Datasheet > MAX17673ATI+

MAX17673ATI+

更新时间： 2023-12-18 00:00:00

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
22页	981K
描述
Switching Regulator,

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技术参数
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MAX17673ATI+ 技术参数

是否Rohs认证：	符合	生命周期：	Active
包装说明：	,	Reach Compliance Code：	compliant
Factory Lead Time：	6 weeks	风险等级：	2.25
可调阈值：	YES	信道数量：	3
最大供电电压 (Vsup)：	60 V	最小供电电压 (Vsup)：	4.5 V
Base Number Matches：	1

MAX17673ATI+ 数据手册

EVALUATION KIT AVAILABLE

Click here for production status of speciﬁc part numbers.

MAX17673

Integrated 4.5V to 60V Synchronous 1.5A HV Buck

and Dual 2.7V to 5.5V, 1A Buck Regulators

General Description

Beneﬁts and Features

MAX17673 power management integrated circuit (PMIC)

integrates a 60V high voltage (HV), high efficiency

synchronous DC-DC buck regulator and two 5.5V high

efficiency synchronous DC-DC buck regulators. All three

regulators offer integrated power MOSFETs.

● Reduces External Components and Total Cost

• Synchronous Operation for High Eﬃciency

• Internal Compensation for a Wide Output Voltage

Range

• All-Ceramic Capacitors,Compact Layout

● Integrates Three DC-DC Regulators

• Wide 4.5V to 60V Input Voltage Range for the HV

Regulator. 2.7V to 5.5V Input Range for LV

Regulators.

The HV regulator operates from a 4.5V to 60V input volt-

age range and the LV regulators operate from a 2.7V to

5.5V input voltage range. The HV regulator supports load

currents up to 1.5A, and can regulate output voltages from

0.9V to 5.5V. The LV regulators support load currents up to

1A, and can regulate output voltages from 0.75V to 4.8V.

• Adjustable 0.9V to 5.5V Output for the HV Regula-

tor and 0.75V up to 4.8V Output for LV Regulators

• Delivers up to 1.5A Load Current for the HV Regu-

lator and 1A Load Current for LV Regulators

• Adjustable Switching Frequency: 250KHz to

800KHz for HV Regulator and 1MHz to 4MHz for

LV Regulators

• Programmable LV / HV Switching Frequency Ratio

(2, 3, 4, 5, 6, 7, 8)

• EN/UVLO for HV buck and EN for LV regulators

MAX17673 offers independent peak current mode con-

trol, hiccup mode overcurrent protection, ENABLE input

and Power OK signal in the three regulators. The switch-

ing frequency is adjustable between 1MHz and 4MHz

in the LV regulators, and the HV regulator can be pro-

grammed to run at a fractional switching frequency of the

LV regulators. The HV regulator offers an adjustable soft-

start function, while the LV regulators present internally

fixed soft-start. Users can choose to operate the device in

either pulse frequency modulation (PFM) or forced pulse

width modulation (PWM) scheme.

● Reduces Power Dissipation

• 550μA in PFM and 10.2mA in PWM Mode

Quiescent Current

• Peak Eﬃciency > 92%

The device is available in a 28-pin, 5mm x 5mm TQFN

package and operates over a -40°C to +125°C tempera-

ture range.

• Auxiliary Bootstrap LDO for Improved Eﬃciency

• PFM Mode for High Light-Load Eﬃciency

• 7.4μA Shutdown Current

● Operates Reliably in Adverse Industrial Environments

• Peak-Current Limit Protection

Applications

● Industrial Control Power Supplies

● FPGA/CPLD Power Supplies

● Distributed Supply Regulation

● Base Station Power Supplies

● High Voltage Single Board Systems

• Hiccup Mode Overload Protection

• Soft-Start Reduces Inrush Current During Startup

(Adjustable for HV Regulator)

• Built-In Output-Voltage Monitoring with POKH,

POKA, and POKB

• Monotonic Startup into Prebiased Load

• Overtemperature Protection

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

Ordering Information appears at end of data sheet.

19-100403; Rev 0; 10/18

12 3 4 5 6 7...22

中文翻译

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与MAX17673ATI+相关器件

型号	品牌	获取价格	描述	数据表
MAX17681	MAXIM	获取价格	4.5V to 42V Input, High-Efficiency
MAX17681	ADI	获取价格	4.5V至42V输入、高效、Iso-Buck DC-DC转换器
MAX17681_18	MAXIM	获取价格	4.5V to 42V Input, High-Efficiency
MAX17681AATB+	MAXIM	获取价格	4.5V to 42V Input, High-Efficiency
MAX17681ATB+	MAXIM	获取价格	4.5V to 42V Input, High-Efficiency
MAX17681ATB+T	MAXIM	获取价格	IC REG BUCK ISO ADJ SYNC 10TDFN
MAX17682	MAXIM	获取价格	4.5V to 42V Input, Ultra-Small
MAX17682	ADI	获取价格	4.5V至42V输入、超小尺寸、高效、Iso-Buck DC-DC转换器
MAX17682ATP+	MAXIM	获取价格	4.5V to 42V Input, Ultra-Small
MAX17686	MAXIM	获取价格	4.5V to 60V Input, High-Efficiency, Iso-Buck DC-DC Converter

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