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MAX735ESA from MAXIM,MAXIM - Dallas Semiconductor

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MAX735ESA

Manufacturer: MAXIM, MAX

Negative output, inverting, current-mode PWM regulator. Converts +4V to +6.2V input to -5V output.

Partnumber Manufacturer Quantity Availability
MAX735ESA MAXIM, MAX 501 In Stock

Description and Introduction

Negative output, inverting, current-mode PWM regulator. Converts +4V to +6.2V input to -5V output. The MAX735ESA is a microprocessor (μP)-supervisory circuit manufactured by Maxim Integrated. Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX735ESA  
- **Package:** 8-SOIC (150mil)  
- **Operating Voltage Range:** 1.2V to 5.5V  
- **Reset Threshold Options:** Adjustable or fixed (factory-set)  
- **Reset Timeout Period:** 140ms (min)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Quiescent Current:** 12μA (typical)  
- **Output Type:** Active-low, push-pull  

### **Descriptions:**
- The MAX735ESA is a low-power microprocessor supervisor designed to monitor system voltage and provide a reset signal to the μP during power-up, power-down, or brownout conditions.  
- It ensures reliable system operation by holding the μP in reset until the supply voltage stabilizes.  
- The device is available with either fixed or adjustable reset thresholds to accommodate different voltage monitoring requirements.  

### **Features:**
- **Low Power Consumption:** 12μA typical quiescent current.  
- **Wide Operating Voltage Range:** 1.2V to 5.5V.  
- **Factory-Set or Adjustable Reset Threshold:** Allows flexibility in design.  
- **Guaranteed Reset Valid Down to VCC = 1V:** Ensures reliable operation even at low voltages.  
- **140ms Min Reset Timeout Period:** Prevents premature system restart.  
- **Push-Pull Active-Low Reset Output:** No external pull-up resistor required.  
- **Small 8-Pin SOIC Package:** Space-efficient for compact designs.  

This information is strictly based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Negative output, inverting, current-mode PWM regulator. Converts +4V to +6.2V input to -5V output.

Alternative Part Number

  • LT1073CS8 --: Pin-compatible inverting switching regulator in SO-8 with similar input voltage range and current capability, widely used as a MAX735 substitute.
  • MC34063ACD --: Industry-standard inverting/step-down/step-up DC-DC controller in SO-8, functionally equivalent for most MAX735 inverting applications at lower cost.
  • LTC1144CS8 --: Switched-capacitor voltage inverter in SO-8 offering similar negative-output conversion, suitable when a charge-pump topology is acceptable.
  • LTC1550CS8 --: Inverting charge pump DC-DC converter in SO-8 with similar input range and output current, a direct functional substitute for the MAX735.
  • ICL7660CSA --: Classic inverting charge pump converter in SO-8, widely available and pin-compatible in function for negative supply generation.
  • TC7660EOA --: Inverting charge pump in SO-8 with comparable voltage range and current capability, suitable drop-in functional replacement.

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