Vendor: Obsidian Technology Category: LDO Voltage Regulator

Low Dropout Linear Regulator - TSMC 0.18µ

The OT1105t180 is a 150mA CMOS low dropout regulator designed for use in a wide variety of mixed signal device applications.

Overview

The OT1105t180 is a 150mA CMOS low dropout regulator designed for use in a wide variety of mixed signal device applications. It is designed for use with an external vdd/capacitor pin. (See OT1104 for internal capacitor version.)

Designed for TSMC 0.18µ processes.

Key features

  • Input voltage range 3.0V – 5.5V.
  • Output voltage 1.8V ±5%.
  • Output fold back short circuit protection.
  • Over-temperature protection.
  • Works with straight-through IO pads.
  • External 4.7µF decoupling capacitor.
  • Power down/enable input.
  • Fast response to current steps.
  • <1% line and load regulation.
  • Can be back powered.
  • PSRR 70dB @ 1MHz.
  • -40°C to 120°C temperature operation.
  • Base cell area 0.03mm2 in 0.18µ CMOS.

Block Diagram

Applications

  • LiFe Battery to 1.8V core voltage regulator.
  • 3.3V or 5V power to 1.8V core voltage regulator.

What’s Included?

  • Flat GDS.
  • LEF.
  • LVS netlist.
  • Integration notes.
  • Production test notes.

Specifications

Identity

Part Number
OT1105t180
Vendor
Obsidian Technology
Type
Silicon IP

Files

Note: some files may require an NDA depending on provider policy.

Provider

Learn more about LDO Voltage Regulator IP core

The Tradeoffs of Low Dropout (LDO) Voltage Regulator Architectures and the Advantages of "Capless" LDOs

Power management of battery-powered electronic devices is becoming increasingly more important for the microelectronics industry. This white paper details the difference between low dropout (LDO) voltage regulators that use external output capacitors and those that do not, and how your system designs can benefit from not using an output capacitor. Well-designed capless LDO voltage regulators can have multiple benefits, and they are presented here.

Power Management for Internet of Things (IoT) System on a Chip (SoC) Development

There are many factors that must be considered when developing a custom System on a Chip (SoC) for Internet of Things (IoT) applications. Chief among these are the power management circuits on the die. Vidatronic offers this white paper to discuss these considerations and all of the various circuit blocks that can be found in this application. Vidatronic IP solutions are discussed and the benefits they bring to IoT SoC designers.

Tradeoffs of LDO Architectures and the Advantages of Advanced Architecture "Capless" LDOs

Power management of battery-powered electronic devices is becoming increasingly more important for the present and future microelectronics industry. This application note details the difference between low dropout (LDO) voltage regulators that use output capacitance and those that do not and how your system designs can benefit from or be improved by not using an output capacitor.

Introduction to Low Dropout (LDO) Linear Voltage Regulators

Linear voltage regulators are key components in any power-management system that requires a stable and ripple-free power supply. A subset of linear voltage regulators is a class of circuits known as low dropout (LDO) regulators. This paper explains the fundamentals of LDOs and introduces Vidatronic’s LDO technology which solves many of the known shortcomings of LDO circuits.

Frequently asked questions about LDO Voltage Regulator IP cores

What is Low Dropout Linear Regulator - TSMC 0.18µ?

Low Dropout Linear Regulator - TSMC 0.18µ is a LDO Voltage Regulator IP core from Obsidian Technology listed on Semi IP Hub.

How should engineers evaluate this LDO Voltage Regulator?

Engineers should review the overview, key features, supported foundries and nodes, maturity, deliverables, and provider information before shortlisting this LDO Voltage Regulator IP.

Can this semiconductor IP be compared with similar products?

Yes. Buyers can compare this product with similar semiconductor IP cores or IP families based on category, provider, process options, and structured technical specifications.

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