KP524208ALGA

KP524201A/08A is a simple, easy-to-use, and highly integrated synchronous buck converter. It features a wide input voltage range of 4.5V to 17V, making it well-suited for common input voltage rails such as 12V and 15V. It supports up to 4A continuous output current with an output voltage range of 0.768V to 7V. The KP524201A operates in pulse frequency modulation (PFM) mode under light load to maintain high light-load efficiency; the KP524208A operates in forced pulse width modulation (FPWM) mode to achieve a fixed switching frequency and low output ripple across the full load current range. KP524201A/08A integrates comprehensive protection features, including input undervoltage lockout (UVLO), cycle-by-cycle valley current limiting (OCL), output undervoltage hiccup protection (UVP), output overvoltage protection (OVP), and overtemperature protection (OTP), ensuring safe and reliable operation under various operating conditions. KP524201A/08A is available in a compact TSOT23-6 package with an operating junction temperature range of -40°C to 125°C.

Applications

• Set-top boxes
• Digital TV home network equipment
• Security surveillance equipment
• Smart speakers
• Electronic POS terminals
• Other general-purpose power supply applications

Key features

• Integrated 75mΩ and 45mΩ MOSFET switches
• Low quiescent current: 190μA (no switching, typical)
• Low shutdown current: 2.5μA (typical)
• High reference voltage accuracy: 0.768V±1.0% @25°C
• Comprehensive integrated protection features: precise enable control and adjustable UVLO, internal 1ms soft-start to prevent voltage/current overshoot, cycle-by-cycle valley OCL, non-latching input UVLO, output UVP, OVP, and OTP
• Compact solution size: supports MLCC ceramic capacitors, no external compensation required, small package: TSOT23-6