MAX668 & MAX669 PWM Step-Up Controllers

Analog Devices MAX668 and MAX669 PWM Step-Up Controllers are constant-frequency, pulse-width modulating (PWM), and current-mode DC-DC controllers. These Analog Devices devices are designed for various 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 various battery and AC-powered inputs. An advanced BiCMOS design features a low operating current (220µA), adjustable operating frequency (100kHz to 500kHz), soft-start, and a SYNC input allowing the MAX668 and MAX669s oscillator to be locked to an external clock. 

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Description Datasheet Availability Pricing (IDR) Filter the results in the table by unit price based on your quantity.
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Duty Cycle - Max
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Analog Devices / Maxim Integrated Switching Controllers 1.8V to 28V Input, PWM Step-Up Controllers in MAX
Datasheet
135In Stock
Min.: 1
Mult.: 1

Boost 1 Output 500 kHz 94 % 3 V to 28 V 1 A - 40 C + 85 C SMD/SMT UMAX-10 Tube
Analog Devices / Maxim Integrated Switching Controllers 1.8V to 28V Input, PWM Step-Up Controllers in MAX
Datasheet
272In Stock
60Expected 16/03/2026
Min.: 1
Mult.: 1

Boost 1 Output 500 kHz 94 % 3 V to 28 V 1 A - 40 C + 85 C SMD/SMT UMAX-10 Tube
Analog Devices / Maxim Integrated Switching Controllers 1.8V to 28V Input, PWM Step-Up Controllers in MAX
Datasheet
2.220In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2.500

Boost 1 Output 500 kHz 94 % 3 V to 28 V 1 A - 40 C + 85 C SMD/SMT UMAX-10 Reel, Cut Tape, MouseReel
Analog Devices / Maxim Integrated Switching Controllers 1.8V to 28V Input, PWM Step-Up Controllers in MAX
Datasheet
1.218In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2.500

Boost 1 Output 500 kHz 94 % 3 V to 28 V 1 A - 40 C + 85 C SMD/SMT UMAX-10 Reel, Cut Tape, MouseReel
Analog Devices / Maxim Integrated Switching Controllers 1.8V to 28V Input, PWM Step-Up Controllers in MAX
Datasheet
37In Stock
Min.: 1
Mult.: 1

Boost 1 Output 500 kHz 94 % 3 V to 28 V 1 A - 40 C + 85 C SMD/SMT UMAX-10 AEC-Q100 Tube
Analog Devices / Maxim Integrated Switching Controllers 1.8V to 28V Input, PWM Step-Up Controllers in MAX
Datasheet
2.500Factory Stock Available
More Info Available
Min.: 2.500
Mult.: 2.500
Reel: 2.500

1 Output 94 % 3 V to 28 V - 40 C + 85 C SMD/SMT UMAX-10 AEC-Q100 Reel