Vendor: Obsidian Technology Category: DC/DC Converter

On-Chip IO to Core Voltage Buck Regulator on UMC 55nm ULP

The OT1153 series on-chip regulators allow for efficient on-chip conversion of IO voltages to Core voltages.

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UMC 55nm ULP View all specifications

Overview

The OT1153 series on-chip regulators allow for efficient on-chip conversion of IO voltages to Core voltages. E.g. 3.3V to 1.2V with only one external inductor and one external capacitor. 2MHz conversion frequency is used to minimize the size of the external components. Input voltages of 2.5-5V are available and currents up to 80mA. Versions with internal or external references are available. In normal operation constant on time PWM modulation is used, with an optional low power mode in which where the synchronous rectifier is disabled.

Key features

  • Input voltages of 2.5V, and 3.3V.
  • Available output currents to 100mA.
  • Available output voltages 0.91V to 1.2V.
  • Works with straight-through IO pads.
  • Soft startup.
  • Optional frequency sync input.
  • 10mVpp ripple.
  • Suspend mode input lowers regulator power for light loads, by using a non-synchronous rectifier, and low frequency.
  • Typical 50µH, and 1µF external components.
  • -40°C to 125°C temperature operation.
  • Base cell area 0.18mm2 in UMC 55nm ULP process.
  • Available reference, and frequency dither cells.

Block Diagram

OT1153_u55 block diagram

Benefits

  • Efficient on-chip core power generation from external IO power.
  • Replacement of external buck regulator chips in low power applications.

What’s Included?

  • GDS layout.
  • LEF outline.
  • Spice/CDL netlist for LVS.
  • Black box timing files.
  • Design review documentation.
  • Integration notes.

Silicon Options

Foundry Node Process Maturity
UMC 55nm ULP —

Specifications

Identity

Part Number
OT1153_u55
Vendor
Obsidian Technology
Type
Silicon IP

Files

Product Sheet Download

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

Provider

Contact Obsidian Technology

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Frequently asked questions about DC-DC Converter IP cores

What is On-Chip IO to Core Voltage Buck Regulator on UMC 55nm ULP?

On-Chip IO to Core Voltage Buck Regulator on UMC 55nm ULP is a DC/DC Converter IP core from Obsidian Technology listed on Semi IP Hub. It is listed with support for umc.

How should engineers evaluate this DC/DC Converter?

Engineers should review the overview, key features, supported foundries and nodes, maturity, deliverables, and provider information before shortlisting this DC/DC Converter 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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