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| 型号： | ISL8126IRZ-TK |
| 厂商： | Intersil |
| 文件页数： | 1/39页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM VM 32-QFN |
| 标准包装： | 1,000 |
| PWM 型： | 电压模式 |
| 输出数： | 2 |
| 频率 - 最大： | 1.5MHz |
| 占空比： | 90% |
| 电源电压： | 3 V ~ 5.6 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： | 32-VFQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
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Dual/n-Phase Buck PWM Controller with Integrated
Drivers
ISL8126
The ISL8126 integrates two voltage-mode PWM leading-edge
modulation control with input feed-forward synchronous buck
PWM controllers to control dual independent voltage
regulators or a 2-phase single output regulator. It also
integrates current sharing control for the power module to
operate in parallel, which offers high system flexibility.
The ISL8126 integrates an internal linear regulator, which
generates IC’s bias voltages for applications with only one
single supply rail. The internal oscillator is adjustable from
150kHz to 1.5MHz, and is able to synchronize to an external
clock signal for frequency synchronization and phase
paralleling applications. Its PLL circuit can output a
phase-shift-programmable clock signal for the system to be
expanded to 3-, 4-, 6-, 12- phases with desired interleaving
phase shift.
The ISL8126’s Fault Spreading feature protects any channel
from overloading/stressing due to system faults or phase
failure. The undervoltage fault protection features are also
designed to prevent a negative transient on the output voltage
during falling down. This eliminates the Schottky diode that is
used in some systems for protecting the load device from
reversed output voltage damage.
Table 1 summarizes the differences between ISL8126 and
ISL8126A.
TABLE 1.
Features
? Wide V IN Range Operation: 3V to 26.5V
- VCC Operation from 3V to 5.60V
? Excellent Output Voltage Regulation: 0.6V Internal
Reference
? Frequency Synchronization with Programmable Phase Delay
up to 12-Phase Applications
? Fault Spreading Capability for High System Reliability
? Digital Soft-Start with Pre-Charged Output Start-up
Capability
? Dual Independent Channel Enable Inputs with Precision
Voltage Monitor and Voltage Feed-forward Capability
- Programmable Input Voltage POR and its Hysteresis with
a Resistor Divider at EN Input
? Extensive Circuit Protection Functions: Output Overvoltage,
Undervoltage, Overcurrent Protection, Over-temperature and
Pre-Power-On-Reset Overvoltage Protection Option
Applications
? Power Supply for Datacom/Telecom and POL
? Paralleling Power Module
? Wide and Narrow Input Voltage Range Buck Regulators
Related Literature
DEVICES
ISL8126
REFERENCE VOLTAGE
(V)
0.6
VSEN1+ to VSEN1- INPUT
IMPEDANCE
500k Ω
? Technical Brief TB389 “PCB Land Pattern Design and
Surface Mount Guidelines for QFN Packages”
ISL8126A
August 16, 2012
FN7892.1
0.7
1
>2M Ω
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas Inc. 2011, 2012. 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.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL8128IAZ-TK | 制造商:Intersil Corporation 功能描述:PB-FREE SYNC BUCK PWM CONT. W/ 4.5V-28V |
| ISL8130 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Advanced Single Universal Pulse-Width Modulation (PWM) Controller |
| ISL8130EVAL3Z | 制造商:Intersil Corporation 功能描述:ISL8130 EVALUATION BOARD 3 - 20LD QSOP - ROHS COMPLIANT - Bulk 制造商:Intersil Corporation 功能描述:BOARD EVAL FOR ISL8130 制造商:Intersil Corporation 功能描述:ISL8130 EVALUATION BOARD 3 - 20LD QSOP - RoHS COMPLIANT |
| ISL8130IAZ | 功能描述:IC REG CTRLR BST FLYBK VM 20QSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:275kHz 占空比:50% 电源电压:18 V ~ 110 V 降压:无 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:是 工作温度:-40°C ~ 85°C 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 包装:带卷 (TR) |
| ISL8130IAZ-T7A | 功能描述:电流型 PWM 控制器 PB-FREE SYNC BUCK PWM CONT. W/ 4.5V-28V INPUT,20LD QSOP, 250 RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
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