- All
- Product Management
- News
- Introduction
- Corporate Outlets
- FAQ
- Corporate Video
- Corporate Brochure
KP523211B/18B
KP523211B/18B is a 4.5V to 17V input, 3A output, 1200kHz synchronous buck converter in a SOT23-6 package. KP523211B/18B 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 ideal for various common input voltage rails such as 12V and 15V. It supports a continuous output current of up to 3A with an output voltage range of 0.6V to 7V. KP523211B operates in Pulse Frequency Modulation (PFM) mode at light loads to maintain high light-load efficiency; KP523218B operates in Forced Pulse Width Modulation (FPWM) mode for a fixed switching frequency and low output ripple at full load current. KP523211B/18B integrates comprehensive protection features, including Under Voltage Lockout (UVLO), Cycle-by-Cycle Current Limiting (OCL), Undervoltage Protection (UVP), Overvoltage Protection (OVP), and Over Temperature Protection (OTP), to ensure safe and reliable operation under various operating conditions. KP523211B/18B is available in a small SOT23-6 package and operates over a junction temperature range of -40℃ to 125℃.
Category：
- Product Description
-
- Commodity name: KP523211B/18B
- 封装: SOT23-6
- 品牌: Biyi Microelectronics
KP523211B/18B is a 4.5V to 17V input, 3A output, 1200kHz synchronous buck converter in a SOT23-6 package. KP523211B/18B 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 ideal for various common input voltage rails such as 12V and 15V. It supports a continuous output current of up to 3A with an output voltage range of 0.6V to 7V. KP523211B operates in Pulse Frequency Modulation (PFM) mode at light loads to maintain high light-load efficiency; KP523218B operates in Forced Pulse Width Modulation (FPWM) mode for a fixed switching frequency and low output ripple at full load current. KP523211B/18B integrates comprehensive protection features, including Under Voltage Lockout (UVLO), Cycle-by-Cycle Current Limiting (OCL), Undervoltage Protection (UVP), Overvoltage Protection (OVP), and Over Temperature Protection (OTP), to ensure safe and reliable operation under various operating conditions. KP523211B/18B is available in a small SOT23-6 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: 0.6V to 7V
• Supports 3A continuous output current
• Switching frequency of 1200kHz in continuous inductor current mode
• Integrated low on-resistance MOSFET switches
• Low quiescent current: 190μA (no switching action, typical value)
• Low shutdown current: 2.5μA (typical value)
• Uses constant on-time control to achieve ultra-fast dynamic response
• Two light-load operating modes:
• KP523211B: Pulse Frequency Modulation (PFM)
• KP523218B: Forced Pulse Width Modulation (FPWM)
• High reference voltage accuracy: 0.6V ±1.5% @25℃
• Integrated comprehensive protection functions:
• Precise enable control and adjustable undervoltage lockout function
• Internal 0.8ms soft-start time to avoid overvoltage and overcurrent
• Cycle-by-cycle valley current limiting protection (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 a low number of output capacitors
• No external compensation required
• Small package type: SOT23-6
Product Message
Please fill in the information accurately, and we will reply to you within 24 hours.
Official Account
E-mail：
Company Address：
Room 819, Dongmei Building, Xiangnan Three District, Minqiang Community, Minzhi Street, Longhua District, Shenzhen
