MAX1720EUT

Ideal for Low Power Applications
3,303 有效庫存

MAX1720EUT

有效庫存3,303

Ideal for Low Power Applications

  • 製造商零件號 # : MAX1720EUT

  • 包裝/封裝: SOT-6

  • 製造商: Analog Devices

  • 產品分類 : Voltage Regulators - DC DC Switching Regulators

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MAX1720EUT 數據表
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詳細說明

General DescriptionThe ultra-small MAX1719/MAX1720/MAX1721 monolithic, CMOS charge-pump inverters accept input voltages ranging from +1.5V to +5.5V. The MAX1720 operates at 12kHz, and the MAX1719/MAX1721 operate at 125kHz. High efficiency, small external components, and logic controlled shutdown make these devices ideal for both battery-powered and board-level voltage conversion applications.Oscillator control circuitry and four power MOSFET switches are included on-chip. A typical MAX1719/MAX1720/MAX1721 application is generating a -5V supply from a +5V logic supply to power analog circuitry. All three parts come in a 6-pin SOT23 package and can deliver a continuous 25mA output current.Features♦ 1nA Logic-Controlled Shutdown♦ 6-Pin SOT23 Package♦ 99.9% Voltage Conversion Efficiency♦ 50µA Quiescent Current (MAX1720)♦ +1.5V to +5.5V Input Voltage Range♦ 25mA Output Current♦ Requires Only Two 1µF Capacitors (MAX1719/MAX1721)Applications Local Negative Supply from a Positive Supply Small LCD Panels GaAs PA Bias Supply Handy-Terminals, PDAs Battery-Operated Equipment

主要特徵

  • ♦ 1nA Logic-Controlled Shutdown
  • ♦ 6-Pin SOT23 Package
  • ♦ 99.9% Voltage Conversion Efficiency
  • ♦ 50µA Quiescent Current (MAX1720)
  • ♦ +1.5V to +5.5V Input Voltage Range
  • ♦ 25mA Output Current
  • ♦ Requires Only Two 1µF Capacitors (MAX1719/MAX1721)

規格

以下是所選零件的基本參數，涉及零件的特性及其所屬類別。

Product Category ! Switching Voltage Regulators Output Voltage - 1.25 V to - 5.5 V
Output Current ! 25 mA Topology Inverting
Package / Case SOT-23-6 Mounting Style SMD/SMT
Minimum Operating Temperature - 40 C Maximum Operating Temperature ! + 85 C
Series MAX1720 Brand Analog Devices / Maxim Integrated
Function Inverting Height 1.1 mm
Length 2.9 mm Product Type ! Switching Voltage Regulators
Subcategory PMIC - Power Management ICs Type Voltage Converter
Width 1.63 mm Part # Aliases MAX1720
Unit Weight 0.001270 oz

數據表 PDF

數據表記錄了器件的特性、絕對最大額定值、應用等，這對於作為器件特定應用的整體指南大有裨益。

初步規格 MAX1720EUT PDF 下載

常見問題解答

What is MAX1720EUT?

The MAX1720EUT is a step-up DC-DC converter designed by Maxim Integrated. It is suitable for applications requiring efficient power conversion from a low input voltage to a higher output voltage, such as battery-powered devices, energy harvesting systems, and portable electronics.

How Does MAX1720EUT Work?

The MAX1720EUT works by taking a low input voltage and efficiently boosting it to a higher output voltage using a step-up conversion process. It features a high-efficiency, fixed-frequency pulse-width modulation (PWM) controller to generate the desired output voltage, making it suitable for power-sensitive applications. The converter also includes internal compensation and soft-start features for ease of use.

How Many Pins does MAX1720EUT have and What are the Functions of the Pinout Configuration?

The MAX1720EUT is housed in a 6-pin SOT-23 package. The pinout configuration includes:

  • VIN: Input voltage pin.
  • SW: Switching node pin for the internal MOSFET.
  • GND: Ground pin.
  • FB: Feedback pin for controlling the output voltage.
  • SHDN: Shutdown control pin.
  • PGND: Power ground pin for the internal MOSFET.

What are the Pros and Cons of MAX1720EUT?

Pros:

  • High Efficiency: Provides high efficiency conversion, maximizing battery life in portable devices.
  • Compact Size: Housed in a small SOT-23 package, suitable for space-constrained designs.
  • Low Quiescent Current: Offers low quiescent current, ideal for battery-powered applications.
  • Soft-Start Feature: Incorporates a soft-start function to reduce inrush current during startup.
  • Low Shutdown Current: Consumes minimal current in shutdown mode, conserving power.

Cons:

  • Output Current Limit: Limited in terms of maximum output current compared to higher-power converters.
  • External Components: May require external components such as inductors and capacitors for operation.
  • Operating Frequency: Fixed operating frequency may not be adjustable for certain applications.

Are There Any Equivalents/Alternatives to MAX1720EUT for Recommendation?

  • The TPS61200 from Texas Instruments is a similar step-up DC-DC converter with comparable features.
  • Alternatives to the MAX1720EUT include the LT1301 from Analog Devices and the MCP1623 from Microchip Technology.

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