参数资料
型号: ISL6267HRZ
厂商: Intersil
文件页数: 29/33页
文件大小: 0K
描述: IC PWM CTRLR MULTIPHASE 48TQFN
标准包装: 50
系列: Robust Ripple Regulator™ (R³)
应用: 控制器,AMD Fusion? CPU GPU
输入电压: 4.5 V ~ 25 V
输出数: 2
输出电压: 0.013 V ~ 1.55 V
工作温度: -10°C ~ 100°C
安装类型: 表面贴装
封装/外壳: 48-VFQFN 裸露焊盘
供应商设备封装: 48-QFN(6x6)
包装: 管件
ISL6267
Layout Guidelines
Table 9 shows layout considerations for the ISL6267 controller. Refer to the reference designators shown in Figure 31.
TABLE 9. LAYOUT CONSIDERATIONS FOR THE ISL6267 CONTROLLER
ISL6267
BOTTOM PAD
1
2
3
4
5
6, 7, 8
9
10
11
12
13
14
15
16
17
18
SYMBOL
GND
FB2_NB
FB_NB
COMP_NB
VW_NB
PGOOD_NB
SVD, PWROK, SVC
ENABLE
PGOOD
VR_HOT
NTC
VW
COMP
FB
FB2
ISEN3
ISEN2
ISEN1
LAYOUT GUIDELINES
Create analog ground plane underneath the controller and the analog signal processing components. Do not let
the power ground plane overlap with the analog ground plane. Avoid allowing noisy planes/traces (e.g., phase
node) to crossover/overlap the analog plane.
Place the compensator components (R25, R9, R24, C88, C51, C86, and C153) close to the controller.
Place the capacitor (C85) across VW, and place COMP close to the controller.
No special consideration.
Use good signal integrity practices.
No special consideration.
No special consideration.
No special consideration.
Place the NTC thermistor (R46) close to the thermal source that is monitored to determine CPU V CORE thermal
throttling. Usually it is placed close to Core VR phase-1 high-side MOSFET.
Place the capacitor (C4) across VW and COMP close to the controller.
Place the compensator components (R7, R10, R11, C3, C6, C11 and C5) in general proximity to the controller.
Each ISEN pin has a capacitor (C isen ) decoupling it to VSUMN and then through another capacitor (C vsumn ) to
GND. Place Cisen capacitors as close as possible to the controller and keep the following loops small:
1. Any ISEN pin to another ISEN pin
2. Any ISEN pin to GND
The red traces in the following drawing show the loops to be minimized.
Phase1
L3
Ro
Risen
ISEN3
Cisen
Phase2
Risen
L2
Ro
Vo
ISEN2
Cisen
Phase3
Risen
L1
Ro
ISEN1
GND
Cisen
Vsumn
Cvsumn
19
20
VSEN
RTN
29
Place the VSEN/RTN filter (C12, C13) close to the controller for good decoupling.
January 8, 2013
FN7801.1
相关PDF资料
PDF描述
ISL6268CAZ IC REG CTRLR BUCK PWM 16-QSOP
ISL6269AIRZ IC REG CTRLR BUCK PWM 16-QFN
ISL6269BIRZ IC REG CTRLR BUCK PWM 16-QFN
ISL6269IRZ IC REG CTRLR BUCK PWM 16-QFN
ISL6271ACR-T IC PMIC XSCALE PROCESSOR 20-QFN
相关代理商/技术参数
参数描述
ISL6267HRZ-T 功能描述:电流型 PWM 控制器 MULTI-OUTPUT CNTRLR FOR AMD FUSION UP 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
ISL6268 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:High-Performance Notebook PWM Controller
ISL6268CAZ 功能描述:IC REG CTRLR BUCK PWM 16-QSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:Robust Ripple Regulator™ (R³) 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)
ISL6268CAZ-T 功能描述:IC REG CTRLR BUCK PWM 16-QSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:Robust Ripple Regulator™ (R³) 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)
ISL6268EVAL1Z 功能描述:EVALUATION BOARD FOR ISL6268 RoHS:是 类别:编程器,开发系统 >> 评估板 - DC/DC 与 AC/DC(离线)SMPS 系列:Robust Ripple Regulator™ (R³) 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:True Shutdown™ 主要目的:DC/DC,步升 输出及类型:1,非隔离 功率 - 输出:- 输出电压:- 电流 - 输出:1A 输入电压:2.5 V ~ 5.5 V 稳压器拓扑结构:升压 频率 - 开关:3MHz 板类型:完全填充 已供物品:板 已用 IC / 零件:MAX8969