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参数资料
| 型号： | ISL6526ACR |
| 厂商： | Intersil |
| 文件页数： | 1/15页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM VM 16-QFN |
| 标准包装： | 60 |
| PWM 型： | 电压模式 |
| 输出数： | 1 |
| 频率 - 最大： | 645kHz |
| 占空比： | 100% |
| 电源电压： | 2.97 V ~ 3.63 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | 0°C ~ 70°C |
| 封装/外壳： | 16-VQFN 裸露焊盘 |
| 包装： | 管件 |
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ISL6526, ISL6526A
Data Sheet
November 24, 2008
FN9055.10
Single Synchronous Buck Pulse-Width
Modulation (PWM) Controller
The ISL6526, ISL6526A make simple work out of
implementing a complete control and protection scheme for
a DC/DC stepdown converter. Designed to drive N-Channel
MOSFETs in a synchronous buck topology, the ISL6526,
ISL6526A integrate the control, output adjustment,
monitoring and protection functions into a single package.
The ISL6526, ISL6526A provide simple, single feedback
loop, voltage-mode control with fast transient response. The
output voltage can be precisely regulated to as low as 0.8V,
with a maximum tolerance of ±1.5% over-temperature and
line voltage variations. A fixed frequency oscillator reduces
design complexity, while balancing typical application cost
and efficiency.
The error amplifier features a 15MHz gain-bandwidth
product and 6V/μs slew rate which enables high converter
bandwidth for fast transient performance. The resulting
PWM duty cycles range from 0% to 100%.
Protection from overcurrent conditions is provided by
monitoring the r DS(ON) of the upper MOSFET to inhibit PWM
operation appropriately. This approach simplifies the
implementation and improves efficiency by eliminating the
need for a current sense resistor.
Features
? Operates from 3.3V to 5V Input
? 0.8V to V IN Output Range
- 0.8V Internal Reference
- ±1.5% Over Load, Line Voltage and Temperature
? Drives N-Channel MOSFETs
? Simple Single-Loop Control Design
- Voltage-Mode PWM Control
? Fast Transient Response
- High-Bandwidth Error Amplifier
- Full 0% to 100% Duty Cycle
? Lossless, Programmable Overcurrent Protection
- Uses Upper MOSFET’s r DS(on)
? Converter can Source and Sink Current
? Small Converter Size
- Internal Fixed Frequency Oscillator
- ISL6526: 300kHz
- ISL6526A: 600kHz
? Internal Soft-Start
? 14 Ld SOIC or 16 Ld 5x5 QFN
? QFN Package:
- Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat
No Leads - Package Outline
- Near Chip Scale Package Footprint, which Improves
PCB Efficiency and has a Thinner Profile
? Pb-Free (RoHS Compliant)
Applications
? Power Supplies for Microprocessors
- PCs
- Embedded Controllers
? Subsystem Power Supplies
- PCI/AGP/GTL+ Buses
- ACPI Power Control
- DDR SDRAM Bus Termination Supply
? Cable Modems, Set-Top Boxes, and DSL Modems
? DSP and Core Communications Processor Supplies
? Memory Supplies
? Personal Computer Peripherals
? Industrial Power Supplies
? 3.3V-Input DC/DC Regulators
? Low-Voltage Distributed Power Supplies
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright ? Intersil Americas Inc. 2001-2005, 2007, 2008. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL6526ACR-T | 功能描述:IC REG CTRLR BUCK PWM VM 16-QFN RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,000 系列:- PWM 型:电压模式 输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘 包装:带卷 (TR) |
| ISL6526AEVAL1 | 功能描述:EVALUATION BOARD 1 ISL6526A RoHS:否 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:True Shutdown™ 主要目的:DC/DC，步升 输出及类型:1，非隔离 功率 - 输出:- 输出电压:- 电流 - 输出:1A 输入电压:2.5 V ~ 5.5 V 稳压器拓扑结构:升压 频率 - 开关:3MHz 板类型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
| ISL6526AEVAL2 | 功能描述:EVALUATION BOARD 2 ISL6526A RoHS:否 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:True Shutdown™ 主要目的:DC/DC，步升 输出及类型:1，非隔离 功率 - 输出:- 输出电压:- 电流 - 输出:1A 输入电压:2.5 V ~ 5.5 V 稳压器拓扑结构:升压 频率 - 开关:3MHz 板类型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
| ISL6526AIB | 功能描述:IC REG CTRLR BUCK PWM VM 14-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,000 系列:- PWM 型:电压模式 输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘 包装:带卷 (TR) |
| ISL6526AIB-T | 功能描述:IC REG CTRLR BUCK PWM VM 14-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,000 系列:- PWM 型:电压模式 输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘 包装:带卷 (TR) |
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