LP2188A Datasheet | LANDP

Machine Translated by Google Non-isolated step-down switching power supply constant voltage control driver Overview Features LP2188A is a high-efficiency and high-precision non-isolated step-down switching power supply constant voltage control driver chip. It is suitable for non-isolated Buck and Buckboost topologies with a full range of input voltages from 85VAC to 265VAC, and is especially suitable for driving power supplies such as small appliances and white appliances. ÿ Integrated 750V power tube ÿ Constant voltage control, fixed 5V output voltage ÿ Built-in unique peak current control, no CS resistor required ÿ Built-in startup circuit, no startup resistor required ÿ Excellent LP2188A integrates high-voltage power tubes and adopts constant voltage control dynamic performance ÿ Excellent mode. The system can work in CCM and DCM modes. It adopts a unique PFM EMI characteristics ÿ Excellent control method to improve audio characteristics. output load regulation rate ÿ Low standby Built-in unique peak current control, no CS resistor required; built-in startup circuit, no startup resistor required. Simple peripheral application and high reliability. power consumption <75m W ÿ Excellent audio characteristics in the full load range ÿ Multiple protection functions LP2188A has multiple protection functions, including VCC clamping/undervoltage protection, output short circuit protection, inductor overcurrent protection and over- temperature protection. application LP2188A adopts SOP7L ÿ Open power supplies such as small appliances and white appliances Typical Applications Ordering Information Order model LP2188A - xxxx: batch number Figure 1 LP2188A Buck Typical Application Encapsulation SOP7L Packaging Taping 4000 pcs/reel seal LP2188 Axxx LP2188A_CN_DS_Rev.0.98 Page 2 / 8 .chip-hope. SHENZHEN Chip Hope Micro-electronics LTD Confidential- Customer Use Only Machine Translated by Google Pin package Non-isolated...