,
PHASE MARGIN = 60°
GAIN
PHASE
SOFT-START WITH 3V PREBIAS
MAX15062 toc32
1ms/div
V
EN/ UVLO
5V/div
V
RESET
5V/div
V
OUT
1V/div
FIGURE 6
APPLICATION CIRCUIT
NO LOAD
PWM MODE
OVERLOAD PROTECTION
MAX15062 toc33
20ms/div
V
IN
20V/div
I
OUT
200mA/div
V
OUT
2V/div