STODD03数据手册集成电路（IC）的电源管理-专用规格书PDF

描述 Description

The STODD03 is a 2-channel power management device intended for Blu-Ray applications based on high density optical storage devices. It integrates one step-down converter able to provide 3.3 V fixed output voltage up to 700 mA load, and one step-up converter to provide the power supply needed for the blue laser in applications where only 5 V input voltage is available. The step-up output voltage is adjustable in the range from 6.5 V to 14 V, with current capability up to 500 mA. Both step-down and step-up channels integrate low RDS_ONN-channel and P-channel MOSFETs, allowing high DC-DC efficiencies. The enable function with true shutdown makes the step-up section particularly suitable for optical storage power management applications. Moreover, the STODD03 has a 1 A integrated power switch for motor control power supply. The high switching frequency allows the use of tiny SMD components. Low output ripple voltage is achieved thanks to the current mode PWM topology. The device includes soft-start control, thermal shutdown, and peak current limit to prevent damage due to accidental overload. The STODD03 is packaged in a QFN16 (4 x 4 mm).

特性 Features

• 1.2 MHz DC-DC current mode PWM converter
• Input voltage from 4 V up to 6 V
• Step-down 3.3 V fixed output voltage, up to 700 mA load
• Step-up output current up to 500 mA
• 2% step-down output voltage tolerance
• 3% step-up output voltage tolerance
• Synchronous rectification
• Step-down power-save mode at light load
• Typical efficiency: 90%
• Internal soft-start
• Enable functions
• True cutoff function for step-up converter
• Integrated motor control power switch
• Uses tiny capacitors and inductors
• Available in QFN16 (4 x 4 mm)

简介

STODD03属于集成电路（IC）的电源管理-专用。由制造生产的STODD03电源管理 - 专用专用型电源管理集成电路 (PMIC) 用于电源的控制或操作，适合特定或小范围的目标应用，例如汽车气囊管理、电容器组平衡、AC 公共电力监控、存储器总线端接、接地故障检测、能量收集、小型引擎管理、处理器或芯片集专用电压调节、负载突降保护、触觉驱动器、热电制冷器控制等。