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KP1505X
KP1505X High-performance, low-cost offline PWM control power switch The KP1505X series is a high-performance, low-cost PWM control power switch suitable for offline low-power buck applications. It features a simple peripheral circuit and a small number of components. The built-in high-voltage MOSFET also improves the system's surge tolerance. Unlike traditional PWM controllers, the KP1505X does not have a fixed clock to drive the MOSFET. The system switching frequency adjusts automatically with the load. The chip also uses multi-mode PWM control technology, which effectively simplifies the peripheral circuit design, improves the line regulation and load regulation, and eliminates audible noise during system operation. In addition, the internal peak current detection threshold automatically adjusts according to the actual load, effectively reducing standby power consumption under no-load conditions. The KP1505X integrates comprehensive protection functions with self-recovery capabilities: VDD undervoltage protection, cycle-by-cycle current limiting, output overvoltage protection, overtemperature protection, overload protection, and VDD overvoltage protection.
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- Product Description
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- Commodity name: KP1505X
- 封装: SOP-8
- 品牌: Biyi Microelectronics
KP1505X High-performance, low-cost offline PWM control power switch The KP1505X series is a high-performance, low-cost PWM control power switch suitable for offline low-power buck applications. It features a simple peripheral circuit and a small number of components. The built-in high-voltage MOSFET also improves the system's surge tolerance. Unlike traditional PWM controllers, the KP1505X does not have a fixed clock to drive the MOSFET. The system switching frequency adjusts automatically with the load. The chip also uses multi-mode PWM control technology, which effectively simplifies the peripheral circuit design, improves the line regulation and load regulation, and eliminates audible noise during system operation. In addition, the internal peak current detection threshold automatically adjusts according to the actual load, effectively reducing standby power consumption under no-load conditions. The KP1505X integrates comprehensive protection functions with self-recovery capabilities: VDD undervoltage protection, cycle-by-cycle current limiting, output overvoltage protection, overtemperature protection, overload protection, and VDD overvoltage protection.
Main Features
• Integrated 500V high-voltage MOSFET and high-voltage startup circuit
• Optimized light-load noise, improved system anti-interference capability
• Multi-mode control, noiseless operation
• Supports buck and buck-boost topologies
• Default 12V output (FB pin open)
• Standby power consumption <50mW
• Good line regulation and load regulation
• Integrated soft-start circuit
• Built-in protection functions:
• Overload protection (OLP)
• Cycle-by-cycle current limit (OCP)
• Output overvoltage protection (OVP)
• VDD overvoltage, undervoltage, and voltage clamping protection
• Package type SOP-8
Product Model Topology Maximum Output Current Operating Mode Output Characteristics Withstand Voltage On-Resistance Startup Method Standby Power Consumption VDDmax Maximum Frequency Package (mA) (Ω) (mW) (V) (kHz) KP15051 Buck/Buck-Boost 400 DCM&CCM CV 500V MOS 9.5 High Voltage Startup <50 30 60 SOP-8 KP15052 Buck/Buck-Boost 700 DCM&CCM CV 500V MOS 4 High Voltage Startup <50 30 60 SOP-8
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