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MAXIM INTEGRATED / ANALOG DEVICES MAX642ACSA Step-Up Regulator

The MAX642ACSA+ is a fixed 10W CMOS step-up switching regulator housed in an 8-pin NSOIC package. It is preset to output +12V but can be adjusted to other voltages using two resistors. Designed for minimal component count, this device is suitable for low-power DC-DC conversions in the 5mW to 10mW range. Typical applications include uninterruptible power supplies, power conditioning for battery systems, portable instruments, and communication equipment. It operates within an input voltage range of 2V to 16.5V, with an oscillator frequency of 50kHz at +12V output and a 50% duty cycle. The device has a supply current of 0.5mA at +12V, an internal 1.31V reference voltage at 25°C, and typically achieves 80% efficiency with an external MOSFET. It features line regulation of 0.08% per volt, load regulation of 0.2%, and an on-chip driver for external high-power MOSFETs. The operating temperature range is from 0°C to 70°C.

Authorized Distributors
Source:Newark
Part No:MAX642ACSA+
Stock:395
Inv Date:06-05-2026
Price: Unit price: $9.79
Buy/RFQ:
Source:DigiKey
Part No:MAX642ACSA+
Stock:200
Inv Date:06-05-2026
Price: Unit price: $9.79
Buy/RFQ:
Part No:MAX642ACSA+
Stock:100
Inv Date:06-06-2026
Price: Unit price: $9.99
Buy/RFQ:
Part No:MAX642ACSA
Stock:0
Inv Date:06-06-2026
Price: N/A
Buy/RFQ:

MAXIM INTEGRATED / ANALOG DEVICES MAX642ACSA Step-Up Regulator Specifications:

  • Output Power: 10W
  • Preset Output Voltage: +12V
  • Adjustable Voltage: Yes (using two resistors)
  • Input Voltage Range: 2V to 16.5V
  • Oscillator Frequency: 50kHz at +12V output
  • Duty Cycle: 50%
  • Supply Current: 0.5mA at +12V
  • Internal Reference Voltage: 1.31V at 25°C
  • Efficiency: Typically 80%
  • Line Regulation: 0.08%/V
  • Load Regulation: 0.2%
  • Package Type: 8-pin NSOIC
  • Operating Temperature Range: 0°C to 70°C

Buy the Maxim MAX642ACSA+ – Reliable 12V CMOS Step-Up for Industrial Applications

Buy the Maxim MAX642ACSA+ online today and ensure your projects benefit from a compact, efficient, and adjustable 12V CMOS step-up regulator. Designed for low-power DC-DC conversions, this device simplifies your power design with minimal external components and provides high efficiency up to 80%. It features an internal 1.31V reference, broad input voltage range from 2V to 16.5V, and integrated driver circuitry for external high-power MOSFETs. Perfect for uninterruptible power supplies, portable instruments, and communication devices, available now for quick delivery.

Order your Maxim MAX642ACSA+ high-efficiency step-up regulator today and enhance your portable and battery-powered projects with dependable voltage conversion.

Frequently Asked Questions

Where can I buy MAXIM INTEGRATED / ANALOG DEVICES MAX642ACSA?

You can click on the BUY or RFQ button to purchase MAX642ACSA from an authorized MAXIM INTEGRATED / ANALOG DEVICES distributor.

How do I troubleshoot issues or seek technical support for part MAX642ACSA?

You can download the MAX642ACSA datasheet or visit the MAXIM INTEGRATED / ANALOG DEVICES website for support.

Who is the manufacturer of MAX642ACSA?

MAXIM INTEGRATED / ANALOG DEVICES

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