SY7208CABC

Product Overview

The SY7208CABC is a fully synchronous step-up boost converter manufactured by Silergy, designed to deliver stable boosted output voltage from single-cell lithium batteries and low-voltage DC power supplies. It integrates low on-resistance N-MOS power switches to achieve ultra-high conversion efficiency across full load range, with fixed internal switching frequency eliminating external compensation circuit design. The device features built-in soft-start function to suppress inrush current during power-up, plus comprehensive protection mechanisms including over-temperature, over-current and under-voltage lockout protection. With wide 3V~25V input voltage coverage and simple peripheral circuit layout, this boost regulator is widely used in wearable devices, portable instrumentation, LED backlight modules, handheld consumer electronics and small IoT sensor power supply systems.

Core Advantages

• Synchronous Rectification Design: Integrated high and low side power MOSFETs, greatly improves energy conversion efficiency and reduces heat generation compared with asynchronous boost converters.
• Wide Universal Input Range: Supports 3V~25V input voltage, compatible with single-cell Li-ion, multi-cell battery packs and multiple industrial low-voltage power sources.
• Built-In Soft Start Circuit: Effectively limits peak inrush current at startup, protecting battery, inductors and peripheral passive components from impulse damage.
• Fixed Internal Switching Frequency: No external frequency setting components required, simplifies PCB layout and shortens product development cycle.
• Multi-Layer Safety Protection: Integrated thermal shutdown, cycle-by-cycle current limit and UVLO undervoltage lockout functions to ensure stable operation under abnormal working conditions.
• Miniature Surface Mount Package: Compact SOT23-6 small outline package saves PCB board space, ideal for space-limited portable and wearable electronic products.

Key Specifications

Typical Applications

• Wearable Smart Devices & Bluetooth Earphone Power Circuits
• Portable Measuring Instruments & Handheld Test Equipment
• Small LED Backlight & Miniature LED Lighting Driver Modules
• Low-Power IoT Wireless Sensor Node Power Supplies
• Single-Cell Lithium Battery Boost Power Bank Subcircuits
• Medical Portable Detection Equipment Auxiliary Power Units
• Camera Module & Small Display Screen Power Regulation Circuits

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 converter topology does SY7208CABC adopt?
A: It is a synchronous step-up boost DC-DC converter with integrated internal high/low side MOSFET switches.

Q: What is the input voltage working range of SY7208CABC?
A: The chip supports wide input voltage from 3V~25V, adapting to various battery and low voltage power supplies.

Q: Does SY7208CABC contain soft-start function?
A: Yes, built-in soft-start circuit restricts large inrush current during power on to protect peripheral components.

Q: What package form is SY7208CABC supplied in?
A: Standard SOT23-6 surface mount small package, suitable for compact PCB layout design.

Q: What protection mechanisms are integrated inside SY7208CABC?
A: Thermal over-temperature shutdown, cycle-by-cycle peak current limit and undervoltage lockout protection are all integrated on chip.

Q: Is SY7208CABC fully RoHS compliant?
A: All production batches of SY7208CABC comply with RoHS lead-free environmental standards.