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KP525201A/08A
KP525201A/08A A 4.5V to 17V input, 5A output, 500kHz synchronous buck converter in a TSOT23-6 package. The KP525201A/08A is a simple, easy-to-use, and highly efficient integrated synchronous buck converter. It features a wide input voltage range of 4.5V to 17V, making it ideal for various common input voltage rails such as 12V and 15V. It supports a continuous output current of up to 5A, with an output voltage range of 0.76V to 7V. The KP525201A operates in Pulse Frequency Modulation (PFM) mode under light load to maintain high light load efficiency; the KP525208A operates in Forced Pulse Width Modulation (FPWM) mode to achieve a fixed switching frequency and low output ripple under full load current. The KP525201A/08A integrates comprehensive protection features, including input undervoltage protection (UVLO), input overvoltage protection (OVP), cycle-by-cycle valley current limiting protection (OCL), peak current limiting protection (OCL), output undervoltage hiccup protection (UVP), output overvoltage protection (OVP), and overtemperature protection (OTP), to ensure safe and reliable operation under various working conditions. The KP525201A/08A is available in a small TSOT23-6 package and operates over a junction temperature range of -40℃ to 125℃.
Category：
- Product Description
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- Commodity name: KP525201A/08A
- 封装: TSOT23-6
- 品牌: Biyi Microelectronics
KP525201A/08A A 4.5V to 17V input, 5A output, 500kHz synchronous buck converter in a TSOT23-6 package. The KP525201A/08A is a simple, easy-to-use, and highly efficient integrated synchronous buck converter. It features a wide input voltage range of 4.5V to 17V, making it ideal for various common input voltage rails such as 12V and 15V. It supports a continuous output current of up to 5A, with an output voltage range of 0.76V to 7V. The KP525201A operates in Pulse Frequency Modulation (PFM) mode under light load to maintain high light load efficiency; the KP525208A operates in Forced Pulse Width Modulation (FPWM) mode to achieve a fixed switching frequency and low output ripple under full load current. The KP525201A/08A integrates comprehensive protection features, including input undervoltage protection (UVLO), input overvoltage protection (OVP), cycle-by-cycle valley current limiting protection (OCL), peak current limiting protection (OCL), output undervoltage hiccup protection (UVP), output overvoltage protection (OVP), and overtemperature protection (OTP), to ensure safe and reliable operation under various working conditions. The KP525201A/08A is available in a small TSOT23-6 package and operates over a junction temperature range of -40℃ to 125℃.
Main Features
• Wide input voltage range: 4.5V to 17V
• Output voltage range: 0.76V to 7V
• Supports 5A continuous output current
• Switching frequency of 500kHz in continuous inductor current mode
• Integrated low on-resistance MOSFET switches
• Low quiescent current: 200μA (no switching action, typical value)
• Low shutdown current: 3μA (typical value)
• Uses constant on-time control for ultra-fast dynamic response
• Two light-load operating modes:
• KP525201A: Pulse Frequency Modulation (PFM) mode
• KP525208A: Forced Pulse Width Modulation (FPWM) mode
• High reference voltage accuracy: 0.76V ±1.0% @25℃
• Integrated comprehensive protection functions:
• Precise enable control and adjustable undervoltage lockout function
• Internal 1ms soft-start time to avoid voltage and current overshoot
• Cycle-by-cycle peak current limiting (OCL)
• Non-latching input undervoltage protection (UVLO), output undervoltage protection (UVP),
output overvoltage protection (OVP) and overtemperature protection (OTP)
• Compact solution size:
• Supports the use of MLCC ceramic capacitors and supports low output capacitance
• No external compensation required
• Small package type: TSOT23-6
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