MAX38904BEVKIT [MAXIM]

MAX38904B TDFN Evaluation Kit;


型号：	MAX38904BEVKIT
厂家：	MAXIM INTEGRATED PRODUCTS
描述：	MAX38904B TDFN Evaluation Kit
文件：	总6页 (文件大小：414K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Click here for production status of speciﬁc part numbers.

Evaluates: MAX38904B

MAX38904B TDFN Evaluation Kit

General Description

Quick Start

The MAX38904B TDFN evaluation kit (EV kit) evaluates

the MAX38904B in a TDFN package. The MAX38904B

is a low noise linear regulator. The EV kit operates over

an input range of 1.7V to 5.5V and provides a resistor

conﬁgurable output voltage range from 0.6V to 5.0V. The

EV kit can deliver up to 2A of current.

Required Equipment

● MAX38904B TDFN EV kit

● 5.5V, 5A DC power supply

● Electronic load capable of 2A

● Digital voltmeter (DVM)

Features

● Evaluates the MAX38904B IC in a 10-pin

Procedure

The EV kit is fully assembled and tested. Follow the steps

below to verify board operation. Caution: Do not turn

on power supply until all connections are completed.

(3mm x 3mm) TDFN

● 1.7V to 5.5V Input Range

1) Verify that jumper JU101 is shunted on pins 1 and 2

● 0.6V to 5.0V Resistor Configurable Output Voltage

(Default Output Set to 3.3V)

(EV kit enabled).

2) Connect the 5.5V power supply between the IN and

● Up to 2A Output Current

nearest GND terminal posts.

● Proven 2-Layer 1-oz Copper PCB Layout

● Demonstrates Compact Solution Size

● Fully Assembled and Tested

3) Connect the 2A electronic load between the OUT and

nearest GND terminal posts.

4) Connect the DVM between the OUT and nearest

GND terminal posts.

MAX38904B TDFN EV Kit Files

5) Turn on the power supply.

FILE

DECRIPTION

6) Verify that the voltage at the OUT terminal post is

approximately 3.3V.

EV Kit Bill of

Material

MAX38904B TDFN EV Kit BOM

7) Decrease the power supply to 3.6V (To minimize

MAX38904B TDFN EV Kit PCB Layout

EV Kit Layout

power dissipation at full load).

MAX38904B TDFN EV Kit Schematic

EV Kit Schematic

8) Enable the electronic load.

9) Verify that the voltage at the OUT terminal post is

3.3V within the device and the resistor divider’s

accuracy speciﬁcations.

Ordering Information appears at end of data sheet.

319-100302; Rev 0; 2/19

Evaluates: MAX38904B

MAX38904B TDFN Evaluation Kit

EN (Enable)

Detailed Description of Hardware

The EV kit provides a jumper JU101 to enable or disable

the MAX38904B. Refer to Table 1 for jumper setting of

jumper JU101.

The MAX38904B TDFN EV kit evaluates the MAX38904B

in a TDFN package. The MAX38904B is a low noise

linear regulator that delivers 2A of output current with

only 5.1µV

of output noise from 10Hz to 100kHz.

RMS

This regulator requires only 100mV of input-to-output

headroom at full load.

Table 1. EN (JU101)

SHUNT POSITION

DESCRIPTION

Enabled. EN = IN*

Disabled. EN = GND

The MAX38904B TDFN EV kit operates over an input

range of 1.7V to 5.5V. The EV kit comes with the

MAX38904BATD+ installed and the output voltage is set

to 3.3V by 1% accurate feedback resistors R101 and

R102. The EV kit output can be reconfigured to other

voltages from 0.6V to 5.0V by replacing feedback

resistors R101 and R102. Refer to the MAX38904 IC data

sheet for feedback resistor calculation.

1-2*

2-3

*Default position.

Component Suppliers

Ordering Information

SUPPLIER

WEBSITE

www.kemet.com

www.murata.com

www.tdk.com

PART

TYPE

Kemet

MAX38904BEVK#TDFN

#Denotes RoHS

EV Kit

Murata/TOKO

TDK

Samsung Electro-Mechanics

America. Inc.

www.samsungsem.com

Note: Indicate that you are using the MAX38904B when

contacting these component suppliers.

Maxim Integrated

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Evaluates: MAX38904B

MAX38904B TDFN Evaluation Kit

MAX38904B TDFN EV Kit Bill of Materials

ITEM

REF_DES

DNI/DNP

QTY

MFG PART #

MANUFACTURER

VALUE

DESCRIPTION

C0603C473K5RAC;

GRM188R71H473KA61;

GCM188R71H473KA55;

CGA3E2X7R1H473K080AA

KEMET;MURATA;

MURATA;TDK

CAPACITOR; SMT (0603); CERAMIC CHIP; 0.047µUF; 50V;

TOL = 10%; MODEL = X7R; TG = -55°C TO +125°C; TC = X7R

C101

—

0.047µF

CAPACITOR; SMT (1206); CERAMIC CHIP; 22µF; 6.3V;

TOL = 10%; MODEL = GRM SERIES; TG = -55°C TO +125°C; TC = X7R

C102, C103

—

GRM31CR70J226K

108-0740-001

MURATA

22µF

EMERSON

NETWORK POWER

CONNECTOR; MALE; PANELMOUNT;

BANANA JACK; STRAIGHT; 1PIN

GND, IN, OUT

108-0740-001

GND_PAD, IN_PAD,

OUT_PAD

EVK KIT PARTS; MAXIM PAD; WIRE; NATURAL; SOLID;

WEICO WIRE; SOFT DRAWN BUS TYPE-S; 20AWG

—

9020 BUSS

PEC03SAAN

5002

WEICO WIRE

SULLINS

MAXIMPAD

PEC03SAAN

N/A

JU101

POK

CONNECTOR; MALE; THROUGH HOLE; BREAKAWAY; STRAIGHT; 3PINS

TEST POINT; PIN DIA = 0.1IN; TOTAL LENGTH = 0.3IN;

BOARD HOLE = 0.04IN; WHITE; PHOSPHOR BRONZE WIRE SILVER;

KEYSTONE

R101

R102

—

CRCW0603909KFK

ERJ-3EKF2003

VISHAY DALE

PANASONIC

909K

200K

RESISTOR; 0603; 909KΩ; 1%; 100PPM; 0.1W; THICK FILM

RESISTOR; 0603; 200KΩ; 1%; 100PPM; 0.1W; THICK FILM

CRCW0603100KFK;

RC0603FR-07100KL;

RC0603FR-13100KL;

ERJ-3EKF1003;

VISHAY;YAGEO;

YAGEO;PANASONIC;

YAGEO

R103

SU1

—

100K

RESISTOR; 0603; 100K; 1%; 100PPM; 0.10W; THICK FILM

AC0603FR-07100KL

TEST POINT; JUMPER; STR; TOTAL LENGTH = 0.256IN; BLACK;

INSULATION = PBT CONTACT = PHOSPHOR BRONZE;

COPPER PLATED TIN OVERALL

SULLINS

ELECTRONICS CORP.

STC02SYAN

TEST POINT; PIN DIA = 0.1IN; TOTAL LENGTH = 0.3IN; BOARD HOLE = 0.04IN;

BLACK; PHOSPHOR BRONZE WIRE SILVER PLATE FINISH;

TP_GND

TP_OUT

—

5001

5000

KEYSTONE

MAXIM

N/A

TEST POINT; PIN DIA = 0.1IN; TOTAL LENGTH = 0.3IN; BOARD HOLE = 0.04IN;

RED; PHOSPHOR BRONZE WIRE SILVER PLATE FINISH;

EVKIT PART - IC; MAX38904B-ATD+; 2A LOW NOISE LDO

LINEAR REGULATOR; PACKAGE OUTLINE DEVICE: 21-0137

MAX38904B-ATD+

PCB

C104

R104

R105

—

MAX38904BTDFN

MAXIM

N/A

PCB

OPEN

SHORT

PCB:MAX38904BTDFN

DNP

N/A

PACKAGE OUTLINE 0603 NON-POLAR CAPACITOR

PACKAGE OUTLINE 0603 RESISTOR

N/A

TOTAL

Maxim Integrated

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Evaluates: MAX38904B

MAX38904B TDFN Evaluation Kit

MAX38904B TDFN EV Kit Schematic

1 5

Maxim Integrated

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Evaluates: MAX38904B

MAX38904B TDFN Evaluation Kit

MAX38904B TDFN EV Kit PCB Layout Diagrams

1.0’’

MAX38904B TDFN EV Kit PCB Layout—Top Silkscreen

MAX38904B TDFN EV Kit PCB Layout—Bottom Layer

1.0’’

MAX38904B TDFN EV Kit PCB Layout—Top Layer

MAX38904B TDFN EV Kit PCB Layout—Bottom Silkscreen

Maxim Integrated

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Evaluates: MAX38904B

MAX38904B TDFN Evaluation Kit

Revision History

REVISION REVISION

PAGES

CHANGED

DESCRIPTION

NUMBER

DATE

2/19

Initial release

—

For pricing, delivery, and ordering information, please visit Maxim Integrated’s online storefront at https://www.maximintegrated.com/en/storefront/storefront.html.

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.

Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.

2019 Maxim Integrated Products, Inc.

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MAX38904BEVKIT [MAXIM]

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