Datasheet > MAX1864EVKIT

MAX1864EVKIT

更新时间： 2024-11-04 23:45:51

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
4页	139K
描述
Evaluation Kit for the MAX1864

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中文翻译

获取价格

数据手册

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MAX1864EVKIT 数据手册

19-2168; Rev 0; 9/01

MAX1864 Evaluation Kit

General Description

Features

ꢀ 8V to 24V Input Voltage Range

ꢀ Preset 3.3V Main Output Voltage

ꢀ 1A Main Output Current

The MAX1864 evaluation kit (EV kit) demonstrates the

MAX1864’s standard application circuit. This EV kit

operates from 8V to 24V, generating three positive out-

put voltages.

The MAX1864 EV kit includes a current-mode synchro-

nous step-down controller and two positive regulator

gain blocks. The main synchronous step-down con-

troller provides a 3.3V output voltage with 1A output

current from an 8V to 24V input voltage range. The pos-

itive regulator gain blocks use an external PNP pass

transistor to generate 2.5V with 300mA output current

from the main 3.3V output, and 5V with 100mA output

current using coupled windings from the step-down

converter. The EV kit operates at 200kHz switching fre-

quency, allowing the use of low-cost aluminum elec-

trolytic capacitors and a low-cost power transformer.

ꢀ 200kHz Switching Frequency

ꢀ No Current-Sense Resistor

ꢀ Linear Regulator Output Voltages

2.5V at 300mA

5.0V at 100mA

ꢀ Adjustable Output Voltages

ꢀ Power-Good Output

ꢀ 16-Pin QSOP Package

ꢀ Low-Cost Components

ꢀ Fully Assembled and Tested

This EV kit is a fully assembled and tested circuit

board. It also allows the evaluation of other main output

voltages in the 1.236V to 5.5V range by installing feed-

back resistors R8 and R9.

Ordering Information

PART

TEMP. RANGE

IC PACKAGE

MAX1864EVKIT

0°C to +70°C

16 QSOP

Component List

DESIGNATION

QTY

DESCRIPTION

DESIGNATION

QTY

DESCRIPTION

100µF, 35V aluminum electrolytic

capacitor

Sanyo 35MV100AX

470µF, 10V aluminum electrolytic

capacitors

47k

5ꢀ resistor (0805)

5ꢀ resistors (0805)

1ꢀ resistors (0805)

1ꢀ resistor (0805)

5ꢀ resistor (0805)

R2, R5

220

R3, R4, R12

10k

30.1k

100k

C2, C9

Sanyo 10MV470AX

0.1µF ceramic capacitor (0805)

R8, R10, R11

Not installed (0805)

Not installed (short PC trace)

1µF, 10V X5R ceramic capacitor

(0805)

Taiyo Yuden LMK212BJ105MG

R13, R14

5ꢀ resistors (0805)

Schottky diode

Central Semiconductor CMPSH-3

8200pF ceramic capacitor (0805)

10µF, 6.3V X5R ceramic

capacitors (1210)

Taiyo Yuden JMK325BJ106MN

or TDK C3216X5R0J106M

0.5A Schottky diode

Nihon EP05Q03L or

ON Semiconductor (Motorola)

MBR0540

C6, C7, C8,

C12

C10

C11

4700pF ceramic capacitor (0805)

2200pF ceramic capacitor (0805)

Dual N-channel MOSFET

International Rectifier IRF7303 or

Fairchild NDS9956A

N1A, N1B

1µF, 25V X7R ceramic capacitor

(1206)

Taiyo Yuden TMK316BJ105ML

or TDK C3216X7R1E105M

PNP transistor (DPAK)

Fairchild KSH30

C13

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

12 3 4

中文翻译

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与MAX1864EVKIT相关器件

型号	品牌	获取价格	描述	数据表
MAX1864-MAX1865	MAXIM	获取价格	xDSL/Cable Modem Triple/Quintuple Output Power Supplies
MAX1864TEEE	MAXIM	获取价格	xDSL/Cable Modem Triple/Quintuple Output Power Supplies
MAX1864TEEE+	MAXIM	获取价格	Switching Controller, Current-mode, 0.5A, 240kHz Switching Freq-Max, BICMOS, PDSO16, 0.150
MAX1864UEEE	MAXIM	获取价格	xDSL/Cable Modem Triple/Quintuple Output Power Supplies
MAX1864UEEE+	MAXIM	获取价格	Switching Controller, Current-mode, 0.5A, 120kHz Switching Freq-Max, BICMOS, PDSO16, 0.150
MAX1864UEEE+T	MAXIM	获取价格	Switching Controller, Current-mode, 0.5A, 120kHz Switching Freq-Max, BICMOS, PDSO16, 0.150
MAX1864UEEE-T	MAXIM	获取价格	Switching Controller, Current-mode, 0.5A, 120kHz Switching Freq-Max, BICMOS, PDSO16, 0.150
MAX1865	MAXIM	获取价格	xDSL/Cable Modem Triple/Quintuple Output Power Supplies
MAX1865TEEP	MAXIM	获取价格	xDSL/Cable Modem Triple/Quintuple Output Power Supplies
MAX1865TEEP+	MAXIM	获取价格	Switching Controller, Current-mode, 0.5A, 240kHz Switching Freq-Max, BICMOS, PDSO20, 0.150

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