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SC2659SWTR PDF预览

SC2659SWTR

更新时间: 2024-09-10 04:05:27
品牌 Logo 应用领域
商升特 - SEMTECH 稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数 文件大小 规格书
20页 339K
描述
Programmable Synchronous DC/DC Hysteretic Controller with VRM 8.5 VID Range

SC2659SWTR 技术参数

是否无铅:含铅是否Rohs认证:不符合
生命周期:Active零件包装代码:SOIC
包装说明:SOP, SOP28,.4针数:28
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.85
Is Samacsys:N模拟集成电路 - 其他类型:SWITCHING CONTROLLER
控制模式:VOLTAGE-MODE最大输入电压:13 V
最小输入电压:11.4 V标称输入电压:12 V
JESD-30 代码:R-PDSO-G28JESD-609代码:e0
长度:17.93 mm功能数量:1
端子数量:28最大输出电流:2 A
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装等效代码:SOP28,.4封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):NOT SPECIFIED
认证状态:Not Qualified座面最大高度:2.64 mm
子类别:Switching Regulator or Controllers表面贴装:YES
切换器配置:PUSH-PULL端子面层:TIN LEAD
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:7.5 mmBase Number Matches:1

SC2659SWTR 数据手册

 浏览型号SC2659SWTR的Datasheet PDF文件第2页浏览型号SC2659SWTR的Datasheet PDF文件第3页浏览型号SC2659SWTR的Datasheet PDF文件第4页浏览型号SC2659SWTR的Datasheet PDF文件第5页浏览型号SC2659SWTR的Datasheet PDF文件第6页浏览型号SC2659SWTR的Datasheet PDF文件第7页 
SC2659  
Programmable Synchronous DC/DC  
Hysteretic Controller with VRM 8.5 VID Range  
POWER MANAGEMENT  
Features  
Description  
The SC2659 is a synchronous-buck switch-mode con-  
troller designed for use in single ended power supply ap-  
plications where efficiency is the primary concern. The  
controller is a hysteretic type, with a user selectable hys-  
teresis. The SC2659 is ideal for implementing DC/DC  
converters needed to power advanced microprocessors  
such as Pentium® llI and Athlon®, in both single and mul-  
tiple processor configurations. Inhibit, under-voltage lock-  
out and soft-start functions are included for controlled  
power-up.  
‹ Programmable hysteresis  
‹ 5 bit DAC programmable output (1.050V-1.825V)  
‹ On-chip power good and OVP functions  
‹ Designed to meet latest Intel specifications  
‹ Up to 95% efficiency  
‹ VIDs pulled up to +3.3V  
Applications  
‹ Server Systems and Workstations  
‹ Pentium® III Core Supplies  
‹ AMD Athlon® Core Supplies  
‹ Multiple Microprocessor Supplies  
‹ Voltage Regulator Modules  
SC2659 features include an integrated 5 bit D/A con-  
verter, temperature compensated voltage reference,  
current limit comparator, over-current protection, and an  
adaptive deadtime circuit to prevent shoot-through of  
the power MOSFET during switching transitions. Power  
good signaling, logic compatible shutdown, and over-volt-  
age protection are also provided. The integrated D/A  
converter provides programmability of output voltage  
from 1.050V to 1.825V in 25mV increments.  
The SC2659 high side driver can be configured as either  
a ground-referenced or as a floating bootstrap driver.  
The high and low side MOSFET drivers have a peak cur-  
rent rating of 2 amps.  
Typical Application Circuit  
+5V  
R1  
*
R10  
1k  
R9  
10k  
U1  
SC2659  
R3  
PWRGD  
*
1
2
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
IOUT  
PWRGD  
VID0  
"POWER GOOD"  
R2  
1k  
C6  
0.1  
DROOP  
OCP  
R4  
1k  
INHIB  
3
"INHIBIT"  
VID1  
C7  
0.1  
R11  
1k  
4
VHYST  
VREFB  
VSENSE  
AGND  
SOFTST  
N/C  
VID2  
R5  
*
5
L1  
0.5uH  
VID3  
C1  
0.1  
R6  
20k  
+
6
VID25  
C2  
Cin  
HF  
Cin  
Bulk  
0.001  
Vin +5V/12V  
7
INHIBIT  
IOUTLO  
LOSENSE  
HISENSE  
BOOTLO  
HIGHDR  
BOOT  
_
8
C8  
C3  
0.1  
0.033  
9
+5V  
10  
11  
12  
13  
14  
LODRV  
LOHIB  
DRVGND  
LOWDR  
DRV  
C4  
0.01  
Q1  
FDB6035AL  
R12  
1.0  
L2  
1.0uH  
C9  
1.0  
+12V  
+
Q2  
VIN12V  
FDB7030BL  
R14  
1.6  
Cout  
Bulk  
Cout  
HF  
1.05 to 1.825V  
C5  
C10  
_
R7  
*
R8  
10k  
*) for the values see specific application circuit somewhere else in the datasheet  
Revision: December 10, 2003  
1
www.semtech.com  

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