MAX1708

更新时间： 2024-11-04 22:55:27

品牌	Logo	应用领域
美信 - MAXIM		转换器
页数	文件大小	规格书
13页	333K
描述
High-Frequency, High-Power, Low-Noise, Step-Up DC-DC Converter

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MAX1708 数据手册

19-2068; Rev 0; 7/01

High-Frequency, High-Power, Low-Noise,

Step-Up DC-DC Converter

General Description

Features

The MAX1708 sets a new standard of space savings for

high-power, step-up DC-DC conversion. It delivers up

to 10W at a fixed (3.3V or 5V) or adjustable (2.5V to

5.5V) output, using an on-chip power MOSFET from a

+0.7V to +5V supply.

o On-Chip 5A Power MOSFET

o 5V, 2A Output from a 3.3V Input

o Fixed 3.3V or 5V Output Voltage or

Adjustable (2.5V to 5.5V)

Fixed-frequency PWM operation ensures that the

switching noise spectrum is constrained to the 600kHz

fundamental and its harmonics, allowing easy postfilter-

ing for noise reduction. External clock synchronization

capability allows for even tighter noise spectrum con-

trol. Quiescent power consumption is less than 1mW to

extend operating time in battery-powered systems.

o Input Voltage Range Down to 0.7V

o Low Power Consumption

1mW Quiescent Power

1µA Current in Shutdown Mode

o Low-Noise, Constant Frequency Operation

(600kHz)

Two control inputs (ONA, ONB) allow simple push-on,

push-off control through a single momentary push-but-

ton switch, as well as conventional on/off logic control.

The MAX1708 also features programmable soft-start

and current limit for design flexibility and optimum per-

formance with batteries. The maximum RMS switch cur-

rent rating is 5A. For a device with a higher (10A)

switch current rating, refer to the MAX1709 data sheet.

o Synchronizable Switching Frequency

(350kHz to 1000kHz)

o Small QSOP Package

________________________Applications

Ordering Information

Routers, Servers, Workstations, Card Racks

Local 2.5V to 3.3V or 5V Conversion

Local 3.3V to 5V Conversion

PART

TEMP. RANGE

PIN-PACKAGE

MAX1708EEE

-40°C to +85°C

16 QSOP

3.6V or 5V RF PAs in Communications Handsets

Typical Operating Circuit

Pin Configuration

INPUT

1V TO 5V

TOP VIEW

ONB

ONA

16 CLK

2.2µH

15 3.3/5

14 PGND

OUTPUT

3.3V, 5V,

OR ADJ

OFF ON

ONA

CLK

MAX1708

13 PGND

12 PGND

11 FB

UP TO 2A

SYNC

INTERNAL

MAX1708

GND

OUT

GND

SS/LIM

REF

SS/LIM

REF

10 OUT

GND

QSOP

________________________________________________________________ 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...13

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与MAX1708相关器件

型号	品牌	获取价格	描述	数据表
MAX1708_10	MAXIM	获取价格	High-Frequency, High-Power, Low-Noise, Step-Up DC-DC Converter
MAX17080	MAXIM	获取价格	AMD 2-/3-Output Mobile Serial VID Controller
MAX17080GTL+	MAXIM	获取价格	AMD 2-/3-Output Mobile Serial VID Controller
MAX17082	MAXIM	获取价格	Dual-Phase, Quick-PWM Controllers for IMVP-6+/IMVP-6.5 CPU Core Power Supplies
MAX17082	ADI	获取价格	双相、Quick-PWM控制器，用于Intel IMVP6+/6.5 CPU
MAX17082GTL+	MAXIM	获取价格	Dual-Phase, Quick-PWM Controllers for IMVP-6+/IMVP-6.5 CPU Core Power Supplies
MAX17082GTL+T	MAXIM	获取价格	Switching Regulator/Controller, Current-mode, 800kHz Switching Freq-Max, BICMOS, PQCC40,
MAX17083	MAXIM	获取价格	Low-Voltage, Internal Switch, Step-Down Regulator
MAX17083	ADI	获取价格	低电压、内置开关、降压型调节器
MAX17083ETG+	MAXIM	获取价格	Low-Voltage, Internal Switch, Step-Down Regulator

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