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| 型号： | SP6651AER-L |
| 厂商： | Exar Corporation |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 0.8A 10DFN |
| 标准包装： | 1 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 1 V ~ 5.5 V |
| 输入电压： | 2.7 V ~ 5.5 V |
| 电流 - 输出： | 800mA |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-VFDFN 裸露焊盘 |
| 包装： | 散装 |
| 供应商设备封装： | 10-DFN（3x3） |
| 其它名称： | 1016-1404 |
?
SP6651A
High Efficiency 800mA Synchronous Buck Regulator
Ideal for portable designs powered with Li Ion battery
FEATURES
■ DFN Package (3mm x 3mm)
PV IN
1
10 LX
■ Ultra-low 20 μ A Quiescent Current
■ 98% Efficiency Possible
■ 800mA Output Current
■ 2.7V to 5.5V Input Voltage Range
■ Output Adjustable Down to 1.0V
■ No External FET’s Required
V IN
BLON
D1
D0
2
3
4
5
SP6651A
10 Pin DFN
9 P GND
8 GND
7 V OUT
6 FB
■ 1.25A Inductor Peak Current Limit
■ 100% Duty Ratio Low Dropout Operation
■ 80 μ A Light Load Quiescent Current
in Dropout
■ Over Temperature Protection
■ Logic Shutdown Control
■ Programmable UVLO and Adaptive
Battery Low Output
Now Available in Lead Free Packaging
APPLICATIONS
■ PDA's
■ DSC's
■ MP3 Players
■ USB Devices
■ Point of Use Power
DESCRIPTION
The SP6651A is a 800mA synchronous buck regulator which is ideal for portable applications that
use a Li-Ion or 3 cell alkaline/NiCD/NiMH input. The SP6651A’s proprietary control loop, 20 μ A
light load quiescent current, and 0.3 ? power switches provide excellent efficiency across a wide
range of output currents. As the input battery supply decreases towards the output voltage the
SP6651A seamlessly transitions into 100% duty ratio operation further extending useful battery
life. The SP6651A is protected against overload and short circuit conditions with a precise
inductor peak current limit. Other features include programmable under voltage lockout and low
battery detection, externally programmed output voltage down to 1.0V, logic level shutdown
control, and 140 ° C over temperature shutdown.
TYPICAL APPLICATION SCHEMATIC
2.7V to 5.5V Input
VI
L1
10 μ H
V OUT
800mA
P VIN
V IN
1M
C IN
22 μ F
10 ?
R VIN
CV IN
SP6651A
LX
P GND
C OUT
22 μ F
VO
BLON
1 μ F
D1
BLON
D1
GND
V OUT
R F
CF
22pF
D0
D0
FB
R I
200K
Date: 5/25/04
SP6651A High Efficiency 800mA Synchronous Buck Regulator
1
? Copyright 2004 Sipex Corporation
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SP6651AER-L/TR | 功能描述:DC/DC 开关控制器 High Eff 800mA Synchronous RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| SP6651AEU | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:Evaluation Board Manual |
| SP6651AEU/TR | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:High Efficiency 800mA Synchronous Buck Regulator Ideal for portable designs powered with Li Ion battery |
| SP6651AEU-L | 功能描述:DC/DC 开关控制器 High Eff 800mA Synchronous RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| SP6651AEU-L/TR | 功能描述:DC/DC 开关控制器 High Eff 800mA Synchronous RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
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