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MAXIM INTEGRATED PRODUCTS  MAX668EUB+  PWM STEP UP CONTROLLER, SMD, SOIC10

MAXIM INTEGRATED PRODUCTS MAX668EUB+

Image is for illustrative purposes only. Please refer to product description.

Product Overview

The MAX668EUB+ is a constant-frequency, pulse-width modulating (PWM), current-mode DC-DC Controller is 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 1.8 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 (100 to 500kHz), soft-start and a SYNC input allowing the MAX668 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 Maxims 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.
  • 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

Product Information

Supply Voltage Min:
1.8V
Supply Voltage Max:
28V
Duty Cycle (%):
94%
Controller IC Case Style:
µMAX
Switching Frequency:
575kHz
Topology:
Boost (Step Up)
Packaging:
Cut Tape
No. of Pins:
10 Pins
MSL:
MSL 1 - Unlimited
Operating Temperature Min:
-40
Operating Temperature Max:
85 °C
Automotive Qualification Standard:
-
No. of Outputs:
1 Output
SVHC:
No SVHC (15-Jun-2015)

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Applications

  • Audio;
  • Communications & Networking;
  • Industrial

Legislation and Environmental

Moisture Sensitivity Level:
MSL 1 - Unlimited
Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.0001