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SP7651ER-L PDF预览

SP7651ER-L

更新时间: 2024-01-31 18:04:43
品牌 Logo 应用领域
西伯斯 - SIPEX 稳压器
页数 文件大小 规格书
15页 1035K
描述
Wide Input Voltage Range 3Amp 900kHz Buck Regulator

SP7651ER-L 技术参数

是否Rohs认证: 符合生命周期:Active
包装说明:HVSON,Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.66其他特性:ALSO OPERATES WITH 3V TO 20V SUPPLY
模拟集成电路 - 其他类型:SWITCHING REGULATOR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:4.5 V标称输入电压:5 V
JESD-30 代码:R-PDSO-N26JESD-609代码:e3
长度:7 mm湿度敏感等级:3
功能数量:1端子数量:26
最高工作温度:85 °C最低工作温度:-40 °C
最大输出电流:5 A封装主体材料:PLASTIC/EPOXY
封装代码:HVSON封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度(摄氏度):260
认证状态:Not Qualified座面最大高度:1 mm
表面贴装:YES切换器配置:BUCK
最大切换频率:990 kHz温度等级:INDUSTRIAL
端子面层:Matte Tin (Sn)端子形式:NO LEAD
端子节距:0.5 mm端子位置:DUAL
处于峰值回流温度下的最长时间:40宽度:4 mm
Base Number Matches:1

SP7651ER-L 数据手册

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Solved by  
SP7651  
TM  
Wide Input Voltage Range 3Amp  
900kHz Buck Regulator  
FEATURES  
2.5V to 20V Step Down Achieved Using Dual Input  
Output Voltage down to 0.8V  
SP7651  
DFN PACKAGE  
7mm x 4mm  
P
GND  
GND  
GND  
26  
1
3A Output Capability (Up to 5A with Air Flow)  
Built in Low RDSON Power FETs (40 mΩ typ)  
Highly Integrated Design, Minimal Components  
900 kHz Fixed Frequency Operation  
UVLO Detects Both VCC and VIN  
LX  
LX  
LX  
BOTTOM VIEW  
25  
24  
P
2
3
4
Heatsink Pad 1  
Connect to Lx  
Pin 27  
P
GND  
23  
22  
LX  
5
VFB  
V
CC  
GND  
GND  
GND  
BST  
NC  
6
7
8
21  
20  
COMP  
UVIN  
GND  
SS  
Over Temperature Protection  
Heatsink Pad 2  
Connect to GND  
Short Circuit Protection with Auto-Restart  
Wide BW Amp Allows Type II or III Compensation  
Programmable Soft Start  
19  
18  
Pin 28  
9
10  
11  
12  
17  
V
IN  
Fast Transient Response  
Heatsink Pad 3  
Connect to VIN  
16  
15  
14  
V
IN  
IN  
LX  
High Efficiency: Greater than 92% Possible  
Asynchronous Start-Up into a Pre-Charged Output  
Small 7mm x 4mm DFN Package  
V
LX  
Pin 29  
13  
V
IN  
LX  
U.S. Patent #6,922,04ꢀ  
DESCRIPTION  
The SP7651 is a high voltage synchronous step-down switching regulator optimized for high efficiency. The part  
is designed to be especially attractive for dual supply, ꢀ2V step down with 5V used to power the controller. This  
lower VCC voltage minimizes power dissipation in the part. The SP765ꢀ is designed to provide a fully integrated  
buck regulator solution using a fixed 900kHz frequency, PWM voltage mode architecture. Protection features  
include UVLO, thermal shutdown and output short circuit protection. The SP765ꢀ is available in the space saving  
7mm X 4mm DFN package.  
TYPICAL APPLICATION CIRCUIT  
Uꢀ  
SP7651  
Lꢀ  
2
26  
25  
24  
23  
22  
2ꢀ  
20  
ꢀ9  
ꢀ8  
ꢀ7  
ꢀ6  
ꢀ5  
ꢀ4  
PGND  
PGND  
PGND  
GND  
VFB  
LX  
LX  
VOUT  
3.3V  
0-3A  
4.7uH, Irate=3.87A  
Rꢁ3  
7.ꢀ5k,  
1%  
Rꢁ2  
Cꢁ2  
3
LX  
+5V  
VCC  
ꢀ5k,1%  
ꢀ,000pF  
C3  
22uF  
6.3V  
4
LX  
Rꢀ  
CPꢀ  
5
68.ꢀk,ꢀ%  
VCC  
GND  
GND  
GND  
BST  
NC  
Cꢁ3  
22pF  
6
ꢀ50pF  
COMP  
UVIN  
GND  
SS  
CVCC  
2.2uF  
7
CFꢀ  
ꢀ00pF  
ENABLE  
8
DBST  
9
RSET  
2ꢀ.5k,ꢀ%  
ꢀ0  
ꢀꢀ  
ꢀ2  
ꢀ3  
SD101AWS  
VIN  
CSS  
ꢀ5nF  
(note 2)  
VIN  
LX  
CBST  
6800pF  
VIN  
LX  
VIN  
LX  
VIN  
12V  
fs=900Khz  
Notes:  
1. U1 Bottom-Side Layout should  
have three contacts isolated from  
one another: Vin, SWNODE, and GND.  
Cꢀ  
22uF  
16V  
GND  
2. RSET=54.48/(Vout-0.8V) (KOhm)  
Rev J: 3/ꢀ4/07  
SP765ꢀ Wide Input Voltage Range 3A, 900kHz, Buck Regulator  
© Copyright 2007 Sipex Corporation  

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