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SP6134CU-L 参数 Datasheet PDF下载

SP6134CU-L图片预览
型号: SP6134CU-L
PDF下载: 下载PDF文件 查看货源
内容描述: 600kHz的PWM同步降压控制器 [600kHz Synchronous PWM Step Down Controller]
分类和应用: 开关光电二极管控制器
文件页数/大小: 15 页 / 751 K
品牌: EXAR [ EXAR CORPORATION ]
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S P613 4
600kHz Synchronous PWM Step Down Controller
January 2009
Rev. 2.0.0
GENERAL DESCRIPTION
The SP6134 is a 600kHz constant frequency,
voltage mode, synchronous PWM step down
controller optimized for high efficiency.
The SP6134 is adequately suited for split plane
applications utilizing a low power 5V rail to
power the controller circuitry, minimizing
power dissipation. Its wide input voltage range
of 3V to 15V allows for conversions from the
standard 3.3V, 5V, 9.6V and 12V power rails
to an output voltage adjustable down to 0.8V.
Developed around a wide bandwidth internal
amplifier, the SP6134 can accommodate type
II and type III compensation schemes.
Protection features include a programmable
UVLO, thermal shutdown and output short
circuit protection.
The SP6134 is part of a larger family of step
down
controllers
operating
at
various
switching frequencies up to 1300kHz and input
voltages up to 28V. Refer to Exar’s SP6134H,
SP6132, SP6132H, SP6137 and SP6139 for
complete details.
The SP6134 is available in lead free, RoHS
compliant,
space
saving
10-pin
MSOP
package.
APPLICATIONS
12V DPA
Communications Systems
Graphics Cards
FEATURES
3V to 15V Step Down Achieved Using
Dual Input
On-Board 1.5Ω sink (2Ω source) NFET
Drivers
Up to 15A Output Capability
UVLO Detects Both VCC and VIN
Short-Circuit Protection with Auto-
Restart
Supports Type II or III Compensation
Programmable Soft Start
Fast Transient Response
High Efficiency: Greater than 94%
Non-synchronous Start-Up
Small 10-Pin MSOP Package
U.S. Patent #6,922,041
TYPICAL APPLICATION DIAGRAM
Fig. 1: SP6134 Application Diagram
Exar Corporation
48720 Kato Road, Fremont CA 94538, USA
www.exar.com
Tel. +1 510 668-7000 – Fax. +1 510 668-7001