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MAX15046B Evaluation Kit

Evaluates: MAX15046B

19-4920; Rev 0; 8/09

General Description

The MAX15046B evaluation kit (EV kit) is a fully assem-

bled and tested circuit board that contains all the com-

ponents necessary to evaluate the performance of the

MAX15046B 10A synchronous step-down controller. The

MAX15046 IC is available in a small 16-pin QSOP pack-

age with an exposed pad.

The MAX15046B EV kit requires a 5V to 40V input-

voltage range power supply that provides up to 7A for

normal operation. The MAX15046B EV kit output is con-

figured to 3.3V and delivers up to 10A output current.

The controller’s switching frequency is programmed to

350kHz. The MAX15046B EV kit includes PCB pads to

enable the circuit and to monitor the power-good output.

Features

S 5V to 40V (24V typ) Input Range

S Optional 4.5V to 5.5V Input Range

S 3.3V at 10A Output

S 350kHz Switching Frequency

S Enable Input

S Power-Good Output

S Fully Assembled and Tested

Ordering Information

+Denotes lead(Pb)-free and RoHS compliant.

Component List

PART TYPE

MAX15046BEVKIT+ EV Kit

DESIGNATION QTY DESCRIPTION

C1 1

100FF Q20%, 50V electrolytic capaci-

tor ( 8mm x 10.2mm)

Panasonic EEVFK1H101P

C2, C19 2

0.1FF Q10%, 50V X7R ceramic capaci-

tors (0603)

Murata GRM188R71H104K

C3 1

1FF Q10%, 50V X5R ceramic

capacitor (0805)

Murata GRM21BR71H105K

C4 1

4.7FF Q10%, 6.3V X5R ceramic

capacitor (0603)

Murata GRM188R60J475K

C5 1

2.2FF Q10%, 6.3V X5R ceramic

capacitor (0603)

Murata GRM188R60J225K

C6, C7 2

10FF Q20%, 50V X5R ceramic capaci-

tors (1210)

Taiyo Yuden UMK325BJ106MM

C8 1

0.47FF Q10%, 16V X7R ceramic

capacitor (0603)

Murata GRM188R71C474K

C9 1

1000pF Q5%, 50V C0G ceramic

capacitor (0805)

Murata GRM2165C1H102J

DESIGNATION QTY DESCRIPTION

C10, C11 2

100FF Q20%, 6.3V X5R ceramic

capacitors (1210)

Murata GRM32ER60J107M

C12 1

47FF Q10%, 6.3V X5R ceramic capaci-

tor (1206)

Murata GRM31CR60J476K

C13 1

68pF Q5%, 50V C0G

ceramic capacitor (0603)

Murata GRM1885C1H680J

C14 1

15pF Q5%, 50V C0G

ceramic capacitor (0603)

Murata GRM1885C1H150J

C15 1

1500pF Q10%, 50V C0G ceramic

capacitor (0603)

Murata GRM1885C1H152K

C16 1

220pF Q5%, 50V C0G ceramic capaci-

tor (0603)

Murata GRM1885C1H221J

C17, C20 0

Not installed, ceramic capacitors

(0603)

C18 0 Not installed, ceramic capacitor (0805)

Summary of content (7 pages)

PAGE 1
9-4920; Rev 0; 8/09 MAX15046B Evaluation Kit Features The MAX15046B evaluation kit (EV kit) is a fully assembled and tested circuit board that contains all the components necessary to evaluate the performance of the MAX15046B 10A synchronous step-down controller. The MAX15046 IC is available in a small 16-pin QSOP package with an exposed pad. S 5V to 40V (24V typ) Input Range The MAX15046B EV kit requires a 5V to 40V inputvoltage range power supply that provides up to 7A for normal operation.
PAGE 2
Evaluates: MAX15046B MAX15046B Evaluation Kit Component List (continued) DESIGNATION QTY D1 1 DESCRIPTION DESIGNATION QTY 0.5A, 60V Schottky diode (SOT23) Diodes, Inc. ZHCS506 (Top Mark: S56) DESCRIPTION R7 1 10I Q1% resistor (1210) Vishay (Dale) CRCW121010R00FNEA R8 0 Not installed, resistor (0603) JU1 1 2-pin header R9 1 32.4kI Q1% resistor (0603) JU2 1 3-pin header R10 1 22.6kI Q1% resistor (0603) L1 1 1.5FH, 27.5A inductor Vishay IHLP-4040DZ ER1R5M R11 1 3.
PAGE 3
MAX15046B Evaluation Kit Required Equipment • Adjustable 5V to 40V, 7A DC power supply • Electronic load capable of sinking up to 10A (e.g., HP6060B) • Two voltmeters The MAX15046B EV kit converter is configured to 3.3V and provides up to 10A output current. The switching frequency is set to 350kHz using resistor R14. The EV kit features PCB pads to evaluate the enable input signal (EN) and to monitor the power-good (PGOOD) output signal.
PAGE 4
Evaluates: MAX15046B MAX15046B Evaluation Kit Configuring the Output Voltage The MAX15046B EV kit’s VOUT voltage can be reconfigured between 0.6V to 0.85 x VIN. To configure the MAX15046B EV kit’s output voltage, refer to the Setting the Output Voltage section in the MAX15046 IC data sheet for instructions on selecting new resistor values. Capacitors C13–C16 and resistors R10 and R11 provide a compensation network for VOUT on the MAX15046B EV kit circuit.
PAGE 5
MAX15046B Evaluation Kit Evaluates: MAX15046B Figure 1.
PAGE 6
Evaluates: MAX15046B MAX15046B Evaluation Kit 1.0” 1.0” Figure 2. MAX15046B EV Kit Component Placement Guide— Component Side Figure 3. MAX15046B EV Kit PCB Layout—Component Side 1.0” Figure 4.
PAGE 7
MAX15046B Evaluation Kit Figure 5. MAX15046B EV Kit PCB Layout—PGND Layer 3 Evaluates: MAX15046B 1.0” 1.0” Figure 6. MAX15046B EV Kit PCB Layout—Solder Side Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.