Datasheet

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General Description

The MAX16952 evaluation kit (EV kit) is a fully assem-

bled and tested PCB that contains all the components

necessary to evaluate the performance of the MAX16952

synchronous PWM step-down controller. The device is

available in a 16-pin TSSOP package and features an

exposed pad for enhanced thermal dissipation.

The EV kit requires a 6V to 36V power supply for normal

operation. The EV kit output is configured to 5V and can

deliver up to 5A output current. The EV kit can be easily

reconfigured to operate the controller in continuous PWM

mode, SKIP mode, or external synchronization operation.

The controller switching frequency is set to 2.2MHz. The

EV kit includes a jumper to enable the circuit and an LED

to monitor the power-good output.

Features

S 6V to 36V Input Range

S 5V at Up to 5A Output

S 2.2MHz Switching Frequency

S Selectable Forced Fixed-Frequency PWM Mode,

SKIP Mode, or External Synchronization

S Power-Good LED Indicator

S Enable Input

S Cycle-by-Cycle Current Limit and Thermal

Protection

S Proven PCB Layout

S Fully Assembled and Tested

DESIGNATION QTY DESCRIPTION

BIAS, EN, FSYNC,

OUT (x2),

SUP (x2)

7 Red multipurpose test points

C1, C4 2

0.1FF Q10%, 50V X7R ceramic

capacitors (0603)

Murata GRM188R71H104K

C2 1

47FF Q20%, 50V electrolytic

capacitor (D8)

Panasonic EEE-FK1H470XP

C5, C9 0

Not installed, ceramic

capacitors (0603)

C6, C7 2

47FF Q20%, 6.3V X7R ceramic

capacitors (1210)

Murata GRM32ER70J476M

C8 1

2.2FF Q10%, 10V X7R ceramic

capacitor (0603)

Murata GRM188R71A225K

C10 1

3300pF Q10%, 50V X7R

ceramic capacitor (0603)

Murata GRM188R71H332K

C11, C13 2

4.7FF Q10%, 50V X7R ceramic

capacitors (1206)

Murata GRM31CR71H475K

D1 1

60V, 3A Schottky diode (SMB)

Diodes Inc. B360B-13-F

D2 1 Red LED (0603)

DESIGNATION QTY DESCRIPTION

D3 0

Not installed, Schottky diode

(3 SOT23)

JU1 1 3-pin header

JU2 1 2-pin header

L1 1

1.5FH, 18A inductor

Würth 7443330150

N1, N2 2

40V, 7.6A n-channel MOSFETs

(8 SO)

Fairchild FDS8449

PGND (x5), SGND 6 Black multipurpose test points

R2, R5, R6 0 Not installed, resistors (0603)

R4 1

0.015I Q1%, 1/2W resistor

(1206)

IRC LRF1206LF-01-R015-F

R7, R12 2

0I Q5% resistors (0603)

R8 1

13.0kI Q1% resistor (0603)

R9 1

30kI Q5% resistor (0603)

R10 1

10kI Q5% resistor (0603)

R11 1

51.1kI Q1% resistor (0603)

U1 1

Synchronous buck converter

(16 TSSOP-EP)

Maxim MAX16952AUE/V+

— 2 Shunts

— 1

PCB: MAX16952 EVALUATION

KIT

MAX16952 Evaluation Kit

Evaluates: MAX16952

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.

Component List

19-5771; Rev 1; 1/12

Ordering Information appears at end of data sheet.

Summary of content (8 pages)

PAGE 1
9-5771; Rev 1; 1/12 MAX16952 Evaluation Kit Evaluates: MAX16952 General Description Features The MAX16952 evaluation kit (EV kit) is a fully assembled and tested PCB that contains all the components necessary to evaluate the performance of the MAX16952 synchronous PWM step-down controller. The device is available in a 16-pin TSSOP package and features an exposed pad for enhanced thermal dissipation. S 6V to 36V Input Range The EV kit requires a 6V to 36V power supply for normal operation.
PAGE 2
MAX16952 Evaluation Kit Evaluates: MAX16952 Component Suppliers SUPPLIER PHONE Diodes Incorporated 805-446-4800 WEBSITE www.diodes.com Fairchild Semiconductor 888-522-5372 www.fairchildsemi.com IRC, Inc. 361-992-7900 www.irctt.com Murata Electronics North America, Inc. 770-436-1300 www.murata-northamerica.com Panasonic Corp. 800-344-2112 www.panasonic.com Würth Electronik GmbH & Co. KG 201-785-8800 www.we-online.
PAGE 3
MAX16952 Evaluation Kit Evaluates: MAX16952 Table 1. Jumper Descriptions (JU1, JU2) JUMPER SHUNT POSITION 1-2 Connects FSYNC to VBIAS to enable continuous PWM mode. 2-3* Connects FSYNC to AGND to enable SKIP mode under light-load conditions. JU1 When FSYNC is unconnected or when a clock source is present, continuous PWM mode is enabled. FSYNC can be used to synchronize with other supplies when a clock source is present. Open JU2 DESCRIPTION Closed Connects EN to AGND (shutdown).
PAGE 4
MAX16952 Evaluation Kit Evaluates: MAX16952 Figure 1.
PAGE 5
MAX16952 Evaluation Kit Evaluates: MAX16952 1.0” Figure 2. MAX16952 EV Kit Component Placement Guide— Component Side 1.0” Figure 3. MAX16952 EV Kit PCB Layout—Component Side 1.0” Figure 4.
PAGE 6
MAX16952 Evaluation Kit Evaluates: MAX16952 1.0” Figure 5. MAX16952 EV Kit PCB Layout—PGND and SGND Layer 3 1.0” Figure 6. MAX16952 EV Kit PCB Layout—Solder Side 1.0” Figure 7.
PAGE 7
MAX16952 Evaluation Kit Evaluates: MAX16952 Ordering Information PART TYPE MAX16952EVKIT# EV Kit #Denotes RoHS compliant.
PAGE 8
MAX16952 Evaluation Kit Evaluates: MAX16952 Revision History REVISION NUMBER REVISION DATE 0 2/11 Initial release — 1/12 Changed VOUT max from 12V to 10V in the Configuring the Output Voltage (OUT) section to match the IC data sheet 3 1 DESCRIPTION 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.