- 您现在的位置：买卖IC网 > PDF目录176104 > ISL6537ACR (INTERSIL CORP) ACPI Regulator/Controller for Dual Channel DDR Memory Systems PDF资料下载
参数资料
| 型号： | ISL6537ACR |
| 厂商： | INTERSIL CORP |
| 元件分类： | 稳压器 |
| 英文描述： | ACPI Regulator/Controller for Dual Channel DDR Memory Systems |
| 中文描述： | 3.3 A DUAL SWITCHING CONTROLLER, 280 kHz SWITCHING FREQ-MAX, PQCC28 |
| 封装： | 6 X 6 MM, PLASTIC, MO-220VJJC, QFN-28 |
| 文件页数： | 4/16页 |
| 文件大小： | 408K |
| 代理商： | ISL6537ACR |
12
FN9143.5
the heat to move away from the IC and also ties the pad to
the ground plane through a low impedance path.
The switching components should be placed close to the
ISL6537A first. Minimize the length of the connections
between the input capacitors, CIN, and the power switches
by placing them nearby. Position both the ceramic and bulk
input capacitors as close to the upper MOSFET drain as
possible. Position the output inductor and output capacitors
between the upper and lower MOSFETs and the load.
The critical small signal components include any bypass
capacitors, feedback components, and compensation
components. Place the PWM converter compensation
components close to the FB and COMP pins. The feedback
resistors should be located as close as possible to the FB
pin with vias tied straight to the ground plane as required.
Feedback Compensation - PWM Buck Converters
Figure 3 highlights the voltage-mode control loop for a
synchronous-rectified buck converter. The output voltage
(VOUT) is regulated to the Reference voltage level. The error
amplifier output (VE/A) is compared with the oscillator (OSC)
triangular wave to provide a pulse-width modulated (PWM)
wave with an amplitude of VIN at the PHASE node. The
PWM wave is smoothed by the output filter (LO and CO).
VDDQ
5VSBY
ISLAND ON POWER PLANE LAYER
ISLAND ON CIRCUIT AND/OR POWER PLANE LAYER
L1
COUT1
CIN
5VDUAL
KEY
COMP
ISL6537A
UGATE
R4
R2
CBP
FB
DRIVE3
5VSBY
FIGURE 2. PRINTED CIRCUIT BOARD POWER PLANES
AND ISLANDS
R1
VDAC
FB3
C2
VIA CONNECTION TO GROUND PLANE
COUT5
LO
AD
LO
AD
Q1
R11
R12
PHASE
R3
C3
C1
Q2
12VATX
CBP
GNDP
P12V
Q3
LGATE
VDDQ(2)
VTT(2)
COUT2
LO
AD
VDDQ
VTT
GND PAD
VGMCH
L2
COUT3
CIN
3.3VATX
COMP4
PWM4
R8
R6
FB4
R5
C6
LO
AD
Q1
R7
C7
C5
Q2
MOSFET DRIV
E
R
DRIVE2
VTT_GMCH/CPU
FB2
COUT4
LO
AD
R9
R10
Q3
3.3VATX
FIGURE 3. VOLTAGE-MODE BUCK CONVERTER
COMPENSATION DESIGN AND OUTPUT
VOLTAGE SELECTION
VDDQ
REFERENCE
LO
CO
ESR
VIN
ΔVOSC
ERROR
AMP
PWM
DRIVER
(PARASITIC)
ZFB
+
-
REFERENCE
R1
R3
R2
C3
C1
C2
COMP
VDDQ
FB
ZFB
ISL6537A
ZIN
COMPARATOR
DRIVER
DETAILED COMPENSATION COMPONENTS
PHASE
VE/A
+
-
+
-
ZIN
OSC
R4
V
DDQ
0.8
1
R
1
R
4
-------
+
×
=
ISL6537A
相关PDF资料 |
PDF描述 |
|---|---|
| ISL6537A | ACPI Regulator/Controller for Dual Channel DDR Memory Systems |
| ISL6612BIRZ-T | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP |
| ISL6613BIRZ-T | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP |
| ISL6740IBZ | Flexible Double Ended Voltage and Current Mode PWM Controllers |
| ISL6740IVZ | Flexible Double Ended Voltage and Current Mode PWM Controllers |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL6537ACRR5160 | 制造商:Intersil Corporation 功能描述: |
| ISL6537ACR-T | 功能描述:IC REG/CTRLR ACPI DUAL DDR 28QFN RoHS:否 类别:集成电路 (IC) >> PMIC - 电源管理 - 专用 系列:- 应用说明:Ultrasound Imaging Systems Application Note 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:37 系列:- 应用:医疗用超声波成像，声纳 电流 - 电源:- 电源电压:2.37 V ~ 6 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:56-WFQFN 裸露焊盘 供应商设备封装:56-TQFN-EP（8x8） 包装:管件 |
| ISL6537ACRZ | 功能描述:IC REG/CTRLR ACPI DUAL DDR 28QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电源管理 - 专用 系列:- 应用说明:Ultrasound Imaging Systems Application Note 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:37 系列:- 应用:医疗用超声波成像，声纳 电流 - 电源:- 电源电压:2.37 V ~ 6 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:56-WFQFN 裸露焊盘 供应商设备封装:56-TQFN-EP（8x8） 包装:管件 |
| ISL6537ACRZR5160 | 功能描述:IC REG/CTRLR ACPI DUAL DDR 28QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电源管理 - 专用 系列:- 应用说明:Ultrasound Imaging Systems Application Note 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:37 系列:- 应用:医疗用超声波成像，声纳 电流 - 电源:- 电源电压:2.37 V ~ 6 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:56-WFQFN 裸露焊盘 供应商设备封装:56-TQFN-EP（8x8） 包装:管件 |
| ISL6537ACRZ-T | 功能描述:IC REG/CTLR ACPI DUAL DDR 28QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电源管理 - 专用 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 应用:热电冷却器 电流 - 电源:- 电源电压:3 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:28-SOIC（0.173"，4.40mm 宽）裸露焊盘 供应商设备封装:28-TSSOP 裸露焊盘 包装:管件 产品目录页面:1410 (CN2011-ZH PDF) |
发布紧急采购，3分钟左右您将得到回复。