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MAX887HESA from MAXIM,MAXIM - Dallas Semiconductor

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MAX887HESA

Manufacturer: MAXIM, MAX, MAXIM,MAXIM

100% Duty Cycle, Low-Noise, Step-Down, PWM DC-DC Converter

Partnumber Manufacturer Quantity Availability
MAX887HESA MAXIM, MAX, MAXIM,MAXIM 36755 In Stock

Description and Introduction

100% Duty Cycle, Low-Noise, Step-Down, PWM DC-DC Converter The MAX887HESA is a low-dropout linear regulator manufactured by Maxim Integrated. Below are its specifications, descriptions, and features based on factual information:  

### **Specifications:**  
- **Input Voltage Range:** 2.5V to 6.5V  
- **Output Voltage Options:** Fixed (e.g., 3.3V, 5V) or adjustable (1.25V to 5.5V)  
- **Output Current:** Up to 150mA  
- **Dropout Voltage:** 120mV (typical) at 100mA load  
- **Quiescent Current:** 50µA (typical)  
- **Load Regulation:** 0.05%/mA (typical)  
- **Line Regulation:** 0.02%/V (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin SOIC  

### **Descriptions:**  
The MAX887HESA is a low-dropout (LDO) linear regulator designed for battery-powered applications. It provides stable output voltage with minimal power loss, making it suitable for portable electronics. The device includes features such as thermal shutdown and current limiting for protection.  

### **Features:**  
- **Low Dropout Voltage:** Ensures efficient operation even with small input-output differentials.  
- **Low Quiescent Current:** Extends battery life in portable applications.  
- **Thermal Shutdown Protection:** Prevents damage from overheating.  
- **Current Limit Protection:** Safeguards against excessive load currents.  
- **Stable with Low-ESR Capacitors:** Works reliably with ceramic capacitors.  
- **Adjustable or Fixed Output Options:** Provides flexibility for different design needs.  

For exact details, refer to the official datasheet from Maxim Integrated.

Application Scenarios & Design Considerations

100% Duty Cycle, Low-Noise, Step-Down, PWM DC-DC Converter

Alternative Part Number

  • LTC1144CS8 --: Switched-capacitor voltage converter in an 8-pin SOIC package with comparable input range and output current, a common drop-in style replacement for MAX887-class charge pumps.
  • ICL7660CSA --: Classic industry-standard charge-pump voltage converter in SOIC-8, widely available and functionally similar for inverting/doubling supply applications.
  • LM2662M --: Switched-capacitor voltage converter in SOIC-8 with adjustable frequency and low quiescent current, suitable as a functional substitute where exact MAX887 specs are not critical.
  • ICL7660SCPA --: Classic charge-pump voltage inverter offering similar negative-supply conversion, available in DIP/SOIC and easy to substitute with minor layout checks.
  • LTC1149CS8 --: High-efficiency step-down switching regulator in an 8-pin SOIC package, functionally similar to the MAX887HESA with comparable input voltage range and current capability.
  • LM2674M-5.0 --: Simple switcher buck regulator in SOIC-8, 5V fixed output, widely available and a common drop-in style alternative for MAX887-class regulators.
  • MC34063ACD --: Versatile DC-DC converter IC in SOIC-8 that can be configured as a step-down regulator, low cost and broadly stocked as a fallback option.
  • LM2674M-ADJ --: Adjustable step-down switching regulator in SOIC-8 with similar switching frequency and load current, widely available and pin-compatible in function.
  • ICL7660CPA --: Classic charge-pump voltage inverter in DIP package, functionally comparable and easy to source.
  • TC7660CPA --: Low-cost charge-pump voltage converter with similar operating principle and DIP package compatibility.

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