S-1701B5043-M5T1G

Overview

The S-1701B5043-M5T1G is a dual-output low dropout (LDO) voltage regulator from ABLIC, featuring integrated voltage detection capabilities. It provides fixed output voltages of 4.3 V and 5.0 V with a maximum output current of 400 mA per channel. The device operates within an input voltage range of 2 V to 6.5 V and maintains a typical quiescent current of 85 µA. Packaged in a compact SOT-23-5 surface-mount format, it supports an operating temperature range from -40°C to +85°C. Key performance metrics include a line regulation of 0.2%/V, load regulation of 40 mV, and a maximum power dissipation of 420 mW.

Feature Summary

• Dual independent fixed output channels providing 4.3 V and 5.0 V regulation simultaneously
• Integrated voltage detector function for system supervision combined with power management
• Low quiescent current consumption of 85 µA for efficient battery-powered applications
• High output current capability of 400 mA with low dropout characteristics

Applications

• Portable electronic devices requiring multiple stable voltage rails
• Battery-operated systems needing efficient power management and monitoring
• Embedded circuits requiring simultaneous logic and sensor power supply
• Industrial control modules with strict thermal and space constraints

Procurement Notes

Verify the exact part number suffix against official ABLIC documentation to confirm package type and tape/reel specifications. Ensure compatibility with standard SOT-23-5 footprint dimensions during PCB layout. Confirm that the required output currents do not exceed the 400 mA limit under maximum ambient temperature conditions. Check for any recent product change notifications regarding manufacturing site or material composition updates before finalizing procurement orders.

Selection Notes

Select this component when dual regulated outputs are needed alongside voltage monitoring in a single package. The SOT-23-5 package is suitable for space-constrained designs compared to larger alternatives. Consider the 420 mW power dissipation limit when designing thermal paths for high-load scenarios. Verify that the input voltage range covers the minimum battery discharge voltage for the target application.

Part Context

This model belongs to the S-1701 series of combo voltage detectors and regulators. The series is designed to integrate power regulation and system supervision functions into a single IC, reducing component count and board space. It complements other ABLIC PMIC solutions by offering a specialized combination of LDO regulation and voltage detection features for modern embedded applications.

Replacement Considerations

Direct substitutes within the S-1701 family include parts with different output voltage combinations but identical electrical characteristics and pin configurations. Verify that alternative part numbers maintain the same SOT-23-5 package and 400 mA output current rating. Cross-reference datasheets to ensure compatible line and load regulation specifications for seamless integration.