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参数资料
| 型号： | SP6659EK1-1.5/TR |
| 元件分类： | 稳压器 |
| 英文描述： | 1.3 A SWITCHING REGULATOR, 1800 kHz SWITCHING FREQ-MAX, PDSO5 |
| 封装： | SOT-23, 5 PIN |
| 文件页数： | 1/11页 |
| 文件大小： | 204K |
| 代理商： | SP6659EK1-1.5/TR |
1
Date: 08/15/05
SP6659 1.5MHz, 600mA Synchronous Buck Regulator
Copyright 2005 Sipex Corporation
SP6659
The SP6659 is a 600mA synchronous buck regulator using a constant frequency, current mode
architecture. The output voltage can be programmed using an external resistor divider. The 2.5V
to 5.5V input voltage range is ideal for portable applications that use a Li-Ion battery. Switching
frequency is internally set at 1.5MHz, allowing the use of small surface mount inductors and
capacitors. The internal synchronous switch increases efficiency and eliminates the need for an
external Schottky diode. The output voltage can be programmed using an external resistor
divider. Low output voltages are easily supported with the 0.6V feedback reference voltage. The
SP6659 is available in a low profile 5 pin TSOT-23 package.
DESCRIPTION
FEATURES
■ 94% Efficiency Possible
■ 600mA Output Current at V
IN = 3.6V
■ 2.5V to 5.5V Input Voltage Range
■ 1.5MHz constant frequency operation
■ No Schottky Diode Required
■ Output Voltages as low as 0.6V
■ Slope Compensated Current Mode
Operation for Excellent Line and Load
Transient Response
■ 100 % Duty Cycle in LDO Mode
■ <1A Shutdown Current, Quiescent
Current of 300 A
■ Over-temperature protected
■ Pin Compatible to LTC3406B
■ Offered in Low Profile TSOT-23
package
APPLICATIONS
■ Cell Phones
■ Wireless and DSL Modems
■ DSC's
■ Portable Instruments
TYPICAL APPLICATION SCHEMATICS
Now Available in Lead Free Packaging
1.5MHz, 600mA Synchronous Buck Regulator
Preliminary
SP6659
4.7F
Ceramic
VIN
GND
VOUT
10F
Ceramic
VFB
SW
2.2H
R1
R2
RUN
Cf
100pF
1
4
3
5
2
54
SP6659
5 Pin TSOT-23
VIN
GND
RUN
SW
VFB
12
3
54
SP6659
5 Pin TSOT-23
VIN
GND
RUN
SW
VOUT
12
3
Adjustable
Fixed
SP6659
4.7F
Ceramic
VIN
GND
VOUT
10F
Ceramic
VOUT
SW
2.2H
RUN 1
4
3
5
2
Adjustable
Fixed
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SP6659EK118 | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:1.5MHz, 600mA Synchronous Buck Regulator |
| SP6659EK118/TR | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:1.5MHz, 600mA Synchronous Buck Regulator |
| SP6659EK1-L | 制造商:Exar Corporation 功能描述:REG BUCK 1.5MHZ 0.6A TSOT23-5 |
| SP6659EK1-L/TR | 功能描述:DC/DC 开关控制器 1.5MHz, 600mA 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 |
| SP6659EK1-L-1-5/TR | 功能描述:开关变换器、稳压器与控制器 1.5MHz, 600mA Synchronous RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
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