- 您现在的位置：买卖IC网 > PDF目录17644 > ISL78228ARZ-T (Intersil)IC REG BUCK SYNC ADJ DL 10-DFN PDF资料下载
参数资料
| 型号： | ISL78228ARZ-T |
| 厂商： | Intersil |
| 文件页数： | 1/18页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ DL 10-DFN |
| 标准包装： | 6,000 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 2 |
| 输出电压： | 0.6 V ~ 5.5 V |
| 输入电压： | 2.75 V ~ 5.5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 2.25MHz |
| 电流 - 输出： | 800mA |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | * |
| 封装/外壳： | * |
| 包装： | * |
| 供应商设备封装： | * |
Dual 800mA Low Quiescent Current 2.25MHz High
Efficiency Synchronous Buck Regulator
ISL78228
The ISL78228 is a high efficiency, dual synchronous step-down
DC/DC regulator that can deliver up to 800mA continuous
output current per channel. The supply voltage range of 2.75V
to 5.5V allows for the use of a 3.3V or 5V input. The current
mode control architecture enables very low duty cycle
operation at high frequency with fast transient response and
excellent loop stability. The ISL78228 operates above the AM
radio band as well as the 2.25MHz switching frequency,
allowing for the use of small, low cost inductors and
capacitors. Each channel is optimized for generating an output
voltage as low as 0.6V.
The ISL78228 has a user configurable mode of
operation-forced PWM mode and PFM/PWM mode. The forced
PWM mode operation reduces noise and RF interference while
the PFM mode operation provides high efficiency by reducing
switching losses at light loads. In PFM mode of operation, both
channels draw a total quiescent current of only 30μA, hence
enabling high light load efficiency in order to maximize battery
life.
The ISL78228 offers a 1ms Power-Good (PG) to monitor both
outputs at power-up. When shutdown, ISL78228 discharges
the outputs capacitor. Other features include internal digital
soft-start, enable for power sequence, overcurrent protection,
and thermal shutdown. The ISL78228 is offered in a
3mmx3mm 10 Ld DFN package with 1mm maximum height.
The complete converter occupies less than 1.8cm 2 area.
The ISL78228 is AEC-Q100 rated. The ISL78228 is rated for
the automotive temperature range (-40°C to +105°C).
100
90
Features
? Internal Current Mode Compensation
? 100% Maximum Duty Cycle for Lowest Dropout
? Selectable Forced PWM Mode and PFM Mode
? External Synchronization up to 4MHz
? Start-up with Pre-biased Output
? Soft-Stop Output Discharge During Disabled
? Internal Digital Soft-Start - 2ms
? Power-Good (PG) Output with 1ms Delay
? AEC-Q100 Tested
? Pb-free (RoHS Compliant)
? DC/DC POL Modules
? μC/μP, FPGA and DSP Power
? Rear Camera Systems
? Navigation Systems
? Infotainment Systems
80
70
1.8V OUT -PFM
2.5V OUT -PFM
2.5V OUT -PWM
60
50
1.8V OUT -PWM
VIN = 5V
40
0.0
0.1
0.2
0.3 0.4 0.5
0.6
0.7
0.8
OUTPUT LOAD (A)
FIGURE 1. EFFICIENCY CHARACTERISTICS CURVE
December 4, 2013
FN7849.2
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 2011, 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.
相关PDF资料 |
PDF描述 |
|---|---|
| ISL6328IRZ-T | IC CTRLR PWM SYNC BUCK DL 48QFN |
| LB16WGW01 | SWITCH PUSHBUTTON SPDT 3A 125V |
| ISL6328CRZ-T | IC CTRLR PWM SYNC BUCK DL 48QFN |
| LB16WKW01 | SWITCH PUSHBUTTON SPDT 3A 125V |
| X9315WMIZ-2.7T1R5419 | IC DGTL POT 32POS 10K 8MSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL78233ARZ | 制造商:Intersil Corporation 功能描述:IC REG BUCK SYNC ADJ 3A 16QFN |
| ISL78233ARZ-T | 制造商:Intersil Corporation 功能描述:ISL78233ARZ AUTOMOTIVE 4A COMPACT SYNCHRONOUS BUCK REGULATOR - Tape and Reel |
| ISL78301 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:40V, Low Quiescent Current, 150mA Linear Regulator for Automotive Applications |
| ISL78301FVEAZ | 功能描述:IC REG LDO 3.3V .15A 14HTSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 稳压器拓扑结构:正，固定式或可调式 输出电压:3.3V，2.5 V ~ 11 V 输入电压:6.5 V ~ 45 V 电压 - 压降（标准）:0.9V @ 400mA 稳压器数量:1 电流 - 输出:400mA（最小） 电流 - 限制（最小）:- 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:16-WQFN 裸露焊盘 供应商设备封装:16-TQFN-EP（5x5） 包装:带卷 (TR) |
| ISL78301FVEAZ-T | 功能描述:IC REG LDO 3.3V .15A 14HTSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:2,000 系列:- 稳压器拓扑结构:正，可调式 输出电压:1.2 V ~ 5 V 输入电压:2.5 V ~ 7 V 电压 - 压降（标准）:0.24V @ 800mA 稳压器数量:1 电流 - 输出:800mA 电流 - 限制（最小）:1.2A 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:TO-261-5，TO-261AB 供应商设备封装:SOT-223-5 包装:带卷 (TR) 其它名称:*LP3964EMPX-ADJLP3964EMPX-ADJLP3964EMPX-ADJ-NDLP3964EMPX-ADJ/NOPBTR |
发布紧急采购，3分钟左右您将得到回复。