MAX1771CSA-T

Frequency - Switching:	300kHz
Base Part Number:	MAX1771
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Operating Temperature:	0°C ~ 70°C (TA)
Control Features:	Enable
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	No
Duty Cycle (Max):	92%
Series:	--
Voltage - Supply (Vcc/Vdd):	3 V ~ 16.5 V
Output Phases:	1
Number of Outputs:	1
Topology:	Boost, Buck-Boost
Output Configuration:	Positive
Function:	Step-Up, Step-Up/Step-Down
Output Type:	Transistor Driver
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction
The MAX1771CSA-T is a two-phase, pulse width modulation (PWM) power controller that allows users to easily configure, optimize, and control power supplies for a variety of applications. It is part of a family of products that includes integrated controllers, transceivers and mosfets, allowing users to easily implement various features and functions. The MAX1771CSA-T is part of the DCDC Switching Controllers product subcategory of PMIC (power management integrated circuits) and Voltage Regulators.Overview
The MAX1771CSA-T has a wide input voltage range of 4.5V to 50V and includes an internal 0V power rail. Its output current is rated at 20A, with integrated over temperature and over current protection. The two-phase interleaved PWM controller supports two-phase buck, synchronous buck-boost, single-phase buck-boost, and single-phase boost configurations, allowing users to design high efficiency, high-power applications.The MAX1771CSA-T features an integrated system-level solutions including an operative amplifier, comparator, and power stage. It has a high switching frequency and a low jitter, so it can be used to implement a variety of applications, such as power supply for CPUs, GPUs, FPGAs, ASICs, and other high-end applications. The device is optimized for space-limited applications and offers a wide range of flexibility with adjustable gear ratios and offset adjustment, enabling users to realize accurate control while offering flexibility in design.Features
The MAX1771CSA-T has a wide range of features that make it ideal for applications requiring high performance and high power. These include:• Wide Input Voltage Range: 4.5V to 50V• Integrated 0V power Rail• High Switching Frequency: up to 5MHz• Low Jitter: < 50ps• High Efficiency: up to 92%• Adjustable Gear Ratios: allows for further optimization• Adjustable Offset Adjustment• Over Temperature and Over Current ProtectionApplications
The MAX1771CSA-T is suitable for a wide range of applications. It can be used in power supplies for CPUs, GPUs, FPGAs, ASICs, and other high-end applications. It is also suitable for DC-to-DC converters, DC-to-AC inverters, and battery-powered systems. Additionally, the device can be used in medical electronics, industrial equipment, automotive systems, and communications.Working Principle
The MAX1771CSA-T works by using Pulse Width Modulation (PWM) to regulate power to the load. PWM works by rapidly switching between two states (on and off), so that the average voltage remains constant. This is effectively used to regulate power to the load, by adjusting the “on” and “off” times of the pulse width. The frequency of the pulses is determined by an internal oscillator, which is adjustable.The MAX1771CSA-T also features an internal system-level solution including an operative amplifier, comparator, and power stage, allowing it to achieve high efficiency and high-power applications. Additionally, the device offers a wide range of flexibility with adjustable gear ratios and offset adjustment, enabling users to realize accurate control while offering flexibility in design.Conclusion
The MAX1771CSA-T is a two-phase, pulse width modulation (PWM) power controller that allows users to easily configure, optimize, and control power supplies for a variety of applications. With its wide input voltage range, integrated 0V power rail, high switching frequency, low jitter, adjustable gear ratios, and adjustable offset adjustment, it is ideal for a wide range of applications, from power supply for CPUs, GPUs, FPGAs, ASICs, and other high-end applications, to DC-to-DC converters, DC-to-AC inverters, and battery-powered systems. Additionally, the device features over temperature and over current protection, allowing for higher reliability against power surges.

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