参数资料
| 型号： | EL7571CM |
| 厂商： | Intersil |
| 文件页数： | 1/19页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR PWM PROGRAMMABLE 20SOIC |
| 标准包装： | 38 |
| 应用： | 控制器，Intel Pentium? II，Pro |
| 输入电压： | 4.5 V ~ 12.6 V |
| 输出数： | 2 |
| 输出电压： | 1.3 V ~ 3.5 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 20-SO |
| 包装： | 管件 |
?
EL7571
Data Sheet
October 25, 2004
FN7298.1
Programmable PWM Controller
The EL7571 is a flexible, high efficiency, current mode, PWM
step down controller. It incorporates five bit DAC adjustable
output voltage control which conforms to the Intel Voltage
Regulation Module (VRM) Specification for Pentium? II and
Pentium? Pro class processors. The controller employs
synchronous rectification to deliver efficiencies greater than
90% over a wide range of supply voltages and load
conditions. The on-board oscillator frequency is externally
adjustable, or may be slaved to a system clock, allowing
optimization of RFI performance in critical applications. In
single supply operation, the high side FET driver supports
boot-strapped operation. For maximum flexibility, system
operation is possible from either a 5V rail, a single 12V rail,
or dual supply rails with the controller operating from 12V
and the power FETs from 5V.
Pinout
R2
5 ?
D 1
Features
? Pentium? II Compatible
? 5 bit DAC Controlled Output Voltage
? Greater than 90% Efficiency
? 4.5V to 12.6V Input Range
? Dual NMOS Power FET Drivers
? Fixed frequency, Current Mode Control
? Adjustable Oscillator with External Sync. Capability
? Synchronous Switching
? Internal Soft-Start
? User Adjustable Slope Compensation
? Pulse by Pulse Current Limiting
? 1% Typical Output Accuracy
? Power Good Signal
? Output Power Down
ENABLE
C3 240pF
C3 240pF
1 OTEN
2 CSLOPE
3 COSC
VH1 20
HSD 19
LX 18
C6 0.1μF
Q1
C8
1μF
L2
C1 1.5μH
1000μ
F x3
4.5V
to
12.6V
? Over Voltage Protection
? Pb-Free Available (RoHS Compliant)
Applications
1.4V
POWER
GOOD
C3
0.1μF
4 REF
5 PWRGD
6 VIDO
VIN 17
VINP 16
LSD 15
C7
1μF
Q2
D2
L1
5.1μH
R2
5 ?
V OUT
1.3V to
3.5V
C2
1000μF
x6
? Pentium? II Voltage Regulation Modules (VRMs)
? PC Motherboards
? DC/DC Converters
? GTL Bus Termination
7 VID1
GNDP 14
Voltage
I.D. (VID
(0:4))
8 VID2
9 VID3
10 VID4
GND 13
CS 12
FB 11
? Secondary Regulation
Ordering Information
TAPE AND
PART NUMBER
PACKAGE
REEL
PKG. DWG. #
Q1, Q2: Siliconix, Si4410, x2
C1: Sanyo, 16MV 1000GX, 1000μF x3
C2: Sanyo, 6MV 1000GX, 1000μF x6
L1: Pulse Engineering, PE-53700, 5.1μH
L2: Micrometals, T30-26, 7T AWG #20, 1.5μH
R1: Dale, WSL-25-12, 15m ? , x2
D1: BAV99
D2: IR, 32CTQ030
EL7571CM
EL7571CM-T13
EL7571CMZ
(See Note)
EL7571CMZ-T13
20-Pin SO
20-Pin SO
20-Pin SO
(Pb-free)
20-Pin SO
-
13”
-
13”
MDP0027
MDP0027
MDP0027
MDP0027
(See Note)
(Pb-free)
NOTE: Intersil Pb-free products employ special Pb-free material
sets; molding compounds/die attach materials and 100% matte tin
plate termination finish, which are RoHS compliant and compatible
with both SnPb and Pb-free soldering operations. Intersil Pb-free
products are MSL classified at Pb-free peak reflow temperatures that
meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020C.
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright ? Intersil Americas Inc. 2003-2004. All Rights Reserved.
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 |
|---|---|
| EL7571CM-T13 | 功能描述:IC CTRLR PWM PROGRAMMABLE 20SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,000 系列:- 应用:电源，ICERA E400，E450 输入电压:4.1 V ~ 5.5 V 输出数:10 输出电压:可编程 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:42-WFBGA，WLCSP 供应商设备封装:42-WLP 包装:带卷 (TR) |
| EL7571CMZ | 功能描述:IC CTRLR PWM PROGRAMMABLE 20SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,000 系列:- 应用:电源，ICERA E400，E450 输入电压:4.1 V ~ 5.5 V 输出数:10 输出电压:可编程 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:42-WFBGA，WLCSP 供应商设备封装:42-WLP 包装:带卷 (TR) |
| EL7571CMZ-T13 | 功能描述:IC CTRLR PWM PROGRAMMABLE 20SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,000 系列:- 应用:电源，ICERA E400，E450 输入电压:4.1 V ~ 5.5 V 输出数:10 输出电压:可编程 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:42-WFBGA，WLCSP 供应商设备封装:42-WLP 包装:带卷 (TR) |
| EL7581 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:3-Channel DC-DC Converter |
| EL7581_06 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:3-Channel DC/DC Converter |
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