Datasheet > MAX8506

MAX8506

更新时间： 2024-11-17 22:55:11

品牌	Logo	应用领域
美信 - MAXIM		转换器手机
页数	文件大小	规格书
12页	385K
描述
PWM Step-Down DC-DC Converters with 75m? Bypass FET for WCDMA and cdmaOne Handsets

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MAX8506 数据手册

19-2918; Rev 1; 1/04

PWM Step-Down DC-DC Converters with 75mΩ

Bypass FET for WCDMA and cdmaOne Handsets

General Description

Features

The MAX8506/MAX8507/MAX8508 integrate a PWM step-

down DC-DC regulator and a 75mΩ (typ) bypass FET to

power the PA in WCDMA and cdmaOne™ cell phones.

The supply voltage range is from 2.6V to 5.5V, and the

guaranteed output current is 600mA. One megahertz

PWM switching allows for small external components.

♦ Integrated 75mΩ (typ) Bypass FET

♦ 38mV Dropout at 600mA Load

♦ Up to 94% Efficiency

♦ Dynamically Adjustable Output from 0.4V to 3.4V

(MAX8506, MAX8507)

The MAX8506 and MAX8507 are dynamically controlled

to provide varying output voltages from 0.4V to 3.4V. The

MAX8508 is externally programmed for fixed 0.75V to

3.4V output. Digital logic enables a high-power (HP)

bypass mode that connects the output directly to the bat-

tery for all versions. The MAX8506/MAX8507/MAX8508

are designed so the output settles in less than 30µs for a

full-scale change in output voltage and load current.

♦ Externally Fixed Output from 0.75V to 3.4V

(MAX8508)

♦ 1MHz Fixed-Frequency PWM Switching

♦ 600mA Guaranteed Output Current

♦ Shutdown Mode 0.1µA (typ)

♦ 16-Pin Thin QFN (4mm x 4mm, 0.8mm max Height)

The MAX8506/MAX8507/MAX8508 are offered in 16-pin

4mm x 4mm thin QFN packages (0.8mm max height).

Ordering Information

Applications

WCDMA/NCDMA Cell Phones

PART

TEMP RANGE

-40°C to +85°C

PIN-PACKAGE

16 Thin QFN

Wireless PDAs, Palmtops, and Notebook

Computers

MAX8506ETE

MAX8507ETE

MAX8508ETE

Wireless Modems

Pin Configurations appear at end of data sheet.

cdmaOne is a trademark of CDMA Development Group.

Typical Application Circuits (MAX8506/MAX8507)

OUTPUT

0.4V TO 3.4V OR V

INPUT

2.6V TO 5.5V

4.7µH

BATT

4.7µF

2.2µF

BATTP

BATT

OUT

0.075Ω

MAX8506

MAX8507

SKIP

SHDN

REF

CURRENT-

LIMIT

CONTROL

REF

0.4Ω

0.3Ω

PWM

0.22µF

1MHz

OSC

REFIN

DAC

GND

PGND

COMP

R *

C *

(kΩ)

C (pF) C (pF)

C f

MAX8506

MAX8507

1500

1000

100

C *

Typical Application Circuits continued at end of data sheet.

________________________________________________________________ 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 5 6 7...12

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与MAX8506相关器件

型号	品牌	获取价格	描述	数据表
MAX8506\|MAX8507\|MAX8508	MAXIM	获取价格	PWM Step-Down DC-DC Converters with 75m Bypass FET for WCDMA and cdmaOne Handsets
MAX8506ETE	MAXIM	获取价格	PWM Step-Down DC-DC Converters with 75m? Bypass FET for WCDMA and cdmaOne Handsets
MAX8506ETE+	MAXIM	获取价格	Switching Regulator, Current-mode, 3.2A, 1200kHz Switching Freq-Max, BICMOS, PDSO16, 4 X 4
MAX8506ETE+T	MAXIM	获取价格	Switching Regulator, Current-mode, 3.2A, 1200kHz Switching Freq-Max, BICMOS, PDSO16, 4 X 4
MAX8506EVKIT	MAXIM	获取价格	1MHz Fixed-Frequency PWM Switching
MAX8507	MAXIM	获取价格	1MHz Fixed-Frequency PWM Switching
MAX8507ETE	MAXIM	获取价格	PWM Step-Down DC-DC Converters with 75m? Bypass FET for WCDMA and cdmaOne Handsets
MAX8508	MAXIM	获取价格	1MHz Fixed-Frequency PWM Switching
MAX8508	ADI	获取价格	带有75mΩ旁路FET的PWM降压型DC-DC转换器，适用于WCDMA和cdmaOne手机
MAX8508ETE	MAXIM	获取价格	PWM Step-Down DC-DC Converters with 75m? Bypass FET for WCDMA and cdmaOne Handsets

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