MAX17502GTEVKIT# Maxim Integrated, MAX17502GTEVKIT# Datasheet - Page 3

• Manufacturer Part Number: MAX17502GTEVKIT#
• Description: Power Management IC Development Tools MAX17502G Eval Kit
• Manufacturer: Maxim Integrated
• Type: DC/DC Converters, Regulators & Controllersr
• Series: MAX17502r

Specifications of MAX17502GTEVKIT#

• Rohs: yes
• Product: Evaluation Kits
• Tool Is For Evaluation Of: MAX17502G
• Input Voltage: 15 V to 60 V
• Output Voltage: 12 V
• Output Current: 1 A
• For Use With: MAX17502G

The device features an EN/UVLO input. For normal oper-
ation, no shunts should be installed across pins 1-2 or
2-3 on jumper JU1. To disable the output, install a shunt
across pins 2-3 on JU1 and the EN/UVLO pin is pulled
to GND. See Table 1 for JU1 settings.
The device offers an adjustable input undervoltage-
lockout level. Set the voltage at which the device turns
on with a resistive voltage-divider connected from VIN
to GND (see Figure 1). Connect the center node of the
divider to EN /UVLO.
Choose R1 to be 3.3MI and then calculate R2 as follows:
where V
to turn on. Ensure that V
Table 1. Regulator Enable (EN /UVLO) Jumper JU1 Settings
*Default position.
Figure 1. MAX17502G Load and Line Regulation
Maxim Integrated
SHUNT POSITION
Not installed*
Regulator Enable/Undervoltage-Lockout
Setting the Undervoltage-Lockout Level
INU
2-3
12.20
12.18
12.16
12.14
12.12
12.10
12.08
12.06
12.04
12.02
12.00
is the voltage at which the device is required
0
V
100
R2
IN
= 24V
LOAD vs. LINE REGULATION
200 300 400 500
=
Evaluates: MAX17502G in TDFN Package
(V
Connected to the center node of resistor-divider
INU
LOAD CURRENT (mA)
INU
R1 1.218
×
is higher than 0.8 x V
V
−
IN
1.218)
= 36V
V
600 700
IN
Level (EN /UVLO)
= 48V
Connected to GND
800
EN/UVLO PIN
R1 and R2
900
1000
OUT
.
The device offers an adjustable output voltage. Set the
output voltage with a resistive voltage-divider connected
from the positive terminal of the output capacitor (V
to GND (see Figure 6). Connect the center node of the
voltage-divider to FB.
To choose the values of R4 and R5, select the parallel
combination of R4 and R5, with R
R
Calculate R5 as follows:
Figure 2. MAX17502G Load and Line Regulation
P
is selected, calculate R4 as follows:
Enabled, UVLO level set through the R1 and R2
96
94
92
90
88
86
84
82
80
100
200 300 400 500
EFFICIENCY vs. LOAD CURRENT
Adjusting the Output Voltage
R5
R4
EV Kit Performance Report
V
MAX17502G OUTPUT
=
IN
=
= 24V
(V
LOAD CURRENT (mA)
R
resistor-divider
OUT
R4 0.9
P
Disabled
V
×
0.9
IN
×
V
= 36V
−
600 700
OUT
0.9)
P
less than 15kΩ. Once
V
800
IN
= 48V
900
1000
OUT
3
)