Renesas RAA211233

Description

The RAA211233 is an integrated 24V, 3A, 1.4MHz synchronous buck regulator with current mode constant on-time (COT) control. The RAA211233 features comprehensive protection including input undervoltage lockout (UVLO), overcurrent protection (OCP), output undervoltage protection (OUVP), and over temperature protection (OTP).

Features

• 4.5V to 24V input supply range
• Up to 3A output current
• Integrated high-side (85mΩ) and low-side (45mΩ) MOSFETs
• 1.4MHz switching frequency
• 400μA quiescent current
• Minimum on-time of 66ns
• Minimum off time of 250ns
• 0.6V reference voltage with 2% accuracy
• PFM mode under light-load condition
• Current mode Constant On-Time (COT) control with internal compensation
• Internal 1.2ms soft-start time
• Protection: Low-Side Overcurrent (LSOC) limit, input Undervoltage Lockout (UVLO), Over-Temperature Protection (OTP), Output Undervoltage Protection (OUVP) with Hiccup Mode
• Accurate EN threshold
• 6 LD TSOT23 package

Typical applications

• Embedded systems and I/O supplies
• Industrial power supplies

More information

• Datasheet
• IC product information