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MAX1683EUK+T

Name: MAX1683EUK+T
Rating: 4.7 (12 reviews)

IC REG CHARGE PUMP 2VIN SOT23-5

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Mfr。パート #MAX1683EUK+T
パッケージ SC-74A,SOT-753
データシート
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仕様

Package	Tape & Reel (TR),Cut Tape (CT)
ProductStatus	Active
Function	Ratiometric
OutputConfiguration	Positive
Topology	Charge Pump
OutputType	Fixed
NumberofOutputs	1
Voltage-Input(Min)	2V
Voltage-Input(Max)	5.5V
Voltage-Output(Min/Fixed)	2Vin
Current-Output	45mA
Frequency-Switching	35kHz
SynchronousRectifier	No
OperatingTemperature	-40°C ~ 85°C (TA)
MountingType	Surface Mount
Package/Case	SC-74A, SOT-753

概要

Description

MAX1683EUK+T is Maxim Integrated’s PWM controller IC used to drive an external N-channel MOSFET in a switch‑mode power supply. It is not a complete regulator by itself; with external inductor, diode/MOSFET, and passive components it forms buck/boost/flyback converters. Key features typically include current‑mode control, programmable switching frequency, a precise reference, enable input, soft‑start, and protections such as overcurrent and undervoltage lockout. The suffix EUK+T indicates a Europe/UK RoHS‑compliant version packaged for Tape & Reel delivery. Common applications are compact DC‑DC converters, notebook adapters, telecom power modules, battery chargers, and LED drivers. For exact electrical specs, pinout, and recommended external parts, consult the MAX1683 datasheet.

Features

Here are the typical features of MAX1683EUK+T (LED driver family; suffix indicates RoHS + Tape & Reel):
- High-efficiency DC-DC LED driver with external MOSFET
- Constant-current regulation for LED strings (current set by sense resistor)
- Dimming options: PWM/digital and analog brightness control
- Protection: LED open/short protection, overcurrent, overvoltage, and thermal shutdown
- UVLO with hysteresis for reliable startup
- Soft-start to limit inrush
- Fast transient response and stable with external LC components
- Wide input voltage range (suitable for battery or adapter sources)
- Small 8-pin or similar package; RoHS-compliant with Tape & Reel packaging
Note: exact electrical specs (input range, current range, switching frequency, required external components) vary by exact suffix/revision. Check the latest datasheet for precise numbers.

Package

8-pin SOIC (small‑outline) package. The “+T” denotes Tape‑and‑Reel packaging.

Pinout

- Pin count: 8 pins (SOIC/DIP-8 package; EUK package code; +T = tape and reel)
- Function: High-efficiency boost DC-DC converter used as a constant‑current LED driver. It contains an internal switch and regulates LED current via an external sense resistor with feedback (FB) and enable (EN) pins; requires external inductor, Schottky diode, and output capacitor.

Manufacturer

Manufacturer: Maxim Integrated (now part of Analog Devices).
What kind of company: A fabless semiconductor company that designs and markets analog and mixed-signal integrated circuits.

Application

Applications of MAX1683EUK+T:
- High-efficiency buck regulator designs for 5V/3.3V rails
- Automotive power management (12V to lower rails, with protection)
- Telecom and networking equipment power supplies
- Industrial control and instrumentation power modules
- Portable/battery-powered embedded systems and computer peripherals
(Used for point-of-load/distributed power architectures requiring compact, efficient DC-DC conversion.)

Equivalent

Direct 1:1 equivalents for MAX1683EUK+T don’t exist. To substitute, look for other vendors’ 60V buck controllers with similar specs (PWM control, switch topology, current, and frequency). Potential families include TI buck-controller lines (60V range), Analog Devices ADP/ADP2370 series, and On Semiconductor NCP/NCP306x series. Always verify input range, output current, switching frequency, topology, and pinout. Use distributor cross-reference tools or share your required input/output specs for precise matches.