Datasheet > ISL78214

ISL78214

更新时间： 2024-11-25 05:39:43

品牌	Logo	应用领域
英特矽尔 - INTERSIL		稳压器
页数	文件大小	规格书
15页	1410K
描述
4A Low Quiescent Current High Efficiency Synchronous Buck Regulator

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ISL78214 数据手册

4A Low Quiescent Current High Efficiency

Synchronous Buck Regulator

ISL78214

Features

• High Efficiency Synchronous Buck Regulator with up

to 97% Efficiency

The ISL78214 is a high efficiency, monolithic,

synchronous step-down DC/DC converter that can

deliver up to 4A continuous output current from a 2.8V 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

• 2.8V to 5.5V Supply Voltage

• 2% Output Accuracy Over-Temperature/Load/Line

• 4A Output Current

The ISL78214 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 400mV

dropout voltage at 4A output current. High 1MHz

pulse-width modulation (PWM) switching frequency, that

can be synchronization up to 4MHz with an external

clock, allows the use of small external components and

SYNC input enables multiple ICs to synchronize out of

phase to reduce ripple and eliminate beat frequencies.

• Pin Compatible to ISL78213

• Start-up with Pre-Biased Output

• Internal Soft-Start - 1ms

• Soft-Stop Output Discharge During Disabled

• 35µA Quiescent Supply Current in PFM Mode

• Selectable Forced PWM Mode and PFM Mode

• External Synchronization up to 4MHz

• Less than 1µA Logic Controlled Shutdown Current

• 100% Maximum Duty Cycle

The ISL78214 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

• Over-Temperature Protection

• Small 16 Ld 4mmx4mm QFN

• Pb-Free (RoHS Compliant)

• TS16949 Compliant

Fault protection is provided by internal hiccup mode

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.

• AECQ100 Tested

Applications*(see page 14)

• Automotive Power

The ISL78214 is offered in a space saving 4x4 QFN lead

free package with exposed pad lead frames for low

thermal.

• DC/DC POL Modules

• µC/µP, FPGA and DSP Power

The ISL78214 offers a 1ms Power-Good (PG) timer at

power-up. When shutdown, ISL78214 discharges the

output capacitor. Other features include internal

soft-start, internal compensation, overcurrent protection,

and thermal shutdown.

Related Literature*(see page 14)

• See AN1366, “ISL8014AEVAL2Z: 4A Low Quiescent

Current 1MHz High Efficiency Synchronous Buck

Regulator”

The ISL78214 is offered in a 16 Ld 4mmx4mm QFN

package with 1mm maximum height. The complete

converter occupies less than 0.4in area.

The ISL78214 is both AEC-Q100-rated and fully

TS16949-compliant. The ISL78214 is rated for the

automotive temperature range (-40°C to +105°C).

March 8, 2010

FN7551.0

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.

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

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与ISL78214相关器件

型号	品牌	获取价格	描述	数据表
ISL78214ARZ	INTERSIL	获取价格	4A Low Quiescent Current High Efficiency Synchronous Buck Regulator
ISL78214ARZ-T13	RENESAS	获取价格	SWITCHING REGULATOR
ISL78215	INTERSIL	获取价格	Improved Industry Standard Single-Ended Current Mode PWM Controller
ISL78215	RENESAS	获取价格	Improved Industry Standard Single-Ended Current Mode PWM Controller
ISL78215AUZ	INTERSIL	获取价格	Improved Industry Standard Single-Ended Current Mode PWM Controller
ISL78215AUZ	RENESAS	获取价格	Improved Industry Standard Single-Ended Current Mode PWM Controller; MSOP8; Temp Range: -4
ISL78215AUZ-T	INTERSIL	获取价格	Improved Industry Standard Single-Ended Current Mode PWM Controller
ISL78215AUZ-T	RENESAS	获取价格	Improved Industry Standard Single-Ended Current Mode PWM Controller; MSOP8; Temp Range: -4
ISL78215AUZ-T7A	RENESAS	获取价格	Improved Industry Standard Single-Ended Current Mode PWM Controller
ISL78219	RENESAS	获取价格	Automotive Boost Regulator with 4A Integrated Switch

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