IC Phoenix logo

Home ›  M  › M30 > MAX1721EUT

MAX1721EUT from MAXIM,MAXIM - Dallas Semiconductor

Fast Delivery, Competitive Price @IC-phoenix

If you need more electronic components or better pricing, we welcome any inquiry.

MAX1721EUT

Manufacturer: MAXIM

SOT23 / Switched-Capacitor Voltage Inverters with Shutdown

Partnumber Manufacturer Quantity Availability
MAX1721EUT MAXIM 2500 In Stock

Description and Introduction

SOT23 / Switched-Capacitor Voltage Inverters with Shutdown The MAX1721EUT is a low-power, step-up DC-DC converter manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Input Voltage Range:** 0.7V to 5.5V  
- **Output Voltage:** Adjustable from 2V to 5.5V (fixed 3.3V option available)  
- **Output Current:** Up to 150mA (depending on input/output conditions)  
- **Efficiency:** Up to 94%  
- **Switching Frequency:** 500kHz  
- **Quiescent Current:** 12µA (typical)  
- **Shutdown Current:** <1µA  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOT23-6  

### **Descriptions:**
- The MAX1721EUT is a high-efficiency, low-quiescent-current step-up DC-DC converter designed for battery-powered applications.  
- It features a low startup voltage (0.7V), making it suitable for single-cell or dual-cell alkaline/NiMH battery systems.  
- The device includes an internal 0.5A N-channel MOSFET switch and requires minimal external components.  

### **Features:**
- **Ultra-Low Input Voltage Operation:** Starts up with inputs as low as 0.7V.  
- **Adjustable/Fixed Output Voltage:** Supports adjustable output via external resistors or fixed 3.3V output.  
- **Low Quiescent Current:** 12µA (typical) extends battery life.  
- **Internal Soft-Start:** Reduces inrush current during startup.  
- **Automatic Pulse-Frequency Modulation (PFM):** Improves efficiency at light loads.  
- **Compact Package:** SOT23-6 footprint for space-constrained applications.  

This information is sourced from the official MAX1721EUT datasheet by Maxim Integrated.

Application Scenarios & Design Considerations

SOT23 / Switched-Capacitor Voltage Inverters with Shutdown

Alternative Part Number

  • LM2662M --: Switched-capacitor voltage converter in the same function class as the MAX1721, widely available and pin-compatible in many designs.
  • ICL7660 --: Classic charge-pump voltage inverter/regulator that can substitute for the MAX1721 in similar low-current applications.
  • LTC1144 --: Switched-capacitor converter with comparable voltage inversion capability and a different series naming, suitable as a functional replacement.
  • LM2664M6 --: Pin-compatible switched-capacitor voltage inverter in SOT-23-6, widely available and functionally equivalent to the MAX1721 charge pump.
  • LTC1144CS8 --: Switched-capacitor voltage converter/inverter with similar inverting function, suitable as a drop-in functional replacement with minor layout changes.
  • ICL7660ACPA --: Classic CMOS voltage inverter charge pump offering comparable negative-supply conversion, a well-known alternative for MAX1721 applications.

Request Quotation

For immediate assistance, call us at +86 533 2716050 or email [email protected]

Part Number Quantity Target Price($USD) Email Contact Person
We offer highly competitive channel pricing. Get in touch for details.

Specializes in hard-to-find components chips