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| 型号： | ISL6426CBZ |
| 厂商： | INTERSIL CORP |
| 元件分类： | 稳压器 |
| 英文描述： | Single Synchronous Buck Pulse-Width Modulation (PWM) Controller |
| 中文描述： | SWITCHING CONTROLLER, 770 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | LEAD FREE, PLASTIC, MS-012-AC, SOIC-16 |
| 文件页数： | 1/18页 |
| 文件大小： | 541K |
| 代理商： | ISL6426CBZ |
1
FN9073.6
ISL6406, ISL6426
Single Synchronous Buck Pulse-Width
Modulation (PWM) Controller
The ISL6406, ISL6426 is an adjustable frequency,
synchronous buck switching regulator optimized for
generating lower voltages for the distributed DC-DC
architectures. The ISL6406 offers an adjustable output
voltage, while the ISL6426 provides a fixed 1.8V output.
Designed to drive N-Channel MOSFETs in synchronous
buck topology, the ISL6406, ISL6426 integrates the control,
output adjustment and protection functions into a single
package.
The ISL6406, ISL6426 provides simple, single feedback
loop, voltage-mode control with fast transient response. The
output voltage can be precisely regulated to as low as 0.8V.
The error amplifier features a 15MHz gain-bandwidth
product and 6V/
s slew rate which enables high converter
bandwidth for fast transient performance.
Protection from overcurrent conditions is provided by
monitoring the rDS(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.
The wide programmable switching frequency range of
100kHz to 700kHz allows the use of small surface mount
inductors and capacitors. The device also provides external
frequency synchronization making it an ideal choice for
DC-DC converter applications.
Features
Operates from 3.3V/5V Input
0.8V to VIN Output Range
- 0.8V Internal Reference
- ±1.5% Reference Accuracy
Simple Single-Loop Control Design
- Voltage-Mode PWM Control
Fast Transient Response
- High-Bandwidth Error Amplifier
Lossless, Programmable Overcurrent Protection
- Uses Upper MOSFET’s rDS(on)
Programmable Switching Frequency 100kHz–700kHz
External Frequency Synchronization
Two Device Options Available
- ISL6406 . . . . . . . . . . . . . . . . Adjustable Output Voltage
- ISL6426 . . . . . . . . . . . . . . . . . . . . . . Fixed 1.8V Output
Internal Soft-Start
QFN Package Option
- QFN Compliant to JEDEC PUB95 MO-220 QFN - Quad
Flat No Leads - Product Outline
- QFN Near Chip Scale Package Footprint; Improves
PCB Efficiency, Thinner in Profile
Pb-Free Packaging Available (RoHS Compliant)
- Designated with “Z” Suffix (Refer to Note)
Applications
3V/5V DC-DC Converter Modules
Distributed DC-DC 3.3V, 2.5V and 1.8V Power
Architectures for DSP, Logic, and Memory
Power Supplies for Microprocessors
-PCs
- Embedded Controllers
Memory Supplies
Personal Computer Peripherals
Data Sheet
November 1, 2004
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. 2003-2004. 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 |
|---|---|
| ISL6426CR | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Intersil Corporation 功能描述: |
| ISL6426CV | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Intersil Corporation 功能描述: |
| ISL6426IB | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| ISL6426IB-T | 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel |
| ISL6426IR | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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