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SP6121CN-L/TR PDF预览

SP6121CN-L/TR

更新时间: 2024-09-09 13:13:55
品牌 Logo 应用领域
西伯斯 - SIPEX 转换器射频微波控制器
页数 文件大小 规格书
16页 358K
描述
Switching Controller, Voltage-mode, 2A, 560kHz Switching Freq-Max, PDSO8, LEAD FREE, MS-012AA, SOIC-8

SP6121CN-L/TR 技术参数

是否Rohs认证:符合生命周期:Transferred
包装说明:LEAD FREE, MS-012AA, SOIC-8Reach Compliance Code:unknown
风险等级:5.73Is Samacsys:N
模拟集成电路 - 其他类型:SWITCHING CONTROLLER控制模式:VOLTAGE-MODE
控制技术:PULSE WIDTH MODULATION最大输入电压:5.5 V
最小输入电压:3 V标称输入电压:4.5 V
JESD-30 代码:R-PDSO-G8JESD-609代码:e3
长度:4.9 mm湿度敏感等级:1
功能数量:1端子数量:8
最高工作温度:70 °C最低工作温度:
最大输出电流:2 A封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):260
认证状态:Not Qualified座面最大高度:1.75 mm
表面贴装:YES切换器配置:PUSH-PULL
最大切换频率:560 kHz温度等级:COMMERCIAL
端子面层:Matte Tin (Sn)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:40宽度:3.9 mm
Base Number Matches:1

SP6121CN-L/TR 数据手册

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®
SP6121  
Low Voltage, Synchronous Step Down PWM Controller  
Ideal for 2A to 10A, Small Footprint, DC-DC Power Converters  
FEATURES  
Optimized for Single Input Voltage - 3V to 5.5V  
1
2
3
4
8
7
6
5
VCC  
PDRV  
NDRV  
ISET  
High Efficiency: Greater than 95% possible  
Accurate, 500kHz Fixed Frequency Operation  
Fast Transient Response  
SP6121  
GND  
VFB  
8 Pin SOIC  
COMP  
ISENSE  
500µA, IQ (25µA in Shutdown)  
Internal, 0.4 V/ms, Soft Start Circuit  
Precision 1% Reference  
Now Available in Lead Free Packaging  
Resistor Programmable Output Voltage  
Lossless Adjustable Current Limit with  
High Side RDS(ON) Sensing  
0% to 100% Duty Cycle Range  
High Side PMOS Switch Negates Need for  
APPLICATIONS  
Supply Bias for  
- DSP  
- Microprocessor Core  
- I/O & Logic  
External Charge Pump  
Output Over Voltage Protection  
Hiccup Mode Current Limit Protection  
Video Cards  
Board Level Supply in  
Distributed Power Systems  
DESCRIPTION  
The SP6121 is a fixed frequency, voltage mode, synchronous PWM controller designed to work  
fromasingle5Vor3.3Vinputsupply,providingexcellentACandDCregulationforhighefficiency  
power conversion. The operating frequency is internally set at 500kHz, permitting the use of  
small, surface mount inductors and capacitors. Requiring only few external components, the  
SP6121 packaged in an 8-pin SOIC, is especially suited for low voltage applications where cost,  
small size and high efficiency are critical. With its low voltage capability and inherent 100% duty  
cycle operation, the SP6121 allows low dropout operation in the event of a low input supply  
voltage condition.  
TYPICAL APPLICATION CIRCUIT  
3.3V  
V
IN  
RSET  
2.3k  
C
IN  
RV  
CC  
5
47µF  
Ceramic 6.3V  
®®  
Q1  
Q2  
1.9V 8A  
1.8µH  
V
PDRV  
NDRV  
CC  
V
OUT  
CB  
3.3µF  
L1  
SP6121  
U1  
C
DS  
GND  
OUT  
470µF x 2  
R1  
5.2k  
I
SET  
V
FB  
I
COMP  
SENSE  
R2  
10k  
RZ  
10k  
CZ  
3.7nF  
CP  
50pF  
Q1 = FAIRCHILD FDS6375  
Q2 = FAIRCHILD FDS6690A  
DS = STMICROELECTRONICS STPS2L25BU  
L1 = PANASONIC ETQ-P6F1R6SFA  
COUT = SANYO 4TPB470M  
Date: 5/25/04  
SP6121 Low Voltage, Synchronous Step Down PWM Controller  
© Copyright 2004 Sipex Corporation  
1

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