Datasheet > MAX25322

MAX25322

更新时间： 2024-04-09 19:02:48

品牌	Logo	应用领域
亚德诺 - ADI		转换器
页数	文件大小	规格书
2页	338K
描述
双通道、6A、ASIL-C低压降压转换器

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MAX25322 数据手册

Data Sheet

MAX25322

Dual, 6A, ASIL C Low-Voltage Buck Converter

General Description

Beneﬁts and Features

The MAX25322 is an ASIL C-compliant, high-efficiency, dual

switching regulator that delivers up to 6A (peak) load current

per output from 0.5V to 1.5875V in 12.5mV steps and 1.6V to

3.8V in 50mV steps. The IC operates from 3V to 5.5V, making

it ideal for on-board point-of-load and post regulation applica-

tions. Total output error is less than ±1.0% over load, line, and

temperature.

● High Feature Set in Ultra-Small Footprint

• High-Eﬃciency DC-DC Converter

• Two Independent Outputs, up to 6A per Output

• 3.0V to 5.5V Operating Supply Voltage

• Factory-Preset Output Voltage

• 2.1MHz/3.2MHz Options

• Individual Enable Input

• Individual RESET Outputs

The MAX25322 features fixed-frequency PWM mode oper-

ation with a switching frequency of 2.1MHz or 3.2MHz. The

high-frequency operation allows for an all-ceramic capacitor

design with small external components.

• Spread-Spectrum Option

• Peak Current-Mode Architecture

• 3mm x 3.5mm FCQFN

● ASIL C Compliant

The low-resistance on-chip switches ensure high efficiency at

heavy loads while minimizing critical inductances, making the

layout a much simpler task with respect to discrete solutions.

Following a simple layout and footprint ensure first-pass suc-

cess in new designs.

• Factory-Programmable OV/UV with ±1% Accuracy

• Redundant Reference

• BIST Diagnostics

● Precision

• ±1% Output-Voltage Accuracy

• Excellent Load-Transient Performance

• PWM and SKIP Mode Operation

• MAXQ Power Architecture

The device features the MAXQ power architecture, which

provides precision transient performance and phase margin.

This allows obtaining the maximum power, performance, and

precision from the converter over a very wide range of con-

figurations.

● High Efficiency

• Up to 96% Eﬃciency 5V to 3.3V

• Up to 90% Eﬃciency 5V to 1V

The MAX25322 provides independent enable input for each

channel. The output voltage is preset at the factory to allow

customers to achieve ±1% output-voltage accuracy without

using expensive 0.1% resistors. The device offers factory-pro-

grammable soft-start and RESET times.

● -40°C to +125°C Operating Temperature Range

● AEC-Q100 Qualified

Applications

● Secondary Regulator for SoC/MCU Supply

The device includes overtemperature shutdown and over-

current limiting. It is designed to operate over the -40°C to

+125°C ambient temperature range.

Simpliﬁed Block Diagram

ꢀꢁꢂꢃ5ꢄꢃꢃ

Visit Web Support to complete the nondisclosure agreement (NDA) required to receive additional product information.

Rev. 6

Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices

DOCUMENT FEEDBACK

for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Speciﬁcations subject to change

without notice. No license is granted by implicationor otherwise under any patent or patent rights of Analog Devices. Trademarks andregistered

trademarks are the property of their respective owners.

TECHNICAL SUPPORT

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