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MAXIM INTEGRATED / ANALOG DEVICES MAX1921EUT33T Step-down DC-DC Converter

The MAX1921EUT33T is a high-efficiency, low-voltage step-down DC-DC converter capable of delivering over 400mA with factory preset 3.3V output. It features proprietary current-limited control, internal synchronous rectification, and a 1.2MHz switching frequency for small external components and high efficiency. The device includes internal soft-start, low quiescent current, and a space-saving 6-pin SOT23 package, making it ideal for portable, battery-powered applications, wireless handsets, and power supplies requiring stable 3.3V regulation.

Authorized Distributors
Source:Newark
Part No:MAX1921EUT33+T
Stock:241
Inv Date:06-05-2026
Price: Unit price: $5.17
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Source:DigiKey
Part No:MAX1921EUT33+T
Stock:1020
Inv Date:06-05-2026
Price: Unit price: $5.16
Buy/RFQ:
Part No:MAX1921EUT33+T
Stock:2363
Inv Date:06-06-2026
Price: Unit price: $5.02
Buy/RFQ:
Part No:MAX1921EUT33-T
Stock:0
Inv Date:06-06-2026
Price: N/A
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MAXIM INTEGRATED / ANALOG DEVICES MAX1921EUT33T Step-down DC-DC Converter Specifications:

  • Maximum Output Current: 400mA
  • Output Voltage: 3.3V (factory preset)
  • Input Voltage Range: 2V to 5.5V
  • Switching Frequency: Up to 1.2MHz
  • Quiescent Supply Current: 70A (typical)
  • Shutdown Supply Current: 0.4pA
  • Output Voltage Accuracy: ±1.5%
  • Internal Synchronous Rectifier for > 90% efficiency
  • Operating Temperature Range: -40°C to +85°C
  • Package: 6-pin SOT23
  • Soft-Start: Internal circuitry limits startup current
  • Protection: UVLO, cycle-by-cycle current limit
  • Features include low-noise, high-frequency operation to minimize external components.

Buy the Maxim MAX1921EUT33T – Reliable 3.3V DC-DC Converter for Industrial Applications

Enhance your projects with the Maxim MAX1921EUT33T step-down DC-DC converter, delivering 400mA in a compact SOT23 package. With factory preset 3.3V output, high 1.2MHz frequency, and internal synchronous rectification, it provides excellent efficiency for space-constrained applications. Its internal soft-start reduces inrush current, making it ideal for portable, battery-powered devices like wireless handsets, PDAs, and power supplies. Designed to meet demanding performance and reliability standards, order online today for quick delivery and optimal power management solutions.

Order your Maxim MAX1921EUT33T high-efficiency step-down converter today and ensure your portable devices and power systems operate reliably with compact, dependable power regulation.

Frequently Asked Questions

Where can I buy MAXIM INTEGRATED / ANALOG DEVICES MAX1921EUT33T?

You can click on the BUY or RFQ button to purchase MAX1921EUT33T from an authorized MAXIM INTEGRATED / ANALOG DEVICES distributor.

How do I troubleshoot issues or seek technical support for part MAX1921EUT33T?

You can download the MAX1921EUT33T datasheet or visit the MAXIM INTEGRATED / ANALOG DEVICES website for support.

Who is the manufacturer of MAX1921EUT33T?

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