MAX5026
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MAX5026

500kHz, 36V Output, SOT23, PWM Step-Up DC-DC Converters

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 2
1ku List Price Starting From $0.60
Features
  • Input Voltage Range:
    • 3V to 11V (MAX5026/MAX5028)
    • 4.5V to 11V (MAX5025/MAX5027)
  • Wide Output Voltage Range: VCC to 36V
  • Output Power: 120mW (max)
  • User-Adjustable Output Voltage with MAX5025/MAX5026 Using External Feedback Resistors
  • Fixed 30V Output Voltage: MAX5027/MAX5028
  • Internal 1.3Ω (typ), 40V Switch
  • Constant PWM Frequency Provides Easy Filtering in Low-Noise Applications
  • 500kHz (typ) Switching Frequency
  • 1µA (max) Shutdown Current
  • Small, 6-Pin SOT23 Package
Additional Details
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The MAX5025–MAX5028 constant-frequency, pulse-width modulating (PWM), low-noise boost converters are intended for low-voltage systems that often need a locally generated high voltage. These devices are capable of generating low-noise, high output voltages required for varactor diode biasing in TV tuners, set-top boxes, and PCI cable modems. The MAX5025–MAX5028 operate from as low as 3V and switch at 500kHz.

The constant-frequency, current-mode PWM architecture provides for low output noise that is easy to filter. A 40V lateral DMOS device is used as the internal power switch, making the devices ideal for boost converters up to 36V. The MAX5025/MAX5026 adjustable versions require the use of external feedback resistors to set the output voltage. The MAX5027/MAX5028 offer a fixed 30V output. These devices are available in a small, 6-pin SOT23 package.

Applications

  • Avalanche Photodiode Biasing
  • LCD Power Supply
  • Low-Noise Varactor Diode Biasing
  • PCI Cable Modem
  • Set-Top Box Tuner Power Supply
  • TV Tuner Power Supply
  • Voice-Over-Cable
Part Models 2
1ku List Price Starting From $0.60

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Nov 1, 2021

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