Datasheet > MAX5098A

MAX5098A

更新时间： 2024-11-04 14:57:31

品牌	Logo	应用领域
亚德诺 - ADI		转换器
页数	文件大小	规格书
29页	1214K
描述
双通道、2.2MHz、汽车buck或boost转换器，具有80V抛负载保护

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中文翻译

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MAX5098A 数据手册

EVALUATION KIT AVAILABLE

MAX5098A

Dual 2.2MHz Buck or Boost Converter

with 80V Load-Dump Protection

General Description

Features

The MAX5098A is

a dual-output, high-switching-

● Wide 4.5V to 5.5V or 5.2V to 19V Input Voltage

frequency DC-DC converter with integrated n-channel

switches that can be used either in high-side or low-

side configuration. Each output can be configured either

as a buck converter or a boost converter. In the buck

configuration, this device delivers up to 2A from

converter 1 and 1A from converter 2. The MAX5098A also

integrates a load-dump protection circuitry that is capable

of handling load-dump transients up to 80V for industrial

applications. The load-dump protection circuit utilizes

an internal charge pump to drive the gate of an external

n-channel MOSFET. When an overvoltage or load-dump

condition occurs, the series protection MOSFET absorbs

the high-voltage transient to prevent damage to lower-

voltage components.

Range (with Up to 80V Load-Dump Protection)

● Dual-Output DC-DC Converter with Integrated Power

MOSFETs

● Each Output Configurable in Buck or Boost Mode

● Adjustable Outputs from 0.8V to 0.85V Buck

Configuration) and from V to 28V (Boost

Configuration)

● I

and I

of 2A and 1A (Respectively) in

OUT1

OUT2

Buck Configuration

● Switching Frequency Programmable from 200kHz to

2.2MHz

● Synchronization Input (SYNC)

The DC-DC converters operate over a wide operating

voltage range from 4.5V to 19V. The MAX5098A operates

180° out-of-phase with an adjustable switching frequency

to minimize external components while allowing the ability

to make trade-offs between the size, efficiency, and cost.

● Clock Output (CKO) for Four-Phase Master-Slave

Operation

● Individual Converter Enable Input and Power-Good

Output

This device utilizes voltage-mode control for stable

operation and external compensation; thus, the loop gain

is tailored to optimize component selection and transient

response. This device can be synchronized to an external

clock fed at the SYNC input. Also, a clock output (CKO)

allows a master-slave connection of two devices with a

four-phase synchronized switching sequence. Additional

features include internal digital soft-start, individual enable

for each DC-DC regulator (EN1 and EN2), open-drain

power-good outputs (PGOOD1 and PGOOD2), and a

shutdown input (ON/OFF).

● Low-I (7µA) Standby Current (ON/OFF)

● Internal Digital Soft-Start and Soft-Stop

● Short-Circuit Protection on Outputs and Maximum

Duty-Cycle Limit

● Overvoltage Protection on Outputs with Auto Restart

● Thermal Shutdown

● Thermally Enhanced 32-Pin TQFN Package

Dissipates Up to 2.7W at +70°C

Ordering Information

Other features of the MAX5098A include overvolt-

age protection, short-circuit (hiccup current limit), and

thermal protection. The MAX5098A is available in

a thermally enhanced, exposed pad, 5mm x 5mm,

32-pin TQFN package and is fully specified over the

-40°C to +125°C temperature range.

PART

TEMP RANGE

PIN-PACKAGE

MAX5098AATJ+

-40°C to +125°C

32 TQFN-EP*

+Denotes a lead(Pb)-free/RoHS-compliant package.

*EP = Exposed pad.

Applications

● Industrial

Pin Configuration appears at end of data sheet.

19-4111; Rev 1; 10/14

12 3 4 5 6 7...29

中文翻译

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与MAX5098A相关器件

型号	品牌	获取价格	描述	数据表
MAX5098AATJ	MAXIM	获取价格	Dual, 2.2MHz, Automotive Buck or Boost Converter with 80V Load-Dump Protection
MAX5098AATJ+	MAXIM	获取价格	Dual Switching Controller, Voltage-mode, 4.3A, 2200kHz Switching Freq-Max, BICMOS, 5 X 5 M
MAX5099	MAXIM	获取价格	Dual, 2.2MHz, Automotive Synchronous Buck Converter with 80V Load-Dump Protection
MAX5099	ADI	获取价格	双通道、2.2MHz、汽车同步整流buck转换器，具有80V抛负载保护
MAX5099ATJ	MAXIM	获取价格	Dual, 2.2MHz, Automotive Synchronous Buck Converter with 80V Load-Dump Protection
MAX5099ATJ+	MAXIM	获取价格	Dual Switching Controller, Voltage-mode, 5A, 2200kHz Switching Freq-Max, BICMOS, 5 X 5 MM,
MAX509ACAP	MAXIM	获取价格	Quad, Serial 8-Bit DACs with Rail-to-Rail Outputs
MAX509ACAP+	MAXIM	获取价格	D/A Converter, 4 Func, Serial Input Loading, 6us Settling Time, PDSO20, SSOP-20
MAX509ACAP+T	MAXIM	获取价格	D/A Converter, 4 Func, Serial Input Loading, 6us Settling Time, PDSO20, SSOP-20
MAX509ACPP	MAXIM	获取价格	Quad, Serial 8-Bit DACs with Rail-to-Rail Outputs

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