参数资料
| 型号： | SP6669DEK-L/TRR3 |
| 厂商： | Exar Corporation |
| 文件页数： | 1/11页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC 1.8V SOT23-5 |
| 标准包装： | 3,000 |
| 类型： | 降压（降压） |
| 输出类型： | 固定 |
| 输出数： | 1 |
| 输出电压： | 1.8V |
| 输入电压： | 2.5 V ~ 5.5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1.5MHz |
| 电流 - 输出： | 600mA |
| 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： | SC-74A，SOT-753 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | SOT-23-5 |
S P 6 6 6 9
6 0 0 m A 1 . 5 M H z S y n c h r o n o u s S t e p D o w n C o n v e r t e r
November 2012
GENERAL DESCRIPTION
The SP6669 is a synchronous current mode
PWM step down (buck) converter capable of
delivering up to 600mA of current. It features
a pulse skip mode (PSM) for light load
efficiency and a LDO mode for 100% duty
cycle.
With a 2.5V to 5.5V input voltage range and a
1.5MHz switching frequency, the SP6669
allows the use of small surface mount
inductors and capacitors ideal for battery
powered portable applications. The internal
synchronous switch increases efficiency and
eliminates the need for an external Schottky
diode. Low output voltages are easily
supported with the 0.6V feedback reference
voltage. The SP6669 is available in an
adjustable output voltage version, using an
external resistor divider circuit, as well as
fixed output voltage versions of 1.2V, 1.5V
and 1.8V.
Built-in over temperature and output over
voltage lock-out protections insure safe
operations under abnormal operating
conditions.
The SP6669 is offered in a RoHS compliant,
“green”/halogen free 5 -pin SOT23 package.
Rev. 2.2.0
APPLICATIONS
? Portable Equipments
? Battery Operated Equipments
? Audio-Video Equipments
? Networking & Telecom Equipments
FEATURES
? Guaranteed 600mA Output Current
? Input Voltage: 2.5V to 5.5V
? 1.5MHz PWM Current Mode Control
? 100% Duty Cycle LDO Mode Operations
? Achieves 95% Efficiency
? Fixed/Adjustable Output Voltage
Range
? As Low as 0.6V with ±3% Accuracy
? 1.2V, 1.5V, 1.8V Fixed Voltage Options
? Excellent Line/Load Transient
Response
? 200μA Quiescent Current
? Over Temperature Protection
? RoHS Compliant “Green”/Halogen Free
5-Pin SOT23 Package
TYPICAL APPLICATION DIAGRAM
Fig. 1: SP6669 Application Diagram (Adj. version shown)
Exar Corporation
48720 Kato Road, Fremont CA 94538, USA
www.exar.com
Tel. +1 510 668-7000 – Fax. +1 510 668-7001
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SP6669DEK-TRR3 | 制造商:EXAR 制造商全称:EXAR 功能描述:600mA 1.5MHz Synchronous Step Down Converter |
| SP6669EB | 功能描述:电源管理IC开发工具 Eval Board for SP6669 Series RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| SP668 | 制造商:Power-One 功能描述: |
| SP6680 | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:High Efficiency Buck/Boost Charge Pump Regulator |
| SP6680EB | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:Evaluation Board Manual |
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