Datasheet > MAX1709_07

MAX1709_07

更新时间： 2022-11-17 18:29:52

品牌	Logo	应用领域
美信 - MAXIM		转换器
页数	文件大小	规格书
14页	310K
描述
4A, Low-Noise, High-Frequency, Step-Up DC-DC Converter

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MAX1709_07 数据手册

19-1724; Rev 2; 4/07

4A, Low-Noise, High-Frequency,

Step-Up DC-DC Converter

MAX1709

General Description

Features

The MAX1709 sets a new standard of space savings for

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

to 20W 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.

♦ On-Chip 10A Power MOSFET

♦ 5V, 4A Output from a 3.3V Input

♦ 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.

♦ Input Voltage Range Down to 0.7V

♦ Low Power Consumption

1mW Quiescent Power

1µA Current in Shutdown Mode

♦ Low-Noise, Constant Frequency Operation

(600kHz)

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

push-off control through a single momentary pushbut-

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

The MAX1709 also features programmable soft-start

and current limit for design flexibility and optimum per-

formance with batteries.

♦ Synchronizable Switching Frequency

(350kHz to 1000kHz)

Ordering Informations

The MAX1709 is supplied in both a high-power TSSOP

package, which allows a 10A

switch current and a

RMS

PART

TEMP RANGE

-40°C to +85°C

PIN-PACKAGE

16 Narrow SO

28 TSSOP-EP*

4A output, and a narrow SO package, which supplies a

2.4A output with a switch rated at 6A . Although the

MAX1709ESE

MAX1709EUI+

RMS

narrow SO device has a lower RMS switch rating, it has

the same peak switch current rating as the TSSOP

device, and so can supply 4A loads intermittently. If

loads of 2A or less are required, refer to the MAX1708.

+Indicates lead(Pb)-free/RoHS-compliant package.

*Exposed pad.

________________________Applications

Pin Configurations

Routers, Servers, Workstations, Card Racks

Local 2.5V to 3.3V or 5V Conversion

Local 3.3V to 5V Conversion

TOP VIEW

ONA

28 ONB

27 CLK

26 3.3/5

25 NC

3.6V or 5V RF PAs in Communications Handsets

MAX1709

Typical Operating Circuit

24 NC

23 PGND

22 PGND

21 PGND

20 PGND

19 PGND

18 PGND

17 NC

INPUT

1V TO 5V

1μH

OUTPUT

3.3V, 5V,

OR ADJ

NC 10

GND 11

OFF ON

ONA

CLK

UP TO 4A

SYNC

INTERNAL

MAX1709

SS/ILM 12

REF 13

GND

OUT

16 FB

SS/LIM

REF

GND 14

15 OUT

TSSOP-EP*

Pin Configurations continued at end of data sheet.

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim's website at www.maxim-ic.com.

12 3 4 5 6 7...14

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与MAX1709_07相关器件

型号	品牌	获取价格	描述	数据表
MAX17094	MAXIM	获取价格	Digitally Programmable Op-Amp Output Voltage
MAX17094EVKIT	MAXIM	获取价格	Digitally Programmable Op-Amp Output Voltage
MAX17094EVKIT+	MAXIM	获取价格	Digitally Programmable Op-Amp Output Voltage
MAX1709ESE	MAXIM	获取价格	4A, Low-Noise, High-Frequency, Step-Up DC-DC Converter
MAX1709ESE+	MAXIM	获取价格	Switching Regulator, Current-mode, 700kHz Switching Freq-Max, PDSO16, 0.150 INCH, MS-012AC
MAX1709ESE+T	MAXIM	获取价格	Switching Regulator, Current-mode, 1000kHz Switching Freq-Max, PDSO16, 0.150 INCH, MS-012C
MAX1709EUI	MAXIM	获取价格	Switching Regulator/Controller, Current-mode, 700kHz Switching Freq-Max, PDSO28
MAX1709EUI+	MAXIM	获取价格	4A, Low-Noise, High-Frequency, Step-Up DC-DC Converter
MAX1709EUI+T	MAXIM	获取价格	Switching Regulator, Current-mode, 700kHz Switching Freq-Max, PDSO28, 4.40 MM, ROHS COMPLI
MAX1709EUI-T	MAXIM	获取价格	Switching Regulator, Current-mode, 700kHz Switching Freq-Max, PDSO28, 4.40 MM, MO-153AET,

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