SY7152ABC

Product Overview

The SY7152ABC is a high-efficiency synchronous step-up boost converter manufactured by Silergy, designed to provide stable boosted output voltage from 3V~8V low-voltage DC power supplies and single-cell lithium batteries. It integrates low on-resistance power MOSFETs to achieve high conversion efficiency, with internal fixed switching frequency eliminating the need for external frequency-setting components. Built-in soft-start function suppresses inrush current at power-up, while comprehensive protection mechanisms including over-temperature shutdown, cycle-by-cycle current limit and undervoltage lockout ensure reliable operation. With a wide input voltage range, simple peripheral circuit design and compact SOT23-6 package, this step-up regulator is widely used in wearable devices, handheld measuring instruments, wireless sensor nodes, camera power supply circuits and small household electronic products.

Core Advantages

• Synchronous Rectification Design: Integrated high and low side power MOSFETs significantly reduce power loss and heat generation compared with asynchronous boost converters.
• 3V~8V Wide Input Compatibility: Supports broad input voltage range, matching single-cell lithium battery packs and standard low-voltage DC power supplies.
• Built-In Soft Start Function: Effectively suppresses startup inrush current to protect inductors, capacitors and battery sources from instantaneous current impact.
• 800kHz~1.2MHz Fixed Switching Frequency: Eliminates external frequency configuration components, simplifies PCB layout and shortens product development cycle.
• Comprehensive On-Chip Safety Protection: Integrates thermal shutdown, cycle-by-cycle peak current limit and UVLO undervoltage lockout to guarantee stable operation under abnormal working conditions.
• Miniature SOT23-6 Surface Mount Package: Small footprint saves PCB layout space, perfectly suited for space-constrained portable and wearable electronic equipment.

Key Specifications

Typical Applications

• Wearable Smart Devices & Bluetooth Audio Equipment Power Supplies
• Portable Handheld Testing & Measuring Instruments
• Low-Power Wireless IoT Sensor Nodes & Transmitter Modules
• Digital Camera, Dashcam & Mini Display Power Regulation Circuits
• Single-Cell Lithium Battery Powered Consumer Gadgets
• Small Medical Portable Detection Equipment Auxiliary Power Units
• Smart Home Miniature Electronic Control Boards

Order & Shipping Info

• Minimum Order Quantity (MOQ): 1 Piece
• Shipping Time: Shipped within 1-2 business days
• Delivery Time: 3-7 working days worldwide
• Shipping Methods: DHL, UPS, FedEx, EMS
• Payment Methods: T/T (Bank Transfer), PayPal, Credit Card, Western Union

Technical Support

For datasheet, sample requests, stock check, or bulk pricing, please use the Quick Inquiry form. We will reply within 24 hours.

Frequently Asked Questions

Q: What power topology does SY7152ABC adopt?
A: It is a synchronous step-up boost DC-DC converter with integrated internal high-side and low-side power MOSFET switches.

Q: What is the input voltage working range of SY7152ABC?
A: This chip supports wide input voltage from 3V to 8V DC, compatible with single-cell lithium battery packs and low-voltage DC power sources.

Q: Does SY7152ABC integrate soft-start function?
A: Yes, built-in soft-start circuit suppresses large inrush current at startup to protect peripheral passive components and batteries.

Q: What packaging form is SY7152ABC supplied in?
A: Standard SOT23-6 surface mount small outline package, ideal for compact PCB layout design.

Q: What protective functions are built inside SY7152ABC?
A: Integrated thermal over-temperature shutdown, cycle-by-cycle peak current limit and undervoltage lockout protection.

Q: Is SY7152ABC fully RoHS compliant?
A: All production batches of SY7152ABC comply with RoHS lead-free environmental standards.