MAX15041EVKIT+ Maxim Integrated Products, MAX15041EVKIT+ Datasheet - Page 8

• Manufacturer Part Number: MAX15041EVKIT+
• Description: KIT EVAL MAX15041ETE
• Manufacturer: Maxim Integrated Products
• Type: DC/DC Switching Converters, Regulators & Controllersr

Specifications of MAX15041EVKIT+

• Board Size: 55 mm x 55 mm
• Operating Supply Voltage: 4.5 V to 28 V
• Product: Power Management Development Tools
• Dimensions: 55 mm x 55 mm
• Silicon Manufacturer: Maxim
• Silicon Core Number: MAX15041
• Kit Application Type: Power Management
• Application Sub Type: Synchronous Buck Converter
• Kit Contents: Board
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: MAX15041

Low-Cost, 3A, 4.5V to 28V Input, 350kHz, PWM
Step-Down DC-DC Regulator with Internal Switches
8
10, 11, 12
13, 14
15, 16
_______________________________________________________________________________________
PIN
—
1
2
3
4
5
6
7
8
9
PGOOD
NAME
COMP
SGND
PGND
V
BST
I.C.
EN
FB
SS
LX
EP
IN
DD
Internal LDO 5V Output. Supply input for the internal analog core. Bypass with a ceramic capacitor of at
least 1µF to SGND. See Figure 3.
Power-Good Open-Drain Output. PGOOD goes low if FB is below 545mV.
Enable Input. EN is a digital input that turns the regulator on and off. Drive EN high to turn on the regulator.
Connect to IN for always-on operations.
Voltage Error-Amplifier Output. Connect the necessary compensation network from COMP to SGND.
Feedback Input. Connect FB to the center tap of an external resistor-divider from the output to SGND to set
the output voltage from 0.606V to 90% of V
Soft-Start Input. Connect a capacitor from SS to SGND to set the soft-start time (see the Setting the Soft-
Start Time section).
Analog Ground. Connect to PGND plane at one point near the input bypass capacitor return terminal.
Internally Connected. Connect to SGND.
High-Side MOSFET Driver Supply. Bypass BST to LX with a 10nF capacitor. Connect an external diode
(see the Diode Selection section) from V
Inductor Connection. Connect the LX pin to the switched side of the inductor. LX is high impedance when
the IC is in shutdown mode, thermal shutdown mode, or V
Power Ground. Connect to the SGND PCB copper plane at one point near the input bypass capacitor
return terminal.
Input Power Supply. Input supply range is from 4.5V to 28V. Bypass with a ceramic capacitor of at least
22µF to PGND.
Exposed Pad. Connect to SGND externally. Solder the exposed pad to a large contiguous copper plane to
maximize thermal performance.
TOP VIEW
*EXPOSED PAD, CONNECT TO SGND.
PGND
PGND
IN
IN
13
14
15
16
+
12
1
MAX15041
11
2
TQFN
DD
IN
10
to BST.
3
.
*EP
FUNCTION
9
4
8
7
6
5
DD
I.C.
SGND
SS
FB
is below the UVLO threshold.
Pin Configuration
Pin Description