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S-875043BUP-ABBT2G

Manufacturer: SEIKO

HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Partnumber Manufacturer Quantity Availability
S-875043BUP-ABBT2G,S875043BUPABBT2G SEIKO 1482 In Stock

Description and Introduction

HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION The part **S-875043BUP-ABBT2G** is a **DC/DC Converter IC** from **ABLIC Inc.** (formerly Seiko Instruments). Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Input Voltage Range:** 1.8V to 6.0V  
- **Output Voltage:** Adjustable (via external resistors)  
- **Output Current:** Up to **300mA**  
- **Switching Frequency:** **1.2MHz** (typical)  
- **Efficiency:** Up to **90%**  
- **Operating Temperature Range:** **-40°C to +85°C**  
- **Package Type:** **SOT-23-5**  

### **Descriptions & Features:**  
- **Step-Up DC/DC Converter:** Converts a low input voltage to a higher regulated output voltage.  
- **Low Start-Up Voltage:** Operates from **1.8V**, making it suitable for battery-powered applications.  
- **Built-in MOSFET:** Includes an integrated **N-channel switching transistor** for compact design.  
- **Soft-Start Function:** Prevents inrush current at startup.  
- **Low Quiescent Current:** **12µA** (typical) in shutdown mode for power-saving applications.  
- **Overcurrent Protection (OCP):** Safeguards against excessive load conditions.  
- **Compact & Lightweight:** Small **SOT-23-5** package ideal for space-constrained designs.  

This IC is commonly used in **portable electronics, IoT devices, and battery-powered systems**.  

Would you like additional details on pin configurations or application circuits?

Application Scenarios & Design Considerations

HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION

Alternative Part Number

  • AP7361C-33E --: Low-dropout linear regulator with 3.3V fixed output and similar current capability, suitable replacement for the ABB-type regulator in many applications.
  • MIC5219-3.3YM5 --: 3.3V LDO regulator with comparable dropout and load current, widely available and pin-compatible in SOT-23-5 style packages.
  • LP2985AIM5-3.3 --: Stable 3.3V low-noise LDO with similar voltage accuracy and current rating, a common cross-reference for small SOT-23 regulators.
  • S-875043BUP-ABBT2U --: Same S-875043B series voltage detector from ABLIC (former Seiko Instruments), with identical function and pinout; the U suffix denotes a different packing option, making it a direct drop-in replacement.
  • S-875043BUP-ABBT2G --: ABLIC is the successor brand of Seiko's semiconductor division and continues to produce this exact part; sourcing from ABLIC ensures identical specifications and long-term availability.
  • S-80843CLUA-B6PT2G --: S-80843 series voltage detector from ABLIC offers comparable detection voltage and output configuration, serving as a functional alternative when the S-875043B series is unavailable.

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