Datasheet > MAX618_09

MAX618_09

更新时间： 2024-09-23 11:16:19

品牌	Logo	应用领域
美信 - MAXIM		转换器
页数	文件大小	规格书
14页	187K
描述
28V, PWM, Step-Up DC-DC Converter

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MAX618_09 数据手册

19-1462; Rev 1; 12/09

28V, PWM, Step-Up DC-DC Converter

MAX618

General Description

Features

The MAX618 CMOS, PWM, step-up DC-DC converter

generates output voltages up to 28V and accepts

inputs from +3V to +28V. An internal 2A, 0.3Ω switch

eliminates the need for external power MOSFETs while

supplying output currents up to 500mA or more. A

PWM control scheme combined with Idle Mode™ oper-

ation at light loads minimizes noise and ripple while

maximizing efficiency over a wide load range. No-load

operating current is 500µA, which allows efficiency up

to 93%.

o Adjustable Output Voltage Up to +28V

o Up to 93% Efficiency

o Wide Input Voltage Range (+3V to +28V)

o Up to 500mA Output Current at +12V

o 500µA Quiescent Supply Current

o 3µA Shutdown Current

o 250kHz Switching Frequency

o Small 1W, 16-Pin QSOP Package

A fast 250kHz switching frequency allows the use of

small surface-mount inductors and capacitors. A shut-

down mode extends battery life when the device is not

in use. Adaptive slope compensation allows the

MAX618 to accommodate a wide range of input and

output voltages with a simple, single compensation

capacitor.

The MAX618 is available in a thermally enhanced 16-

pin QSOP package that is the same size as an industry-

standard 8-pin SO but dissipates up to 1W. An

evaluation kit (MAX618EVKIT) is available to help

speed designs.

Ordering Information

PART

TEMP. RANGE

-40°C to +85°C

PIN-PACKAGE

16 QSOP

MAX618EEE+

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

Applications

Automotive-Powered DC-DC Converters

Industrial +24V and +28V Systems

LCD Displays

Typical Operating Circuit

Palmtop Computers

Pin Configuration

OUT

3V TO 28V

UP TO 28V

TOP VIEW

GND

16 GND

15 PGND

14 PGND

13 PGND

12 GND

11 VL

MAX618

SHDN

PGND

MAX618

SHDN

COMP

10 IN

COMP

GND

QSOP

Idle Mode is a trademark of Maxim Integrated Products.

________________________________________________________________ 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.

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型号	品牌	获取价格	描述	数据表
MAX618EEE	MAXIM	获取价格	28V, PWM, Step-Up DC-DC Converter
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