参数资料
| 型号： | ISL78214ARZ |
| 厂商： | Intersil |
| 文件页数： | 1/15页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 4A 16QFN |
| 标准包装： | 75 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.8 V ~ 5.5 V |
| 输入电压： | 2.8 V ~ 5.5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1MHz |
| 电流 - 输出： | 4A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-VQFN 裸露焊盘 |
| 包装： | 管件 |
| 供应商设备封装： | 16-QFN（4x4） |
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)
? AECQ100 Tested
Applications
? Automotive Power
? DC/DC POL Modules
? μC/μP, FPGA and DSP Power
? 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.
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| ISL78214ARZ-T | 功能描述:IC REG BUCK SYNC ADJ 4A 16QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:两者兼有 输出数:1 输出电压:5V，1 V ~ 10 V 输入电压:3.5 V ~ 28 V PWM 型:电流模式 频率 - 开关:220kHz ~ 1MHz 电流 - 输出:600mA 同步整流器:无 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:16-SSOP（0.154"，3.90mm 宽） 包装:带卷 (TR) 供应商设备封装:16-QSOP |
| ISL78214ARZ-TR5303 | 制造商:Intersil Corporation 功能描述:- Tape and Reel |
| ISL78215 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Improved Industry Standard Single-Ended Current Mode PWM Controller |
| ISL78215AUZ | 功能描述:IC REG CTRLR BST FLYBK ISO 8MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:275kHz 占空比:50% 电源电压:18 V ~ 110 V 降压:无 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:是 工作温度:-40°C ~ 85°C 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 包装:带卷 (TR) |
| ISL78215AUZ-T | 功能描述:IC REG CTRLR BST FLYBK ISO 8MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:275kHz 占空比:50% 电源电压:18 V ~ 110 V 降压:无 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:是 工作温度:-40°C ~ 85°C 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 包装:带卷 (TR) |
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