Datasheet

MaximIntegrated │ 8
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.)
SWITCHING FREQUENCY
vs. TEMPERATURE
MAX15062 toc18
TEMPERATURE (°C)
SWITCHING FREQUENCY (kHz)
480
460
500
520
540
560
440
-40
12010060 800 20 40-20
LOAD TRANSIENT RESPONSE,
PFM MODE (LOAD CURRENT STEPPED
FROM 5mA TO 150mA)
MAX15062 toc20
FIGURE 5
APPLICATION CIRCUIT
V
OUT
= 3.3V
100µs/div
V
OUT
(AC)
100mV/div
I
OUT
100mA/div
TEMPERATURE (°C)
5040302010
91
92
93
94
95
96
97
98
90
0 60
RESET THRESHOLD
vs. TEMPERATURE
MAX15062 toc19
RESET THRESHOLD (%)
FALLING
RISING
LOAD TRANSIENT RESPONSE,
PFM MODE (LOAD CURRENT STEPPED
FROM 5mA TO 150mA)
MAX15062 toc21
FIGURE 6
APPLICATION CIRCUIT
V
OUT
= 5V
100µs/div
V
OUT
(AC)
100mV/div
I
OUT
100mA/div
SWITCH CURRENT LIMIT
vs. TEMPERATURE
MAX15062 toc16
TEMPERATURE (°C)
SWITCH CURRENT LIMIT (mA)
100 120-20 0 20 6040 80
250
300
350
400
450
500
550
600
200
-40
SWITCH PEAK CURRENT LIMIT
SWITCH NEGATIVE CURRENT LIMIT
EN/UVLO THRESHOLD
vs. TEMPERATURE
MAX15062 toc17
TEMPERATURE (°C)
EN/UVLO THRESHOLD VOLTAGE (V)
1.10
1.12
1.14
1.16
1.18
1.20
1.22
1.24
1.08
-40
12010060 800 20 40-20
RISING
FALLING