Until now, portable devices supplied by USB, Li-ion or NiMH batteries with voltage levels up to 5.5 V could not use standard process devices, such as 3.3 V CMOS I/O transistors. This thus lead Fabless companies to use expensive alternatives, such as external regulators or expensive process options, including HV/BCD processes.
Today, Dolphin Integration propose a cost effective alternative to such solutions with a set of Over-voltage Protection Modules (OPM). These OPM can be easily associated with embedded regulators and extend the benefit of their DELTA offering to enable:
- Over-voltage operation (up to 5.5 V) while using standard process devices, such as 3.3 V devices
- Direct connection to the battery with the capability to protect several regulators, leading to a decrease of the Bill-of-Material
Two OPMs, with and whithout a retention mode, are available for matching the main challenges of Fabless companies:
|Optimizations||low-area||low-leakage for SoC retention mode|
|Low power mode quiescent current (at ILOAD = 0 mA)||–||500 nA|
|Normal mode quiescent current (at ILOAD = 0 mA)||15 μA|
|Area (180 nm)||0.27 mm2||0.59 mm2|
|Input Voltage Range configurations||[1.9 – 4.4 V] and [2.7 – 5.5 V]|
|Availability||From 180 nm down to 55 nm|
These unique components are part of our standardized offering for Power Management Networks: the DELTA Reduced Power Kit Library.