MAX15026CETD+G1D

Series:	--
Part Status:	Obsolete
Output Type:	Transistor Driver
Function:	Step-Down
Output Configuration:	Positive
Topology:	Buck
Number of Outputs:	1
Output Phases:	1
Voltage - Supply (Vcc/Vdd):	4.5 V ~ 28 V
Frequency - Switching:	200kHz ~ 2MHz
Duty Cycle (Max):	88%
Synchronous Rectifier:	Yes
Clock Sync:	No
Serial Interfaces:	--
Control Features:	Current Limit, Enable, Frequency Control, Power Good
Operating Temperature:	-40°C ~ 125°C (TJ)

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Introduction

MAX15026CETD+G1D is a highly integrated, low-noise, high performance power management integrated circuit (PMIC) specifically designed for laptop, tablet and other consumer and automotive applications. It features two independent, fixed-frequency DC-DC buck controllers with 3-phase synchronous rectification and programmable frequency modulation, one adjustable output LDO, and one adjustable input LDO. The power IC also comes with LDOs related peripherals, including an integrated over-voltage/under-voltage lockout (UVLO) for two inputs, error amplifiers, integrated power-on reset (POR), internal soft start, and a power good signal. It is a versatile power management solution that provides improved system efficiency with high-frequency, low-noise operation.

Application Field

The MAX15026CETD+G1D supports a wide range of application fields, which include laptops, tablets, LED TV, automotive and medical devices, communications infrastructure, and other consumer applications. In laptops and tablets, it can provide high current output, low ripple and noise, flexible power sequencing, improve system efficiency, and meet stringent system requirements. In LED TV, it can provide reliable power delivery and uniform current across multiple strings, improving TV performance and maximizing LED lifetime. In automotive applications, it can deliver a stable voltage output and prevents backfeed, which helps extend battery life and reduce energy loss. In medical devices, the MAX15026CETD+G1D has a low-noise design that enables it to provide both higher accuracy and improved system performance.

Working Principle

The MAX15026CETD+G1D is based on a wide input range and wide output range. It is designed to support multiple synchronous buck controllers and multiple adjustable LDO outputs. The power IC can support one to three buck controllers, and each buck controller is built with a high-precision, fixed frequency, current-mode, PWM controller and an independent synchronous rectification 3-phase with an internal bootstrap circuit. The PWM controller provides accurate (±1%) internal voltage slew rate limit, which increases system-level efficiency and prevents excessive current consumption during start-up. The internal bootstrap circuitry eliminates the need for external BUCK boost inductor, reducing system cost and complexity. Its adjustable voltage LDO is able to output up to 200mA, providing high current and low noise support for different system performance.The MAX15026CETD+G1D also features an integrated over-voltage/under-voltage lockout (UVLO) for two inputs, error amplifiers, integrated power-on reset (POR), internal soft start, and a powergood signal. It also has temperature, load current, and current-sense monitor protection which eliminates the need for external protection circuits.

Conclusion

The MAX15026CETD+G1D is an advanced power management integrated circuit that provides improved system efficiency, high-frequency, low-noise operation and flexibility with its dual synchronous buck controllers, adjustable output LDO, and adjustable input LDO. It is a versatile power management solution for laptop, tablet, LED TV, automotive, and medical applications, as it supports a wide input range and wide output range and comes with integrated peripherals such as integrated over-voltage/under-voltage lockout, error amplifiers, integrated power-on reset, internal soft start, and a power good signal. With its temperature, load current, and current-sense monitor protection, it eliminates the need for external protection circuits.

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