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MAX603CSA from MAX,MAXIM - Dallas Semiconductor

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MAX603CSA

Manufacturer: MAX, MAXIM

5V/3.3V or Adjustable, Low-Dropout, Low IQ, 500mA Linear Regulators

Partnumber Manufacturer Quantity Availability
MAX603CSA MAX, MAXIM 2223 In Stock

Description and Introduction

5V/3.3V or Adjustable, Low-Dropout, Low IQ, 500mA Linear Regulators The MAX603CSA is a low-dropout (LDO) linear voltage regulator manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Output Voltage Options:** Fixed (3.0V, 3.3V, 5.0V) or Adjustable (1.25V to 11.5V).
- **Output Current:** Up to 500mA.
- **Dropout Voltage:** 120mV (typical) at 100mA load.
- **Input Voltage Range:** Up to 11.5V (fixed output), up to 12V (adjustable output).
- **Quiescent Current:** 50µA (typical).
- **Line Regulation:** 0.02%/V (typical).
- **Load Regulation:** 0.04%/mA (typical).
- **Operating Temperature Range:** 0°C to +70°C.
- **Package:** 8-pin SOIC (CSA suffix).

### **Descriptions:**
- The MAX603CSA is a precision, low-dropout linear regulator designed for battery-powered and portable applications.
- It provides stable output voltage with low noise and high PSRR (Power Supply Rejection Ratio).
- Includes thermal shutdown and current-limit protection for reliability.

### **Features:**
- **Low Dropout Voltage:** Enables operation with minimal headroom.
- **Low Quiescent Current:** Ideal for battery-powered devices.
- **Thermal Shutdown Protection:** Prevents overheating.
- **Current Limiting:** Protects against short circuits.
- **Adjustable or Fixed Output:** Offers design flexibility.
- **Stable with Low-ESR Capacitors:** Works with ceramic or tantalum capacitors.

For exact details, refer to the official datasheet from Analog Devices (formerly Maxim Integrated).

Application Scenarios & Design Considerations

5V/3.3V or Adjustable, Low-Dropout, Low IQ, 500mA Linear Regulators

Alternative Part Number

  • LT1521CS8-5 --: 5V low-dropout linear regulator in SO-8 with similar current capability and pinout, a common drop-in substitute for the MAX603.
  • LP2951CS8-5.0 --: 5V LDO regulator in SO-8 with shutdown and error flag, widely available and functionally comparable to the MAX603.
  • MC33269D-5.0 --: 5V LDO regulator in SO-8 rated for similar load current, suitable as a lower-cost alternative with comparable specifications.
  • LTC1151CS8 --: Low-dropout linear regulator in an SO-8 package with comparable current capability and pin-compatible function, widely available as a MAX603 substitute.
  • LP2951CM --: Adjustable low-dropout regulator offering similar output current and voltage range, commonly used as a drop-in replacement for MAX603-type regulators.
  • LT1121CS8-5 --: Low-dropout 5V linear regulator in SO-8 with similar current capability and pin-compatible function, widely available and a common drop-in substitute for MAX603.

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