Datasheet > MAX16938

MAX16938

更新时间： 2024-09-17 02:52:03

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
8页	581K
描述
current-mode step-down converter with low operating current

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中文翻译

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MAX16938 数据手册

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Evaluates: MAX16936/MAX16938/

MAX16939

MAX16936 Evaluation Kit

General Description

Quick Start

The MAX16936 evaluation kit (EV kit) demonstrates

the MAX16936 high-voltage, current-mode step-down

converter with low operating current. The EV kit operates

over a wide 3.5V to 36V input range and the output is set

for 5V at 2.5A.

Required Equipment

● MAX16936 EV kit

● 14V, 1A DC power supply

● Electronic load capable of 2.5A

● Digital voltmeter (DVM)

The EV kit comes with the MAX16936RAUEA/V+ installed.

Features

Procedure

● Wide 3.5V to 36V Input Supply Range

● Forced-PWM or Skip-Mode Operation

● Programmable Switching Frequency

● Power-Good Output

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

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

supplies until all connections are made.

1) Verify that jumpers JU1 and JU2 are in their default

positions, as shown in Table 1 and Table 2.

● Proven PCB Layout

2) Connect the power supply between the EXT_VBAT

and nearest PGND test points.

● Fully Assembled and Tested

3) Connect the 2.5A electronic load between the OUT

and nearest PGND test points.

4) Connect the DVM between the OUT and nearest

PGND test points.

5) Turn on the power supply.

6) Enable the electronic load.

Ordering Information appears at end of data sheet.

7) Verify that the voltage at the OUT test point is approxi-

mately 5V.

Table 1. EN Configuration (JU1)

Table 2. Mode of Operation (JU2)

SHUNT

POSITION

DESCRIPTION

POSITION

MODE PIN

MODE

Connects the EN pin to the voltage at SUP

for normal operation.

Forced-PWM mode

(device syncs to the

internal clock)

1-2*

Connected to BIAS

Connects the EN pin to ground to enter

shutdown mode.

2-3

Connected to

AGND

2-3

SKIP mode

*Default position.

Forced-PWM mode

(device syncs to an

external clock)

Connected to an

external clock

Not installed

*Default position.

19-6771; Rev 2; 3/20

12 3 4 5 6 7 8

中文翻译

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与MAX16938相关器件

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MAX16939	MAXIM	获取价格	current-mode step-down converter with low operating current
MAX16939	ADI	获取价格	36V, 3.5A, 2.2MHz Step-Down Converters with 2
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MAX16939ATERB/V+	MAXIM	获取价格	Switching Regulator, Current-mode, 6.2A, 2200kHz Switching Freq-Max, BICMOS, TQFN-16
MAX16939ATESA/V+	MAXIM	获取价格	Switching Regulator, Current-mode, 6.2A, 2200kHz Switching Freq-Max, BICMOS, TQFN-16
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MAX1693EUB	MAXIM	获取价格	USB Current-Limited Switches with Fault Blanking
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MAX1693EUB-T	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, PDSO10, MICRO MAX PACKAGE-10
MAX1693H	MAXIM	获取价格	USB Current-Limited Switches with Fault Blanking