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ISL8014A PDF Datasheet ( 特性, スペック, ピン接続図 )

部品番号 ISL8014A
部品説明 4A Low Quiescent Current 1MHz High Efficiency Synchronous Buck Regulator
メーカ Intersil Corporation
ロゴ Intersil Corporation ロゴ 



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ISL8014A Datasheet, ISL8014A PDF,ピン配置, 機能
DATASHEET
4A Low Quiescent Current 1MHz High Efficiency
Synchronous Buck Regulator
ISL8014A
The ISL8014A 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.
The ISL8014A 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 allows the for use of small external
components and the SYNC input enables multiple ICs to
synchronize out-of-phase to reduce ripple and eliminate beat
frequencies.
The ISL8014A 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.
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.
The ISL8014A is offered in a space saving 4mmx4mm QFN,
lead free package with exposed pad lead frames for low
thermal resistance.
The ISL8014A offers a 1ms power-good (PG) timer at
power-up. When shutdown, ISL8014A discharges the output
capacitor. Other features include internal soft-start, internal
compensation, overcurrent protection, and thermal shutdown.
The ISL8014A is offered in a 16 Ld 4mmx4mm QFN package
with 1mm maximum height. The complete converter occupies
less than 0.4in2 area.
Features
• High efficiency synchronous buck regulator with up to 97%
efficiency
• Power-good (PG) output with a 1ms delay
• 2.8V to 5.5V supply voltage
• 3% output accuracy over-temperature/load/line
• 4A output current
• Pin compatible to ISL8013A
• Start-up with prebiased 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
• 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)
Applications
• DC/DC POL modules
• µC/µP, FPGA and DSP power
• Plug-in DC/DC modules for routers and switchers
• Portable instruments
• Test and measurement systems
• Li-ion battery powered devices
• Small form factor (SFP) modules
• Barcode readers
December 16, 2014
FN7525.2
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas LLC 2009, 2011, 2014. All Rights Reserved
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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4A Low Quiescent Current 1MHz High Efficiency Synchronous Buck Regulator

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ISL8014A

4A Low Quiescent Current 1MHz High Efficiency Synchronous Buck Regulator

Intersil Corporation
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