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ISL95870

更新时间： 2024-02-04 08:47:22
品牌 Logo 应用领域
英特矽尔 - INTERSIL 调节器控制器便携式
页数 文件大小 规格书
29页 628K
描述
PWM DC/DC Controller with VID Inputs for Portable GPU Core-Voltage Regulator

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ISL95870 技术参数

生命周期：Unknown零件包装代码：QFN
包装说明：HVQCCN, LCC20,.12X.16,20针数：20
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：13 weeks
风险等级：5.18Is Samacsys：N
其他特性：ALSO OPERATES IN ADJUSTABLE MODE FROM 0.5 TO 5V模拟集成电路 - 其他类型：SWITCHING CONTROLLER
控制模式：CURRENT-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：5.25 V最小输入电压：4.75 V
标称输入电压：5 VJESD-30 代码：R-PQCC-N20
JESD-609代码：e3长度：4 mm
湿度敏感等级：3功能数量：1
端子数量：20最高工作温度：100 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：HVQCCN封装等效代码：LCC20,.12X.16,20
封装形状：RECTANGULAR封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：1 mm子类别：Switching Regulator or Controllers
表面贴装：YES切换器配置：PUSH-PULL
最大切换频率：1000 kHz温度等级：INDUSTRIAL
端子面层：Matte Tin (Sn) - annealed端子形式：NO LEAD
端子节距：0.5 mm端子位置：QUAD
处于峰值回流温度下的最长时间：30宽度：3 mm
Base Number Matches：1

ISL95870 数据手册

 浏览型号ISL95870的Datasheet PDF文件第2页浏览型号ISL95870的Datasheet PDF文件第3页浏览型号ISL95870的Datasheet PDF文件第4页浏览型号ISL95870的Datasheet PDF文件第5页浏览型号ISL95870的Datasheet PDF文件第6页浏览型号ISL95870的Datasheet PDF文件第7页 
PWM DC/DC Controller with VID Inputs for  
Portable GPU Core-Voltage Regulator  
ISL95870, ISL95870A, ISL95870B  
The ISL95870, ISL95870A, ISL95870B ICs are  
Features  
• Input Voltage Range: 3.3V to 25V  
• Output Voltage Range: 0.5V to 5V  
• Precision Regulation  
- Proprietary R ™ Frequency Control Loop  
- ±0.5% System Accuracy Over -10°C to +100°C  
Single-Phase Synchronous-Buck PWM regulators  
4
featuring Intersil’s proprietary R Technology™. The wide  
3.3V to 25V input voltage range is ideal for systems that  
run on battery or AC-adapter power sources. The  
ISL95870A and ISL95870B are low-cost solutions for  
applications requiring dynamically selected slew-rate  
controlled output voltages. The soft-start and dynamic  
setpoint slew-rates are capacitor programmed. Voltage  
identification logic-inputs select four (ISL95870A,  
ISL95870B) resistor-programmed setpoint reference  
voltages that directly set the output voltage of the  
converter between 0.5V and 1.5V, and up to 5V with a  
feedback voltage divider.  
4
• Optimal Transient Response  
4
- Intersil’s R ™ Modulator Technology  
• Output Remote Sense  
• Extremely Flexible Output Voltage Programmability  
- 2-Bit VID Selects Four Independent Setpoint  
Voltages for ISL95870B  
- 2-Bit VID Selects Four Dependent or Three  
Independent Setpoint Voltages for ISL95870A  
- Simple Resistor Programming of Setpoint Voltages  
3
4
Compared with R modulator, the R modulator has  
equivalent light-load efficiency, faster transient  
performance, accurately regulated frequency control and  
all internal compensation. These updates, together with  
integrated MOSFET drivers and schottky bootstrap diode,  
allow for a high-performance regulator that is highly  
compact and needs few external components. The  
differential remote sensing for output voltage and  
selectable switching frequency are another two new  
functions. For maximum efficiency, the converter  
automatically enters diode-emulation mode (DEM)  
during light-load conditions such as system standby.  
• Selectable 300kHz, 500kHz, 600kHz or 1MHz PWM  
Frequency in Continuous Conduction  
• Automatic Diode Emulation Mode for Highest Efficiency  
• Power-Good Monitor for Soft-Start and Fault Detection  
Applications*(see page 26)  
• Mobile PC Graphical Processing Unit VCC Rail  
• Mobile PC I/O Controller Hub (ICH) VCC Rail  
• Mobile PC Memory Controller Hub (GMCH) VCC Rail  
R
C
VCC  
+5V  
C
VCC  
PVCC  
V
IN  
3.3V TO 25V  
CIN  
Q
HS  
1
12  
11  
10  
9
GND  
RTN  
BOOT  
R
FB1  
RTN1  
2
V
UGATE  
PHASE  
PGOOD  
L
OUT  
O
0.5V TO 5V  
3
4
EN  
GPIO  
Q
LS  
CO  
SREF  
C
SEN  
RTN1  
C
BOOT  
R
O
0
R
FB  
R
OFS  
FIGURE 1. ISL95870 APPLICATION SCHEMATIC WITH ONE OUTPUT VOLTAGE SETPOINT AND DCR CURRENT SENSE  
December 22, 2009  
FN6899.0  
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. 2009. All Rights Reserved  
1
All other trademarks mentioned are the property of their respective owners.  
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