MAX669EUB

MAX669EUB

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MAX669EUB
PWM STEP-UP CONTROLLER
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$0.73

Price update:a months ago
Available in stock: 1405
45
Serves customers in 45 countries
1000+
Worldwide Manufacturers
$140M
$140M Growth in 5 Years
50.0M+
50M Parts Shipped in 5 Years
Analog Devices Inc./Maxim Integrated

Analog Devices Inc./Maxim Integrated

Maxim Integrated has amalgamated with Analog Devices, imparting an augmented repertoire of superlative mixed-signal and power governance innovations, fostering clientele triumph across diverse sectors. This amalgamation begets a spectrum of resolutions for surmounting the utmost intricate quandaries, spanning from direct current to the expanse of 100 gigahertz, encompassing miniscule nanowatt realms to robust kilowatt domains, spanning the sensor continuum to the ethereal expanse of cloud. Delve deeper into Analog Devices' enriched assemblage on their product dossier.

View All Product from Analog Devices Inc./Maxim Integrated
MAX669EUB Products
The MAX668/MAX669EUB constant-frequency, pulse-width modulating (PWM), current-mode DC-DC controllers are designed for a wide range of DC-DC conversion applications including step-up, SEPIC, flyback, and isolated-output configurations. Power levels of 20W or more can be controlled with conversion efficiencies of over 90%. The 1.8V to 28V input voltage range supports a wide range of battery and AC-powered inputs. An advanced BiCMOS design features low operating current (220μA), adjustable operating frequency (100kHz to 500kHz), soft-start, and a SYNC input allowing the MAX668/MAX669EUB oscillator to be locked to an external clock. DC-DC conversion efficiency is optimized with a low 100mV current-sense voltage as well as with Maxim's proprietary Idle Mode control scheme. The controller operates in PWM mode at medium and heavy loads for lowest noise and optimum efficiency, then pulses only as needed (with reduced inductor current) to reduce operating current and maximize efficiency under light loads. A logic-level shutdown input is also included, reducing supply current to 3.5μA. The MAX669, optimized for low input voltages with a guaranteed start-up voltage of 1.8V, requires boot-strapped operation (IC powered from boosted output). It supports output voltages up to 28V. The MAX668 operates with inputs as low as 3V and can be connected in either a bootstrapped or non-bootstrapped (IC powered from input supply or other source) configuration. When not bootstrapped, it has no restriction on output voltage. Both ICs are available in an extremely compact 10-pin μMAX package.

Feature

  • 1.8V Minimum Start-Up Voltage (MAX669)
  • Wide Input Voltage Range (1.8V to 28V)
  • Tiny 10-Pin μMAX Package
  • Current-Mode PWM and Idle Mode Operation
  • Efficiency Over 90%
  • Adjustable 100kHz to 500kHz Oscillator or SYNC Input
  • 220μA Quiescent Current
  • Logic-Level Shutdown
  • Soft-Start

Applications

  • Cellular Telephones
  • LANs and Network Systems
  • POS Systems
  • Telecom Hardware

Product Attributes

TYPE DESCRIPTION Select all
Product Status Active
Clock Sync Yes
Synchronous Rectifier No
Frequency - Switching 100kHz ~ 500kHz
Voltage - Supply (Vcc/Vdd) 1.8V ~ 28V
Output Phases 1
Supplier Device Package 10-uMAX
Number of Outputs 1
Package / Case 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Topology Boost, Flyback, SEPIC
Mounting Type Surface Mount
Output Configuration Positive, Isolation Capable
Operating Temperature -40°C ~ 85°C
Function Step-Up, Step-Up/Step-Down
Control Features Enable, Frequency Control, Soft Start
Output Type Transistor Driver
Package Bulk
Duty Cycle (Max) 90%

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$0.73

Price update:a months ago
Available in stock: 1405
Analog Devices Inc./Maxim Integrated

Analog Devices Inc./Maxim Integrated

Maxim Integrated has amalgamated with Analog Devices, imparting an augmented repertoire of superlative mixed-signal and power governance innovations, fostering clientele triumph across diverse sectors. This amalgamation begets a spectrum of resolutions for surmounting the utmost intricate quandaries, spanning from direct current to the expanse of 100 gigahertz, encompassing miniscule nanowatt realms to robust kilowatt domains, spanning the sensor continuum to the ethereal expanse of cloud. Delve deeper into Analog Devices' enriched assemblage on their product dossier.

View All Product from Analog Devices Inc./Maxim Integrated

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