The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper describes the system design considerations and challenges faced during the design of automotive power management ICs (PMIC). Rear view camera have been considered as a case study because of wide spread acceptance as driver assistance systems. Optimal IC architectures with DC-DC and LDO combination and their trade-offs have been carefully analyzed. Key considerations regarding automotive...
This paper presents a novel fast transient suppression technique to improve the transient response of dc-dc converters with minimal area overhead and power dissipation. The proposed pseudo error voltage technique is implemented in AMS 0.35μm high-voltage CMOS process for wide supply range automotive dc-dc converter. For 18 V to 3.3 V conversion, the proposed technique suppress overshoot voltage from...
This paper proposes on-chip soft-start method with minimum extra components and turbulence free start up of dc-dc converter. During the soft start, the output voltage is slowly increased to the steady state value so that the inrush current and overshoots are prevented. The proposed topology is implemented in buck converter designed to give 3.3V output for wide supply range of 4.5V to 18V and load...
This paper proposes a novel method for ripple cancellation in multi-phase converters. Unlike the conventional multi-phase converter, the proposed topology can cancel the ripple irrespective of the duty ratios. The proposed topology is designed to give 3.3V output for wide supply range of 4.5 to 18V and load range of 0 to 3A in AMS 0.35um high-voltage CMOS process. Transistor level simulation results...
A switching converter (DC-DC) cascaded with parallel low dropout regulators (LDO) gives the best trade off in terms of high system efficiency and low output ripple for automotive Power Management ICs (PMIC). The minimum DCDC output voltage is dependent on the highest LDO output and its corresponding dropout voltage. An adaptive LDO dropout technique based on Maximum Load Current Selector (MLCS) circuit...
A switching converter (DC-DC) cascaded with a low dropout regulator (LDO) gives the best trade off in terms of high system efficiency and low output ripple for automotive power management applications. The dropout voltage of the LDO is fixed based on its peak load. An adaptive LDO dropout technique, based on LDO load-current sensing, has been proposed to improve the moderate and light load system...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.