MAX20730EPL

Part: MAX20730 — Maxim Integrated

Type: Fully Integrated Synchronous Switching Regulator

Description: A highly efficient, fully integrated switching regulator with PMBus for applications operating from 4.5V to 16V and requiring up to 25A load, offering high-precision output voltages and excellent transient response.

Operating Conditions:

• Supply voltage: 4.5V to 16V
• Operating temperature: -40°C to +125°C (Junction Temperature)
• Output voltage range: 0.6V to 5.5V
• Max average output current: 25A

Absolute Maximum Ratings:

• Max supply voltage (V DDH): +18V
• Max continuous current (I OUT): 25A
• Max junction temperature: +150°C
• Max storage temperature: -65°C to +150°C

Key Specs:

• Peak Efficiency: 90.8% (V DDH = 12V, V OUT = 1V)
• Load-Step Transients: Up to 300A/μs
• Output-Voltage Range: 0.6V to 5.5V
• Switching Frequency: Programmable from 400kHz to 900kHz
• Output Overvoltage Protection: 9.5% to 16.5% relative to programmed V OUT
• Positive OCP Inception Threshold: Programmable from 9.3A to 29.1A (Inductor Valley Current)
• Overtemperature Protection: Programmable 120°C to 160°C
• PMBus Clock Frequency: Up to 400kHz

Features:

• High Power Density and Low Component Count
• PMBus-Compliant Interface for Telemetry and Power Management
• Voltage, Current, and Temperature Reporting through the Digital Bus
• Increased Power-Supply Reliability with System and IC Self-Protection Features
• Differential Remote Sense with Open-Circuit Detection
• Hiccup Overcurrent Protection
• Programmable Thermal Shutdown

Applications:

• Communications Equipment
• Networking Equipment
• Servers and Storage Equipment
• Point-of-Load Voltage Regulators
• μP Chipsets
• Memory VDDQ
• I/O

Package:

• P154A6F+1

• High Power Density and Low Component Count
• Overall Solution Size 509mm 2 Including Inductor and Output Capacitors
• 90.8% Peak Efficiency with V DDH = 12V and V OUT = 1V
• Fast Transient Response: Supports Up to 300A/μs Load-Step Transients
• Optimized Component Performance and Efficiency with Reduced Design-In Time
• PMBus-Compliant Interface for Telemetry and Power Management
• Voltage, Current, and Temperature Reporting through the Digital Bus
• Increased Power-Supply Reliability with System and IC Self-Protection Features
• Differential Remote Sense with Open-Circuit Detection
• Hiccup Overcurrent Protection
• Programmable Thermal Shutdown

• Communications Equipment
• Networking Equipment
• Servers and Storage Equipment
• Point-of-Load Voltage Regulators
• μP Chipsets
• Memory VDDQ
• I/O

• For specific operating conditions, refer to the SOA curves in the Typical Operating Characteristics section.

(Circuit of Figure 6, V DDH = 4.5V to 16V, T A = +32°C, unless otherwise noted. Typical values are at T A = +32°C. All devices 100% tested at room temperature. Limits over temperature guaranteed by design.)

│

• V CC .........................................................................-0.3V to +2V
• STAT, OE, CLK, DATA, and SMALERT Pin Voltages.......................................-0.3V to +4V
• PGMA, PGMB, V SENSE+ and V SENSE- Pin Voltages .........................................-0.3V to +2V

Switching Node Voltage (VX) DC ..........................-0.3V to +18V

Switching Node Voltage (VX) 25ns (Note 2) ..........-10V to +23V

(BST - VX) Pin Differential ...................................-0.3V to +2.5V

Junction Temperature (T J ) ...............................................+150°C

Storage Temperature Range ............................ -65°C to +150°C

Peak Reflow Temperature Lead-Free .............................+260°C

Stresses beyond those listed under 'Absolute Maximum Ratings' may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages . Note that a '+', '#', or '-' in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status.

Note 1: As measured at the V DDH pin referenced to GND pin immediately adjacent using a high-frequency scope probe with I LOAD at I MAX . A high-frequency input bypass capacitor must be located less than 60 mils from the V DDH pin per our design guidelines.

Note 2: The 25ns rating is the allowable voltage on the VX node in excess of the -0.3V to +18V DC ratings. The VX voltage may exceed the DC rating in either the positive or negative direction for up to 25ns per cycle.

Note 3: See the Average Input Current Limit section.

Note 4: Data taken using Maxim's evaluation kit (MAX20730EVKIT#). The PCB has four layers of 2oz copper.

• Maximum Average Output Current (I OUT ) ............................25A
• Peak Output Current (I ).....................................................50A

│