5秒后页面跳转
ISL95875 PDF预览

ISL95875

更新时间: 2024-02-29 00:41:45
品牌 Logo 应用领域
瑞萨 - RENESAS /
页数 文件大小 规格书
29页 1281K
描述
PWM DC/DC Controllers with VID Inputs for Portable GPU Core-Voltage Regulator

ISL95875 数据手册

 浏览型号ISL95875的Datasheet PDF文件第2页浏览型号ISL95875的Datasheet PDF文件第3页浏览型号ISL95875的Datasheet PDF文件第4页浏览型号ISL95875的Datasheet PDF文件第5页浏览型号ISL95875的Datasheet PDF文件第6页浏览型号ISL95875的Datasheet PDF文件第7页 
DATASHEET  
ISL95874, ISL95875, ISL95876  
PWM DC/DC Controllers with VID Inputs for Portable GPU Core-Voltage  
Regulator  
FN7933  
Rev 1.00  
March 2, 2012  
The ISL95874, ISL95875, ISL95876 ICs are Single-Phase  
Features  
Synchronous-Buck PWM regulators featuring Intersil’s  
4
• Input Voltage Range: 3.3V to 25V  
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 ISL95875 and ISL95876 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 (ISL95875,  
ISL95876) 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.  
• Output Voltage Range: 0.5V to 5V  
• Precision Regulation  
4
- Proprietary R ™ Frequency Control Loop  
- ±0.5% System Accuracy Over -10°C to +100°C  
• Optimal Transient Response  
4
- Intersil’s R ™ Modulator Technology  
• Output Remote Sense  
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.  
• Extremely Flexible Output Voltage Programmability  
- 2-Bit VID Selects Four Independent Setpoint Voltages for  
ISL95875 and ISL95876  
- Simple Resistor Programming of Setpoint Voltages  
• 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  
• 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
VCC  
+5V  
C
VCC  
C
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 3.3V  
3
4
EN  
GPIO  
Q
LS  
CO  
SREF  
C
SEN  
RTN1  
C
BOOT  
R
O
0
R
FB  
R
OFS  
FIGURE 1. ISL95874 APPLICATION SCHEMATIC WITH ONE OUTPUT VOLTAGE SETPOINT AND DCR CURRENT SENSE  
FN7933 Rev 1.00  
March 2, 2012  
Page 1 of 29  

与ISL95875相关器件

型号 品牌 获取价格 描述 数据表
ISL95875HRUZ-T RENESAS

获取价格

PWM DC/DC Controllers with VID Inputs for Portable GPU Core-Voltage Regulator
ISL95875IRUZ-T RENESAS

获取价格

PWM DC/DC Controllers with VID Inputs for Portable GPU Core-Voltage Regulator
ISL95876 RENESAS

获取价格

PWM DC/DC Controllers with VID Inputs for Portable GPU Core-Voltage Regulator
ISL95876 INTERSIL

获取价格

PWM DC/DC Controller with VID Inputs for Portable GPU Core-Voltage Regulator
ISL95876HRZ RENESAS

获取价格

PWM DC/DC Controllers with VID Inputs for Portable GPU Core-Voltage Regulator
ISL95876HRZ-T RENESAS

获取价格

PWM DC/DC Controllers with VID Inputs for Portable GPU Core-Voltage Regulator
ISL95876IRZ RENESAS

获取价格

PWM DC/DC Controllers with VID Inputs for Portable GPU Core-Voltage Regulator
ISL95876IRZ-T RENESAS

获取价格

PWM DC/DC Controllers with VID Inputs for Portable GPU Core-Voltage Regulator
ISL95880 RENESAS

获取价格

3+1+1 Voltage Regulator with Expanded ICCMAX Register Range Supporting IMVP8 CFL/CNL CPUs
ISL95901 INTERSIL

获取价格

Wide VIN Dual Integrated Buck Regulator With 4A/4A Continuous Output Current and LDOs