Datasheet > ISL8018EVAL3Z

ISL8018EVAL3Z

更新时间： 2022-02-26 11:19:52

品牌	Logo	应用领域
英特矽尔 - INTERSIL		/
页数	文件大小	规格书
21页	843K
描述
8A Low Quiescent Current High Efficiency Synchronous Buck Regulator

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ISL8018EVAL3Z 数据手册

DATASHEET

8A Low Quiescent Current High Efficiency Synchronous

Buck Regulator

ISL8018

Features

The ISL8018 is a high efficiency, monolithic, synchronous

step-down DC/DC converter that can deliver up to 8A continuous

output current from a 2.7V to 5.5V input supply. The output

• High efficiency synchronous buck regulator with up to 97%

efficiency

• ±10% output voltage margining

• Adjustable current limit

voltage is adjustable from 0.6V to V . With an adjustable current

limit, reverse current protection, prebias start and

over-temperature protection, the ISL8018 offers a highly robust

power solution. It uses current control architecture to deliver fast

transient response and excellent loop stability.

• Start-up with prebiased output

• Internal soft-start - 1ms or adjustable, internal/external

compensation

The ISL8018 integrates a pair of low ON-resistance P-channel

and N-channel internal MOSFETs to maximize efficiency and

minimize external component count. 100% duty-cycle operation

allows less than 250mV dropout at 8A output current. Adjustable

frequency and synchronization allow the ISL8018 to be used in

applications requiring low noise.

• Soft-stop output discharge during disabled

• Adjustable frequency from 500kHz to 4MHz - default at 1MHz

• External synchronization up to 4MHz - master to slave phase

shifting capability

• Peak current limiting, hiccup mode short-circuit protection and

over-temperature protection

The ISL8018 can be configured for discontinuous or forced

continuous operation at light load. Forced continuous operation

reduces noise and RF interference while discontinuous mode

provides high efficiency by reducing switching losses at light loads.

Applications

• DC/DC POL modules

The ISL8018 is offered in a space saving 20 Ld 3x4 QFN lead free

package with exposed pad lead frames for excellent thermal

performance. The complete converter occupies less than

• µC/µP, FPGA and DSP power

• Plug-in DC/DC modules for routers and switchers

• Portable instruments

96.8mm area.

• Test and measurement systems

• Li-ion battery powered devices

See Ordering Information on page 2 for more detail.

Related Literature

• UG052 “ISL8018DEMO1Z Demonstration Board User Guide”

• UG053 “ISL8018EVAL3Z Evaluation Board User Guide”

100

3.3V

OUT

PFM

3.3V

OUT

PWM

(A)

OUT

FIGURE 1. EFFICIENCY T = +25°C V = 5V

September 30, 2015

FN7889.0

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.

All other trademarks mentioned are the property of their respective owners.

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与ISL8018EVAL3Z相关器件

型号	品牌	描述	获取价格	数据表
ISL8018IRAJZ	INTERSIL	8A Low Quiescent Current High Efficiency Synchronous Buck Regulator	获取价格
ISL8018IRAJZ	RENESAS	8A Low Quiescent Current High Efficiency Synchronous Buck Regulator	获取价格
ISL8022	INTERSIL	Dual 2A/1.7A Low Quiescent Current 2.25MHz High Efficiency Synchronous	获取价格
ISL8022	RENESAS	Dual 2A/1.7A Low Quiescent Current 2.25MHz High Efficiency Synchronous Buck Regulator	获取价格
ISL8022EVAL1Z	INTERSIL	Dual 2A/1.7A Low Quiescent Current 2.25MHz High Efficiency Synchronous	获取价格
ISL8022IRZ	INTERSIL	Dual 2A/1.7A Low Quiescent Current 2.25MHz High Efficiency Synchronous	获取价格

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