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For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

MAX16974 Evaluation Kit

General Description

The MAX16974 evaluation kit (EV kit) provides a proven

design to evaluate the MAX16974 high-voltage, 2.2MHz,

2A automotive step-down controller with low operating

current. It is designed to operate with 3.5V to 28V input

voltages, while using only 35µA quiescent current at no

load. The switching frequency is adjustable from 220kHz

to 2.2MHz and the output voltage is pin selectable at 5V

fixed or 1V to 10V adjustable. This EV kit is initially set up

to operate at 2.2MHz with a 5V output.

The EV kit PCB comes with a MAX16974AUE/V+ installed.

Features

S

Wide 3.5V to 28V DC Supply Range

S

42V Input Transient Tolerance

S

Proven PCB Layout

S

Fully Assembled and Tested

Ordering Information

Component List

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

19-5661; Rev 0; 12/10

*EP = Exposed pad.

/V denotes an automotive qualified part.

PART

TYPE

MAX16974EVKIT+

EV Kit

DESIGNATION

QTY

DESCRIPTION

CBST

1

0.1µF Q10%, 6.3V X5R ceramic

capacitor (0402)

TDK C1005X5R0J104K

CCOMP1

1

5600pF Q10%, 50V X7R ceramic

capacitor (0603)

Murata GRM188R71H562K

CCOMP2

0

Not installed, 120pF Q5%, 50V

C0G ceramic capacitor (0603)

Murata GRM1885C1H121J

CCRES

1

100pF Q5%, 50V C0G ceramic

capacitor (0603)

Murata GRM1885C1H101J

CFB1

0

Not installed, ceramic capacitor

(0603)

CIN1

1

47µF Q20%, 50V electrolytic

capacitor (D8)

Panasonic EEE-FK1H470XP

CIN2, CIN3

2

0.1µF Q10%, 50V X7R ceramic

capacitors (0603)

Murata GRM188R71H104K

CIN4, CIN5

2

4.7µF Q10%, 50V X7R ceramic

capacitors (1210)

Murata GRM32ER71H475K

COUT, COUT2

2

22µF Q20%, 10V X7R ceramic

capacitors (1210)

Murata GRM32ER71A226K

CSNUB

0

Not installed, 1000pF Q10%, 50V

X7R ceramic capacitor (0603)

Murata GRM188R71H102K

DESIGNATION

QTY

DESCRIPTION

CVL

1

2.2µF Q10%, 10V X7R ceramic

capacitor (0603)

Murata GRM188R71A225K

D1

1

3A, 60V Schottky diode

Diodes Inc. B360B

JU1

1

3-pin header

JU2, JU7

0

Not installed, 0I jumpers (0603)

JU3, JU6,

RTEST

3

0I Q5% resistors (0603)

L1

1

4.7µH Q20%, 2.8A, 20mI

inductor (7.0mm x 7.5mm)

Panasonic ETQP5M4R7YFM

LX

0

Not installed, multipurpose test

point

RCOMP

1

20kI Q1% resistor (0603)

RFB1, RFB2,

RFB3

0

Not installed, resistors (0603)

RFOSC

1

12.1kI Q1% resistor (0603)

RFSYNC

1

20kI Q5% resistor (0603)

RRESB

1

10kI Q5% resistor (0603)

RSNUB

0

Not installed, 3I Q5% resistor

(0603)

U1

1

High-voltage automotive step-

down converter (16 TSSOP-EP*)

Maxim MAX16974AUE/V+

—

1

Shunts

—

1

PCB: MAX16974 EVALUATION

KIT+