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ISL78214ARZ-T7

Description
SWITCHING REGULATOR
CategoryPower/power management    The power supply circuit   
File Size1MB,15 Pages
ManufacturerRenesas Electronics Corporation
Websitehttps://www.renesas.com/
Environmental Compliance
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ISL78214ARZ-T7 Overview

SWITCHING REGULATOR

ISL78214ARZ-T7 Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
MakerRenesas Electronics Corporation
package instruction,
Reach Compliance Codecompliant
ECCN codeEAR99
Analog Integrated Circuits - Other TypesSWITCHING REGULATOR
JESD-609 codee3
Humidity sensitivity level1
Terminal surfaceMatte Tin (Sn) - annealed
4A Low Quiescent Current High Efficiency Synchronous
Buck Regulator
ISL78214
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.
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.
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.
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 ISL78214 is offered in a space saving 4x4 QFN lead free
package with exposed pad lead frames for low thermal.
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.
The ISL78214 is offered in a 16 Ld 4mmx4mm QFN package
with 1mm maximum height. The complete converter occupies
less than 0.4in
2
area.
The ISL78214 is AEC-Q100 rated. The ISL78214 is rated for
the automotive temperature range (-40°C to +105°C).
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
• 2% Output Accuracy Over-Temperature/Load/Line
• 4A Output Current
• 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
• 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)
• AEC-Q100 Tested
Applications
• Automotive Power
• DC/DC POL Modules
• µC/µP, FPGA and DSP Power
Related Literature
• See
AN1366,
“ISL8014AEVAL2Z: 4A Low Quiescent Current
1MHz High Efficiency Synchronous Buck Regulator”
December 4, 2013
FN7551.1
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 2010, 2013. 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.

ISL78214ARZ-T7 Related Products

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Description SWITCHING REGULATOR SWITCHING REGULATOR
Is it Rohs certified? conform to conform to
Maker Renesas Electronics Corporation Renesas Electronics Corporation
Reach Compliance Code compliant compliant
ECCN code EAR99 EAR99
Analog Integrated Circuits - Other Types SWITCHING REGULATOR SWITCHING REGULATOR
JESD-609 code e3 e3
Humidity sensitivity level 1 1
Terminal surface Matte Tin (Sn) - annealed Matte Tin (Sn) - annealed
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