MAX629CSLASHD datasheet(1/12 Pages) MAXIM

tên linh kiện	MAX629C/D

Giải thích chi tiết về linh kiện	28V, Low-Power, High-Voltage, Boost or Inverting DC-DC Converter

PDF	12 Pages

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nhà sản xuất	MAXIM [Maxim Integrated Products]

Trang chủ	https://www.maximintegrated.com/en.html

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General Description

The MAX629 low-power DC-DC converter features an

internal N-channel MOSFET switch and programmable

current limiting. It is designed to supply positive or neg-

ative bias voltages up to ±28V from input voltages in the

0.8V to VOUT range and can be configured for boost,

flyback, and SEPIC topologies.

The MAX629’s current-limited pulse-frequency-modula-

tion (PFM) control scheme provides high efficiency over a

wide range of load conditions. An internal, 0.5A N-channel

MOSFET switch reduces the total part count, and a

high switching frequency (up to 300kHz) allows for tiny

surface-mount magnetics.

The MAX629’s combination of low supply current, logic-

controlled shutdown, small package, and tiny external

components makes it an extremely compact and efficient

high-voltage biasing solution that’s ideal for battery-pow-

ered applications. The MAX629 is available in an 8-pin

SO package.

Applications

● Positive or Negative LCD Bias Generators

● High-Efficiency DC-DC Boost Converters

● Varactor Tuning Diode Bias

● Palmtop Computers

● 2-Cell and 3-Cell Battery-Powered Applications

19-1219; Rev 2; 8/20

Pin Configuration appears at end of data sheet.

Features

● Internal, 500mA, 28V N-Channel Switch

(No External FET Required)

● Generates Positive or Negative Output Voltages

● 80μA Supply Current

● 1μA Max Shutdown Current

● Up to 300kHz Switching Frequency

● Adjustable Current Limit Allows Use of Small,

Inexpensive Inductors

● 8-Pin SO Package

*Dice are tested at TA = +25°C, DC parameters only.

Note: To order tape-and-reel shipping, add “-T” to the end of

the part number.

PART

TEMP. RANGE

PIN-PACKAGE

MAX629C/D

0°C to +70°C

Dice*

MAX629ESA

-40°C to +85°C

8 SO

MAX629

28V, Low-Power, High-Voltage,

Boost or Inverting DC-DC Converter

Ordering Information

Typical Operating Circuit

MAX629

SHDN

VIN

+2.7V

TO +5.5V

LX

VCC

GND

FB

ISET

POL

REF

POSITIVE OUTPUT VOLTAGE

MAX629

SHDN

-VOUT

-28V

VOUT

28V

VIN

+2.7V

TO +5.5V

LX

VCC

GND

FB

REF

POL

NEGATIVE OUTPUT VOLTAGE

ISET

Click

here to ask about the production status of specific part numbers.

EVALUATION KIT AVAILABLE

Số phần tương tự - MAX629C/D

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Maxim Integrated Produc...	MAX629C/D	135Kb / 12P	28V, Low-Power, High-Voltage, Boost or Inverting DC-DC Converter Rev 1; 6/97

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Maxim Integrated Produc...	MAX629	135Kb / 12P	28V, Low-Power, High-Voltage, Boost or Inverting DC-DC Converter Rev 1; 6/97
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