参数资料
| 型号： | ISL95874IRUZ-T |
| 厂商： | Intersil |
| 文件页数： | 1/29页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR PWM 1PHASE GPU 16UTQFN |
| 标准包装： | 3,000 |
| 应用： | 控制器，GPU 内核电源 |
| 输入电压： | 3.3 V ~ 25 V |
| 输出数： | 1 |
| 输出电压： | 0.5 V ~ 5 V |
| 工作温度： | -40°C ~ 100°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-UFQFN 裸露焊盘 |
| 供应商设备封装： | 16-UTQFN（2.6x1.8） |
| 包装： | 带卷 (TR) |
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PWM DC/DC Controllers with VID Inputs for Portable
GPU Core-Voltage Regulator
ISL95874, ISL95875, ISL95876
The ISL95874, ISL95875, ISL95876 ICs are Single-Phase
Synchronous-Buck PWM regulators featuring Intersil’s
proprietary R 4 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.
Compared with R 3 modulator, the R 4 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.
Features
? Input Voltage Range: 3.3V to 25V
? Output Voltage Range: 0.5V to 5V
? Precision Regulation
- Proprietary R 4 ? Frequency Control Loop
- ±0.5% System Accuracy Over -10°C to +100°C
? Optimal Transient Response
- Intersil’s R 4 ? Modulator Technology
? Output Remote Sense
? 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 PVCC
C VCC
V IN
3.3V TO 25V
CIN
RTN1
R FB1
GPIO
1
2
3
GND
RTN
EN
BOOT
UGATE
PHASE
12
11
10
Q HS
L O
V OUT
0.5V TO 3.3V
4
SREF
PGOOD
9
Q LS
CO
C BOOT
C SEN
R O
RTN1
R OFS
R FB
0
FIGURE 1. ISL95874 APPLICATION SCHEMATIC WITH ONE OUTPUT VOLTAGE SETPOINT AND DCR CURRENT SENSE
March 2, 2012
FN7933.1
1
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 |
|---|---|
| ISL95875HRUZ-T | 功能描述:电流型 PWM 控制器 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 |
| ISL95875IRUZ-T | 功能描述:电流型 PWM 控制器 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 |
| ISL95901IRZ-T | 制造商:Intersil Corporation 功能描述:PMIC SOLUTION FOR PORTABLE 3.3V/5V SYSTEM POWER, 5X6 QFN, TR - Tape and Reel |
| ISL96017UIRT8Z | 功能描述:IC POT DGTL 50K OHM 8-TDFN RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数字电位器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 接片:256 电阻（欧姆）:100k 电路数:2 温度系数:标准值 35 ppm/°C 存储器类型:易失 接口:6 线串行（芯片选择，递增，增/减） 电源电压:2.6 V ~ 5.5 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:14-TSSOP 包装:带卷 (TR) |
| ISL96017UIRT8Z-T | 功能描述:IC XDCP 128-TAP 50KOHM 8-TDFN RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数字电位器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 接片:256 电阻（欧姆）:100k 电路数:2 温度系数:标准值 35 ppm/°C 存储器类型:易失 接口:6 线串行（芯片选择，递增，增/减） 电源电压:2.6 V ~ 5.5 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:14-TSSOP 包装:带卷 (TR) |
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