MAX20745

Integrated, Step-Down Switching Regulator

Monolithically Integrated, Step-Down Switching Regulator with High Power Density and Low Component Count


Description

The MAX20745 is a fully integrated, highly efficient switching regulator for applications operating from 4.5V to 16V and requiring up to 25A maximum load. This singlechip regulator provides extremely compact, high-efficiency power-delivery solutions with high-precision output voltages and excellent transient response for networking, datacom, and telecom equipment.

The IC offers a broad range of programmable features through capacitors and resistors connected to dedicated programming pins. Using this feature, the operation can be optimized for a specific application, reducing the component count- and/or setting-appropriate trade-offs between the regulator's performance and system cost. Ease of programming enables using the same design for multiple applications.

The MAX20745 includes protection capabilities. Positive and negative cycle-by-cycle overcurrent protection and overtemperature protection ensure a rugged design. Input undervoltage lockout shuts down the device to prevent operation when the input voltage is out of specification. A status pin provides an output signal to show that the output voltage is within range and the system is regulating.
MAX20745: Typical Application Circuit MAX20745: Typical Application Circuit Enlarge+

Key Features

  • High Power Density and Low Component Count
    • Overall Solution Size: 509mm2 Including Inductor and Output Capacitors
    • 90.8% Peak Efficiency: VDDH = 12V and VOUT = 1V
    • Fast Transient Response: Supports Up to 300A/μs Load-Step Transients
  • Optimized Component Performance and Efficiency with Reduced Design-In Time
  • 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/Uses

  • Communications Equipment
  • I/O
  • Memory VDDQ
  • Networking Equipment
  • Point-of-Load Voltage Regulators
  • Servers and Storage Equipment
  • μP Chipsets
Part Number VIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
Preset VOUT
(V)
Output Adjust. Method IOUT1
(A)
Switch Type Power Good Signal DC-DC Outputs Oper. Freq.
(kHz)
Design Tools Package/Pins Budgetary
Price
min max min max max See Notes
MAX20745 NEW! 4.5 16 0.6 5.5
0.65
0.9
1
Preset
Resistor
10 Internal Yes 1
400
600
800
EE-Sim
FCQFN/15
$3.10 @1k
See All Step-Down Switching Regulators (322)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


MAX20745EVKIT: Evaluation Kit for the MAX20745

Quality and Environmental Data

Request Reliability Report for: MAX20745 
Lead-Free Package Tin (Sn) Whisker Reports

Tools & Models

Design & Simulate MAX20745

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