參數(shù)資料
型號(hào)： ISL6550CIR-T
英文描述： Analog IC
中文描述： 模擬IC
文件頁(yè)數(shù)： 1/14頁(yè)
文件大?。?/td> 415K
代理商： ISL6550CIR-T
1
FN9056.4
ISL6527
Single Synchronous Buck Pulse-Width
Modulation (PWM) Controller
The ISL6527 makes 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 ISL6527
integrates the control, output adjustment, monitoring and
protection functions into a single package.
The ISL6527 provides simple, single feedback loop, voltage-
mode control with fast transient response. The output
voltage can be regulated to as low as the provided external
reference. 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/
μ
s 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.
Ordering Information
Features
Operates from 3.3V to 5V input
Utilizes an external reference
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
-
ISL6527: 300kHz
-
ISL6527A: 600kHz
- Internal soft-start
- 14 Lead SOIC or 16 Lead, 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
Applications
Power supplies for microprocessors
- PCs
- Embedded controllers
Subsystem power supplies
- PCI/AGP/GTL+ busses
- 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
PART NUMBER
TEMP
RANGE (
o
C)
PACKAGE
PKG DWG. #
ISL6527CB
0 to 70
14 Lead SOIC
M14.15
ISL6527ACB
0 to 70
14 Lead SOIC
M14.15
ISL6527CR
0 to 70
16 Lead 5x5 QFN L16.5x5B
ISL6527ACR
0 to 70
16 Lead 5x5 QFN L16.5x5B
ISL6527IB
-40 to 85
14 Lead SOIC
M14.15
ISL6527AIB
-40 to 85
14 Lead SOIC
M14.15
ISL6527IR
-40 to 85
16 Lead 5x5 QFN L16.5x5B
ISL6527AIR
-40 to 85
16 Lead 5x5 QFN L16.5x5B
ISL6527EVAL1
ISL6527 SOIC Evaluation Board
ISL6527EVAL2
ISL6527 QFN Evaluation Board
ISL6527AEVAL2 ISL6527A SOIC Evaluation Board
ISL6527AEVAL2 ISL6527A QFN Evaluation Board
Data Sheet
July 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.
All other trademarks mentioned are the property of their respective owners.
相關(guān)PDF資料
PDF描述
ISL6522EVAL1 Buck and Synchronous Rectifier Pulse-Width Modulator (PWM) Controller
ISL6526A Single Synchronous Buck Pulse-Width Modulation (PWM) Controller
ISL6741 Flexible Double-Ended Voltage and Current Mode PWM Controllers
ISL72991 Radiation Hardened Negative Low Dropout Adjustable Voltage Regulator
ISL74422RH Radiation Hardened 9A. Non-Inverting Power MOSFET Drivers
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ISL6551AB 制造商:Rochester Electronics LLC 功能描述:FULL BRIDGE CONTROLLER - Bulk
ISL6551AB-T 制造商:Rochester Electronics LLC 功能描述:- Bulk
ISL6551ABZ 功能描述:IC REG CTRLR FLYBACK PWM 28-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:275kHz 占空比:50% 電源電壓:18 V ~ 110 V 降壓:無(wú) 升壓:無(wú) 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:是 工作溫度:-40°C ~ 85°C 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:帶卷 (TR)
ISL6551ABZ-T 功能描述:IC REG CTRLR FLYBACK PWM 28-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:275kHz 占空比:50% 電源電壓:18 V ~ 110 V 降壓:無(wú) 升壓:無(wú) 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:是 工作溫度:-40°C ~ 85°C 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:帶卷 (TR)
ISL6551AR 制造商:Rochester Electronics LLC 功能描述: 制造商:Intersil Corporation 功能描述:
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*