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MAX1922ESA from MAXIM,MAXIM - Dallas Semiconductor

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MAX1922ESA

Manufacturer: MAXIM, MAXIN, MAXI, MAX

1A Current-Limited Switch for 2 USB Ports

Partnumber Manufacturer Quantity Availability
MAX1922ESA MAXIM, MAXIN, MAXI, MAX 82979 In Stock

Description and Introduction

1A Current-Limited Switch for 2 USB Ports The MAX1922ESA is a low-dropout (LDO) linear regulator manufactured by Maxim Integrated (now part of Analog Devices). Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**  
- **Manufacturer:** Maxim Integrated (MAXIM)  
- **Part Number:** MAX1922ESA  
- **Package:** 8-pin SOIC (Small Outline Integrated Circuit)  
- **Input Voltage Range:** 2.5V to 6.5V  
- **Output Voltage Range:** Adjustable from 1.25V to 5.5V (fixed versions also available)  
- **Output Current:** Up to 500mA  
- **Dropout Voltage:** 120mV (typical) at 300mA load  
- **Quiescent Current:** 85µA (typical)  
- **Load Regulation:** 0.05%/mA (typical)  
- **Line Regulation:** 0.01%/V (typical)  
- **PSRR (Power Supply Rejection Ratio):** 70dB at 1kHz  
- **Operating Temperature Range:** -40°C to +85°C  
- **Protection Features:** Overcurrent and thermal shutdown  

### **Descriptions:**  
The MAX1922ESA is a high-performance, low-dropout linear regulator designed for applications requiring stable, low-noise power. It provides excellent line and load regulation with very low quiescent current, making it suitable for battery-powered devices. The adjustable output version allows flexibility in setting the desired voltage via external resistors.  

### **Features:**  
- Low dropout voltage (120mV typical at 300mA)  
- Ultra-low quiescent current (85µA typical)  
- High PSRR (70dB at 1kHz)  
- Adjustable or fixed output voltage options  
- Overcurrent and thermal protection  
- Stable with low-ESR ceramic capacitors  
- Small 8-pin SOIC package for space-constrained designs  

This information is strictly factual and derived from the manufacturer's datasheet.

Application Scenarios & Design Considerations

1A Current-Limited Switch for 2 USB Ports

Alternative Part Number

  • TPS2041BDBVR --: Current-limited power distribution switch in SOT-23-5, functionally similar to the MAX1922 current-limited switch with comparable voltage and current ratings.
  • MIC2026-1YM --: Dual-channel current-limited power switch in SOIC-8 offering similar current limiting and thermal shutdown protection for USB and load-switch applications.
  • AP2553W6-7 --: Single-channel current-limited load switch in SOT-26 with adjustable current limit, suitable as a functional replacement for the MAX1922 in power distribution designs.
  • AP2191SG-13 --: Single-channel current-limited power switch in SO-8, comparable current-limit and enable features for USB port protection.

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