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MAX1720EUT
Ideal for Low Power Applications
MAX1720EUT
Ideal for Low Power Applications
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Manufacturer Part # : MAX1720EUT
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Package/Case: SOT-6
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Brand: Analog Devices
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Product Categories : Voltage Regulators - DC DC Switching Regulators
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Service & Packaging
Service & Packaging
About After Sales Service
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Initiate the application within 90 days from the shipment date.
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MAX1720EUT DataSheet
Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!
Details
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
Key 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)
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| 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 |
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
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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