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MAX17501G Evaluation Kit

Evaluates: MAX17501G in TDFN Package

19-6519; Rev 0; 11/12

Ordering Information appears at end of data sheet.

Component List

*EP = Exposed pad.

General Description

The MAX17501G EV kit provides a proven design to

evaluate the MAX17501G high-efficiency, high-voltage,

synchronous step-down DC-DC converter in a TDFN

package. The EV kit generates 12V at load currents

up to 500mA from a 14V to 60V input supply. The EV

kit features a 600kHz fixed switching frequency for

optimum efficiency and component size. The EV kit

features a forced-PWM control scheme that provides

constant switching-frequency operation at all load and

line conditions.

Features

S Operates from a 14V to 60V Input Supply

12V Output Voltage

500mA Output Current

600kHz Switching Frequency

Enable/UVLO Input

Resistor-Programmable UVLO Threshold

Open-Drain RESET Output

Overcurrent and Overtemperature Protection

Proven PCB Layout

Fully Assembled and Tested

DESIGNATION QTY DESCRIPTION

C1 1

1FF Q10%, 100V X7R ceramic

capacitor (1206)

Murata GRM31CR72A105KA

C2 1

1FF Q10%, 6.3V X7R ceramic

capacitor (0603)

Murata GRM188R70J105K

C3 1

6800pF Q10%, 25V X7R ceramic

capacitor (0402)

Murata GRM155R71E682K

C4 1

4.7FF Q10%, 16V X7R ceramic

capacitor (1206)

Murata GRM31CR71C475K

C5 1

1200pF Q10%, 50V X7R ceramic

capacitor (0402)

Murata GRM155R71H122KA01D

C7 1

33FF, 80V aluminum electrolytic

(D = 8mm)

Panasonic EEEFK1K330P

C9 1

10pF Q5%, 50V C0G ceramic

capacitor (0402)

Murata GRM1555C1H100J

DESIGNATION QTY DESCRIPTION

JU1 1 3-pin header

L1 1

100FH, 1A inductor

(7.6mm x 7.6mm x 4.3mm)

Cooper Bussmann DR74-101-R

R1 1 3.32MI Q1% resistor (0402)

R2 1 316kI Q1% resistor (0402)

R3 1 27.4kI Q1% resistor (0402)

R4 1 174kI Q1% resistor (0402)

R5 1 14kI Q1% resistor (0402)

R6 1 100kI Q1% resistor (0402)

R7 1 71.5kI Q1% resistor (0402)

TP1, TP2 0 Not installed, test points

U1 1

Buck converter (10 TDFN-EP*)

Maxim MAX17501GATB+

— 1 Shunt

— 1

PCB: MAX17501GT EVALUATION

KIT

For pricing, delivery, and ordering information, please contact Maxim Direct at

1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.

Summary of content (8 pages)

PAGE 1
MAX17501G Evaluation Kit Evaluates: MAX17501G in TDFN Package General Description The MAX17501G EV kit provides a proven design to evaluate the MAX17501G high-efficiency, high-voltage, synchronous step-down DC-DC converter in a TDFN package. The EV kit generates 12V at load currents up to 500mA from a 14V to 60V input supply. The EV kit features a 600kHz fixed switching frequency for optimum efficiency and component size.
PAGE 2
MAX17501G Evaluation Kit Evaluates: MAX17501G in TDFN Package Component Suppliers SUPPLIER PHONE WEBSITE Cooper Bussmann 916-941-1117 www.cooperet.com Murata Electronics North America, Inc. 770-436-1300 www.murata-northamerica.com Panasonic Corp. 800-344-2112 www.panasonic.com Note: Indicate that you are using the MAX17501 when contacting these component suppliers. • MAX17501G EV kit Quick Start 3) Connect the function generator output to the EN /UVLO test loop.
PAGE 3
MAX17501G Evaluation Kit Evaluates: MAX17501G in TDFN Package Regulator Enable/Undervoltage-Lockout Level (EN /UVLO) The device features an EN/UVLO input. For normal operation, 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. Setting the Undervoltage-Lockout Level Adjusting the Output Voltage The device offers an adjustable output voltage.
PAGE 4
MAX17501G Evaluation Kit Evaluates: MAX17501G in TDFN Package EV Kit Performance Report (continued) VOUT (AC) 200mV/div FCR = 62kHz PM = 52° IOUT 100mA /div 4 5 6 7 8 9 1 2 40µs/div Figure 3. MAX17501G Full-Load Bode Plot (VIN = 24V) Figure 4. MAX17501G No Load to 250mA Load Transient VOUT (AC) 200mV/div IOUT 200mA /div 40µs/div Figure 5.
PAGE 5
MAX17501G Evaluation Kit Evaluates: MAX17501G in TDFN Package PGND 1 LX PGND 10 VOUT L1 100µH VOUT C4 4.7µF C8 OPEN VIN VIN C1 1µF VIN GND 9 R6 10k 1% U1 3 EN/UVLO RESET 8 EN/ UVLO VCC 4 VCC COMP C2 1µF GND C6 OPEN 12V/500mA TP2 5 FB SS EP 7 R4 14k 1% VOUT MAX17501 EN/ UVLO R4 174k 1% PGND 2 C7 33µF TP1 R3 27.4k 1% C9 10pF RESET R7 71.5k 1% GND C5 1200pF 6 C3 6800pF VIN 1 3 R1 3.32M 1% JU1 2 EN / UVLO R2 316k 1% Figure 6.
PAGE 6
MAX17501G Evaluation Kit Evaluates: MAX17501G in TDFN Package 1.0” Figure 7. MAX17501G EV Kit Component Placement Guide— Component Side 1.0” Figure 8. MAX17501G EV Kit PCB Layout—Component Side 1.0” Figure 9.
PAGE 7
MAX17501G Evaluation Kit Evaluates: MAX17501G in TDFN Package 1.0” Figure 10. MAX17501G EV Kit PCB Layout—Top Solder Mask 1.0” Figure 11. MAX17501G EV Kit PCB Layout—Bottom Solder Mask Ordering Information PART TYPE MAX17501GTEVKIT# EV Kit #Denotes RoHS compliant.
PAGE 8
MAX17501G Evaluation Kit Evaluates: MAX17501G in TDFN Package Revision History REVISION NUMBER REVISION DATE 0 11/12 DESCRIPTION Initial release PAGES CHANGED — Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time.