RT5760CHGH6F

The RT5760A/B/C/D is a simple, easy-to-use, 1A synchronous step-down DC-DC converter with an input supply voltage range from 2.5V to 6V. The device build-in an accurate 0.6V reference voltage and integrates low RDS(ON) power MOSFETs to achieve high efficiency in a SOT-563 (FC) package. The RT5760A/B/C/D adopts Advanced Constant On-Time (ACOT®) control architecture to provide an ultrafast transient response with few external components and to operate in nearly constant switching frequency over the line, load, and output voltage range. The RT5760A/C operate in automatic PSM that maintain high efficiency during light load operation. The RT5760B/D operate in Forced PWM that help to meet tight voltage regulation accuracy requirements. The RT5760A/B/C/D senses both FETs current for a robust over-current protection. The device features cycle-by-cycle current limit protection and prevent the device from the catastrophic damage in output short circuit, over current or inductor saturation. A built-in soft-start function prevents inrush current during start-up. The device also includes input under-voltage lockout, output under-voltage protection, and over-temperature protection to provide safe and smooth operation in all operating conditions.

Applications

• Mobile Phones and Handheld Devices
• STB, Cable Modem, and xDSL Platforms
• WLAN ASIC Power / Storage (SSD and HDD)
• General Purpose for POL LV Buck Converter

Key features

• Input Voltage Range from 2.5V to 6V
• Integrated 120mΩ and 80mΩ FETs
• 1A Output Current, up to 95% Efficiency
• 100% Duty Cycle for Lowest Dropout
• 1% Internal Reference Voltage
• 2.2MHz Typical Switching Frequency
• Power Saving Mode for Light Loads (RT5760A/C)
• Low Quiescent Current: 25μA (Typ.)
• Fast Advanced Constant On-Time (ACOT®) Control
• Internal Soft Startup (0.6ms)
• Enable Control Input
• Power Good Indicator (RT5760A/B)
• Both FETs Over-Current Protection
• Negative Over-Current Protection (RT5760B/D)
• Input Under-Voltage Lockout Protection
• Hiccup-Mode Output Under-Voltage Protection
• Over-Temperature Protection
• RoHS Compliant and Halogen Free