Datasheet > ISL8012_10

ISL8012_10

更新时间： 2024-11-09 11:12:47

品牌	Logo	应用领域
英特矽尔 - INTERSIL		稳压器
页数	文件大小	规格书
16页	1424K
描述
2A Low Quiescent Current 1MHz High Efficiency Synchronous Buck Regulator

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ISL8012_10 数据手册

2A Low Quiescent Current 1MHz High Efficiency

Synchronous Buck Regulator

ISL8012

Features

• High Efficiency Synchronous Buck Regulator with up

to 95% Efficiency

The ISL8012 is a high efficiency, monolithic, synchronous

step-down DC/DC converter that can deliver up to 2A

continuous output current from a 2.7V to 5.5V input

supply. It uses a current control architecture to deliver

very low duty cycle operation at high frequency with fast

transient response and excellent loop stability.

• Power-Good (PG) Output with a 1ms Delay

• 2.7V to 5.5V Supply Voltage

• 3% Output Accuracy Over-Temperature/Load/Line

• 2A Guaranteed Output Current

The ISL8012 integrates a pair of low ON-resistance

P-Channel and N-Channel internal MOSFETs to maximize

efficiency and minimize external component count. The

100% duty-cycle operation allows less than 240mV

dropout voltage at 2A output current. High 1MHz pulse

width modulation (PWM) switching frequency allows the

use of small external components.

• Start-up with Pre-Biased Output

• Internal Soft-Start - 1ms

• Soft-Stop Output Discharge During Disabled

• 40µA Quiescent Supply Current in PFM Mode

• Selectable Forced PWM Mode and PFM Mode

• Less than 1µA Logic Controlled Shutdown Current

• 100% Maximum Duty Cycle

The ISL8012 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.

• Internal Current Mode Compensation

• Peak Current Limiting and Hiccup Mode Short Circuit

Protection

Fault protection is provided by internal current limiting

during short circuit and overcurrent conditions, an output

overvoltage comparator and over-temperature monitor

circuit. A power-good output voltage monitor indicates

when the output is in regulation.

• Over-Temperature Protection

• Small 10 Ld 3mmx3mm DFN

• Pb-Free (RoHS Compliant)

The ISL8012 offers a 1ms Power-good (PG) timer at

power-up. When shutdown, ISL8012 discharges the

output capacitor. Other features include internal

soft-start, internal compensation, overcurrent protection,

and thermal shutdown.

Applications*(see page 15)

• DC/DC POL Modules

• µC/µP, FPGA and DSP Power

• Plug-in DC/DC Modules for Routers and Switchers

• Portable Instruments

The ISL8012 is offered in a space saving 3mmx3mm

10 Ld DFN package lead free package with exposed pad

lead frames for low thermal. The complete converter

• Test and Measurement Systems

• Li-ion Battery Powered Devices

• Small Form Factor (SFP) Modules

• Bar Code Readers

occupies less than 0.35in area.

Related Literature*(see page 15)

• See AN1360 for “ISL8012EVAL1Z: 2A Synchronous

Buck Regulator with Integrated MOSFETs”

FN6616.1

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

1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.

March 17, 2010

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

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与ISL8012_10相关器件

型号	品牌	获取价格	描述	数据表
ISL80121-5	INTERSIL	获取价格	1A Ultra Low Dropout Linear Regulator
ISL80121-5	RENESAS	获取价格	1A Ultra Low Dropout Linear Regulator with Programmable Current Limiting
ISL80121-5_11	INTERSIL	获取价格	1A Ultra Low Dropout Linear Regulator
ISL80121-5_1109	INTERSIL	获取价格	1A Ultra Low Dropout Linear Regulator with Programmable Current Limiting
ISL80121IR50Z	INTERSIL	获取价格	1A Ultra Low Dropout Linear Regulator with Programmable Current Limiting
ISL8012IRZ	INTERSIL	获取价格	2A Low Quiescent Current 1MHz High Efficiency Synchronous Buck Regulator
ISL8012IRZ-T13	RENESAS	获取价格	Switching Regulator
ISL8013	INTERSIL	获取价格	3A Low Quiescent Current 1MHz High Efficiency Synchronous Buck Regulator
ISL8013	RENESAS	获取价格	3A Low Quiescent Current 1MHz High Efficiency Synchronous Buck Regulator
ISL80136	INTERSIL	获取价格	40V, Low Quiescent Current, 50mA Linear Regulator

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