Power & Power Management Products

HQC3052 (Low Voltage Synchronous Boost Converter)

• Input voltage: 0.7V to 4.5V
• Output voltage: 3.3V (1.8V to 5.0V)
• Peak input current limit: 1.2A
• Output current at 3.3V: 80mA with 1.0V input
• Efficiency up to 94%
• Switching frequency: 1.2MHz
• Internal synchronous rectifier and anti-ringing circuit
• Automatic power save
• Operating supply current: 50μA
• Shutdown current: 0.1μA (typ)
• SOT23-6 packages
• Applications: Consumer Electronics, PCMCIA cards, Memory Cards.

HQC3041 (Charge Pump Regulator)

• Input voltage range: 2.9V to 5.5V 
• VOUT tolerance: 5.0V ±3% 
• Continuous output current: 275mA 
• Peak output current: 500mA 
• Charge pump modes: 1x, 1.5x, 2x 
• Output ripple ≤ 30mVPP for IOUT ≤ 400mA 
• Short circuit, over-voltage, and over-temperature protection 
• Soft-start functionality 
• Shutdown current: 0.1μA, typical 
• DFN-8 packages: 2 x 2 x 0.6 (mm) 
• Applications: Consumer Electronics, USB On-The-Go 

HQC2010 (Single-cell Li-ion Battery Charger)

• Complete charger for single-cell Li-ion/polymer batteries
• Current sensor and thermal protection 
• No external blocking diode required
• Voltage accuracy over-temperature and input voltage range: 25mV 
• Voltage accuracy at room temperature: 15mV 
• Programmable charge current and end-of-charge current
• Preconditioning mode for deeply discharged battery
• Power presence and charge indications
• Leakage current: less than 3μA
• 16 LD QFN packages
• Applications: Consumer Electronics, Blue-Tooth Devices

HQC1831 (Protection for Single-cell Li-ion/Polymer Batteries)

• Over-charge detection
• Over-discharge detection
• Charge over-current detection
• Discharge over-current detection
• Short detection
• Optional zero voltage charging enable or disable.
• Input voltage: 1.5 ~ 10.0V
• Current consumption (VDD=3.9V): 3.0μA (typ.)
• Stand-by current (VDD=2.0V): 0.2μA (typ.)
• Device form, Wafer form, SOT-26 packages
• Applications: Li-ion Battery Protection

HQC2525 (Single Channel Power Distribution Switch)

• Meets or exceeds USB Rev. 1.1 and 2.0 specification
• 2.7V to 5.5V input voltage range
• Low MOSFET RON (<120mΩ at 5V)
• 500mA continuous load current
• Current limit; 1.0A
• Soft-start turn on eliminates in-rush induced voltage drop 
• Short circuit protection with thermal shutdown
• Under-voltage lockout
• Max. 20μA standby current
• 150μA Max. operating current
• 8-SOP Packages
• Applications: USB Power Management, General Purpose Hot Plug-in Power Supplies

HQC2802 (Backup Battery Pack Manager)

• Single chip solution for mobile power, backup battery pack, or power bank
• 5V/2.5A constant output current limit in boost mode
• Boost Efficiency: 95% (Vbat=4.1V): 
• Programmable battery voltage: 4.1V ~ 4.35V 
• Adaptive to 10mA-2400mA input sources
• Low battery leakage current at HZ mode during storage: <10μA
• Battery over current, over voltage, over temperature, and short circuit protections
• Auto startup with load detection
• Up to 3.0A input current limit with prioritized power path to output
• 1.1MHz/0.55MHz switching frequencies
• 2.2uH Inductor and low profile ceramic capacitor
• Battery disconnection at output short
• Full cycle battery charge management
• Preconditioning, fast Charge, top off and end of charge
• 24 QFN 4x4 Packages
• Applications: Backup Battery Pack, Power Bank, Mobile Power