5-60V Input Buck Regulator - Globalfoundries 180nm BCD

Overview

The OT1152 is an 80mA CMOS buck regulator designed for use with high input voltages and logic level output voltages..

This implementation takes a 4.5-60V input and produces a 5V voltage output at a current up to 80mA. An external bandgap bias circuit is an option. Requires GF 180nm BCD process.

Requires Globalfoundries 180nm BCD or similar process.

Key Features

Wide operating voltage range 4.5V – 60V.
Output voltage optionally 5V, or 3.3V.
Soft start.
Auxiliary 3-5V LDO output for optional external reference startup etc.
Output short circuit protection.
Works with straight-through IO pads.
External 4.7µF capacitor.
External 330µH/inductor.
Power down/enable input.
Suspend mode input lowers regulator power for light loads, by using a non-synchronous rectifier.
<2% line and load regulation.
300KHz operation.
-40°C to 125°C temperature operation.
Base cell area 0.4mm² in 0.18µ 65V BCD CMOS.
Global Foundries 180nm BCD process compatibility.
Available LDO, bandgap, and POR support cells.

Block Diagram

Applications

Power from USB-C VBUS witch may vary widely during operation.
Power from multiple different voltage power sources.
Primary PMIC voltage regulator.

Deliverables

GDS layout.
LEF outline.
Spice/CDL netlist for LVS.
Timing files.
Integration notes.

Technical Specifications

Foundry, Node

Globalfoundries 180nm BCD

GLOBALFOUNDRIES

Pre-Silicon: 180nm

TSMC

Pre-Silicon: 180nm G

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