MAX16956EVKIT データシートの表示（PDF） - Maxim Integrated

部品番号

コンポーネント説明

一致するリスト

MAX16956EVKIT

MAX16956 Evaluation Kit

Maxim Integrated 

MAX16956 Evaluation Kit

Evaluates: MAX16956

Component Suppliers

SUPPLIER

PHONE

WEBSITE

Coilcraft, Inc.

847-639-6400

www.coilcraft.com

Murata Americas

800-241-6574

www.murataamericas.com

Panasonic Corp.

800-344-2112

www.panasonic.com

TDK Corp.

847-803-6100

www.component.tdk.com

Würth Electronik GmbH & Co. KG

201-785-8800

www.we-online.com

Note: Indicate that you are using the MAX16956 when contacting these component suppliers.

Quick Start

Required Equipment

● MAX16956 EV kit

● 14V, 100mA power supply

● Electronic load capable of sinking up to 300mA

● Two digital voltmeters

Procedure

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

below to verify board operation. Caution: Do not turn on

the power supply until all connections are completed.

1) Verify that a shunt is installed on pins 1-2 of jumper

JU1 (forced PWM mode).

2) Verify that a shunt is installed on pins 1-2 of jumper

JU2 (output enabled).

3) Connect the positive and negative terminals of the

power supply to the VBAT and PGND test pads,

respectively.

4) Connect the positive and negative terminals of the

electronic load to the VOUT and PGND test pads,

respectively.

5) Connect a voltmeter across the VOUT and PGND test

pads.

6) Connect a voltmeter across the RESET and PGND

test pads.

7) Set the power-supply voltage to 14V.

8) Turn on the power supply.

9) Enable the electronic load.

10) Verify that the voltmeter connected to VOUT measures

approximately 3.3V.

11) Verify that the voltmeter connected to RESET measures

approximately 5V.

Detailed Description of Hardware

The MAX16956 EV kit is a fully assembled and tested

circuit board to evaluate the performance of the MAX16956

synchronous step-down controller. The EV kit operates

over a 3.5V to 36V wide input range, while using only 2µA

quiescent current at no load (internal divider versions).

The EV kit has a switching frequency of 2.1MHz and a

voltage output of 3.3V at 300mA.

The EV kit can be configured to operate in forced fixed-

frequency PWM mode or low-quiescent current skip mode

using jumper JU1. The EV kit can be enabled/disabled

using jumper JU2. The EV kit also provides a RESET test

point to monitor the voltage quality of the converter.

Configuring the Output Voltage (VOUT)

The EV kit comes standard with the fixed 3.3V output

version but can easily be modified to evaluate the 5V or

the programmable output versions of the device.

To evaluate the 5V version, simply replace U1 with the

fixed 5V version of the device. To evaluate the adjust-

able output version, remove the R1 short and connect a

resistive divider from the output (VOUT) to FB to AGND.

Select R2 (FB to AGND resistor) to be less than or equal

to 100kΩ. Calculate R1 (VOUT to FB resistor) with the

following equation:

R1

= R2 ×







VOUT

VFB



− 1



where VFB = 1V.

When evaluating other versions of the device, the induc-

tor, input capacitors, and output capacitors might need to

change. For further information, refer to the Applications

Information section in the MAX16956 IC data sheet.

www.maximintegrated.com

Maxim Integrated │  2

Share Link: