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 (USD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Topology
Number of Outputs
Switching Frequency
Duty Cycle - Max
Output Voltage
Output Current
Minimum Operating Temperature
Maximum Operating Temperature
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Package/Case
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Analog Devices / Maxim Integrated Switching Controllers 1.8V to 28V Input, PWM Step-Up Controllers in MAX
Datasheet
1,049In Stock
$9.60
$7.28
$6.62
$6.00
View
Min.: 1
Mult.: 1
Max.: 954
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
894In Stock
Cut Tape
$10.56
$8.22
$7.63
$6.99
View
MouseReel Available
Min.: 1
Mult.: 1
Max.: 715
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
135In Stock
$10.56
$8.22
$7.62
$6.98
Min.: 1
Mult.: 1
Max.: 108
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
1,418In Stock
Cut Tape
$9.86
$7.66
$7.11
$6.50
View
MouseReel Available
Min.: 1
Mult.: 1
Max.: 1,134
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
$9.85
$7.67
$6.51
$6.17
View
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