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参数资料
| 型号： | SP6652LEDEB |
| 厂商： | Exar Corporation |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR SP6652LED |
| 标准包装： | 1 |
| 系列： | * |
Solved by
TM
1A, High Efficiency, Fixed 1.4 MHz
Current Mode PWM Buck Regulator
SP6652
P GND
S GND
SP6652
FEATURES
■ 1A Output Current
■ 1.4MHz Constant Frequency Operation
■ 97% Efficiency Possible
■ 0.5μA (Max.) Shutdown Current
■ Adjustable Output Voltage
■ No External FETs or Schottky Diode Required
■ Uses Small Value Inductors and Ceramic
Output Capacitors
■ Low Dropout Operation: 100% Duty Cycle
■ Soft Start and Thermal Shutdown Protection
■ Easy Frequency Synchonization
■ Lead Free, RoHS Compliant package: l
Small (3mm X 3mm) 10 Pin DFN or MSOP
1 10
2 9
FB 3 8
10 Pin DFN
COMP 4 7
SD 5 6
APPLICATIONS
■ Mobile Phones
■ PDAs
■ DSCs
■ MP3 Players
■ USB Devices
■ Point of Use Power
LX
P VIN
S VIN
SYNC
MODE
DESCRIPTION
The SP6652 is a high efficiency, synchronous buck regulator ideal for portable applications
using one Li-Ion cell, with up to 1A of output current. The 1.4MHz switching frequency and
PWM control loop are optimized for a small value inductor and ceramic output capacitor,
for space constrained portable designs. In addition, the input voltage range of 2.7V to 5.5V;
excellent transient response, output accuracy, and ability to transition into 100% duty cycle
operation -- further extending useful battery life -- make the SP6652 a superior choice for
a wide range of portable power applications. A logic level shutdown control, external clock
synchronization, and forced-PWM or automatic control inputs are provided. Other features
include soft-start, over current protection and 140oC over-temperature shutdown .
TYPICAL APPLICATION CIRCUIT
V OUT
3.3V at 1A
4.7 μ H
1
P GND
LX
10
2
10 μ F
340k ?
100k ?
4k ?
S GND
3 FB
4 COMP
5 SD
P VIN
SP6652
S VIN
SYNC
MODE
9
8
7
6
3.6V - 5.5V
V IN
10 ?
1 μ F 10 μ F
10nF
ENABLE
SHUTDOWN
Oct10-07 RevJ
SP6652 1A, High Efficiency, Current Mode PWM Buck Regulator
? 2007 Sipex Corporation
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SP6654 | 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 |
| SP6654_05 | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:High Efficiency 800mA Synchronous Buck Regulator |
| SP6654EB | 功能描述:DC/DC 开关控制器 Hi Efficiency 800mA Sync Buck Regulator 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 |
| SP6654ER | 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 |
| SP6654ER/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 |
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