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| 型号： | ISL6411 |
| 厂商： | Intersil Corporation |
| 英文描述： | Triple Output, Low-Noise LDO Regulator with Integrated Reset Circuit |
| 中文描述： | 三路输出，低噪声LDO稳压器集成复位电路 |
| 文件页数： | 1/4页 |
| 文件大小： | 256K |
| 代理商： | ISL6411 |
1
FN9081.2
ISL6411
Triple Output, Low-Noise LDO Regulator
with Integrated Reset Circuit
The ISL6411 is an ultra low noise triple output LDO regulator
with microprocessor reset circuit and is optimized for
powering wireless chip sets. The IC accepts an input voltage
range of 3.0V to 3.6V and provides three regulated output
voltages: 1.8V (LDO1), 2.84V (LDO2), and another ultra
clean 2.84V (LDO3). On chip logic provides sequencing
between LDO1 and LDO2 for BBP/MAC and I/O supply
voltage outputs. LDO3 features ultra low noise that does not
typically exceed 30V RMS to aid VCO stability. High
integration and the thin Quad Flat No-lead (QFN) package
makes ISL6411 an ideal choice to power many of today’s
small form factor industry standard wireless cards, such as
PCMCIA, mini-PCI and Cardbus-32.
The ISL6411 uses an internal PMOS transistor as the pass
device. The SHDN pin controls LDO1 and LDO2 outputs
whereas SHDN3 controls LDO3 output. Internal voltage
sequencing insures that LDO1 output (1.8V supply) is
always stabilized before LDO2 is turned on. When powering
down, power to the LDO2 is removed before the LDO1
output goes off. The ISL6411 also integrates RESET
function, which eliminates the need for additional RESET IC
required in WLAN applications. The IC asserts a RESET
signal whenever the VIN supply voltage drops below a
preset threshold, keeping it asserted for at least 25ms after
Vin has risen above the reset threshold. An output fault
detection circuit indicates loss of regulation on any of the
three outputs. Other features include an over current
protection, thermal shutdown and reverse battery protection.
Features
Small DC-DC Converter Size
- Three LDOs and RESET Circuitry in a Low-Profile
4x4mm QFN Package
High Output Current
- LDO1, 1.8V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mA
- LDO2, 2.84V. . . . . . . . . . . . . . . . . . . . . . . . . . . . 300mA
- LDO3, 2.84V. . . . . . . . . . . . . . . . . . . . . . . . . . . . 200mA
Ultra-Low Dropout Voltage
- LDO2, 2.84V. . . . . . . . . . . . . . . 125mV (typ.) at 300mA
- LDO3, 2.84V. . . . . . . . . . . . . . . 100mV (typ.) at 200mA
Ultra-Low Output Voltage Noise
-<30
VRMS (typ.) for LDO3 (VCO Supply)
Stable with Smaller Ceramic Output Capacitors
Voltage Sequencing for BBP/MAC and Analog Supplies
Extensive Protection and Monitoring Features
- Over current protection
- Short circuit protection
- Thermal shutdown
- Reverse battery protection
- FAULT indicator
Logic-Controlled Dual Shutdown Pins
Integrated Microprocessor Reset Circuit
- Programmable Reset Delay
- Complimentary Reset Outputs
Proven Reference Design for Total WLAN System
Solution
QFN Package Option
- Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat
No Leads - Product Outline
- Near Chip-Scale Package Footprint Improves PCB
Efficiency and Is Thinner in Profile
- Lead-Free Package Option Available ("Z" suffix)
Applications
PRISM 3, PRISM GT, and PRISM WWR Chipsets
WLAN Cards
- PCMCIA, Cardbus32, MiniPCI Cards
- Compact Flash Cards
Hand-Held Instruments
Ordering Information
PART NUMBER
TEMP. RANGE
(oC)
PACKAGE
PKG.
DWG. #
ISL6411IR
-40 to +85
16 Ld QFN
L16.4x4
ISL6411IRZ (Note)
-40 to +85
16 Ld QFN
L16.4x4
NOTE: " Z " Suffix: Intersil Lead Free products employ special lead
free material sets; molding compounds/die attach materials and
100% matte tin plate termination finish, which is compatible with both
SnPb and lead free soldering operations. Intersil Lead Free products
are MSL classified at lead free peak reflow temperatures that meet
or exceed the lead free requirements of IPC/JEDEC J Std-020B.
Tape and Reel available. Add “-T” suffix for tape and reel packing
option (e.g., ISL6411RZ-T for lead free tape and reel).
Data Sheet
November 2003
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
| Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2003. All Rights Reserved. PRISM 3 and PRISM GT are trademarks of GlobespanVirata, Inc.
All other trademarks mentioned are the property of their respective owners.
NOT
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL6411EVAL1 | 功能描述:EVALUATION BOARD ISL6411 RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 传感器类型:CMOS 成像，彩色（RGB） 传感范围:WVGA 接口:I²C 灵敏度:60 fps 电源电压:5.7 V ~ 6.3 V 嵌入式:否 已供物品:成像器板 已用 IC / 零件:KAC-00401 相关产品:4H2099-ND - SENSOR IMAGE WVGA COLOR 48-PQFP4H2094-ND - SENSOR IMAGE WVGA MONO 48-PQFP |
| ISL6411IR-TK | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| ISL6412IR | 功能描述:IC REG LDO 1.8V/2.8V/2.8V 16-QFN RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:3,000 系列:- 稳压器拓扑结构:正，可调式 输出电压:1.2 V ~ 5.5 V 输入电压:1.7 V ~ 5.5 V 电压 - 压降（标准）:0.075V @ 400mA 稳压器数量:1 电流 - 输出:400mA（最小值） 电流 - 限制（最小）:400mA 工作温度:-55°C ~ 125°C 安装类型:表面贴装 封装/外壳:SC-74A，SOT-753 供应商设备封装:SOT-23-5 包装:带卷 (TR) 其它名称:296-20789-2V62/06626-01XE |
| ISL6412IR-T5K | 功能描述:IC REG LDO 1.8V/2.8V/2.8V 16-QFN RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:3,000 系列:- 稳压器拓扑结构:正，可调式 输出电压:1.2 V ~ 5.5 V 输入电压:1.7 V ~ 5.5 V 电压 - 压降（标准）:0.075V @ 400mA 稳压器数量:1 电流 - 输出:400mA（最小值） 电流 - 限制（最小）:400mA 工作温度:-55°C ~ 125°C 安装类型:表面贴装 封装/外壳:SC-74A，SOT-753 供应商设备封装:SOT-23-5 包装:带卷 (TR) 其它名称:296-20789-2V62/06626-01XE |
| ISL6412IR-TK | 功能描述:IC REG LDO 1.8V/2.8V/2.8V 16-QFN RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:3,000 系列:- 稳压器拓扑结构:正，可调式 输出电压:1.2 V ~ 5.5 V 输入电压:1.7 V ~ 5.5 V 电压 - 压降（标准）:0.075V @ 400mA 稳压器数量:1 电流 - 输出:400mA（最小值） 电流 - 限制（最小）:400mA 工作温度:-55°C ~ 125°C 安装类型:表面贴装 封装/外壳:SC-74A，SOT-753 供应商设备封装:SOT-23-5 包装:带卷 (TR) 其它名称:296-20789-2V62/06626-01XE |
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