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MBR0530 参数 Datasheet PDF下载

MBR0530图片预览
型号: MBR0530
PDF下载: 下载PDF文件 查看货源
内容描述: 1.5 A , 170 kHz时,降压稳压器具有同步功能 [1.5 A, 170 kHz, Buck Regulator with Synchronization Capability]
分类和应用: 稳压器整流二极管光电二极管
文件页数/大小: 13 页 / 152 K
品牌: ONSEMI [ ON SEMICONDUCTOR ]
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NCP1546
1.5 A, 170 kHz, Buck
Regulator with
Synchronization Capability
The NCP1546 is a 1.5 A buck regulator IC operating at a
fixed−frequency of 170 kHz. The device uses the V
2
t
control
architecture to provide unmatched transient response, the best overall
regulation and the simplest loop compensation for today’s high−speed
logic. The NCP1546 accommodates input voltages from 4.5 V to 40 V
and contains synchronization circuitry.
The on−chip NPN transistor is capable of providing a minimum of
1.5 A of output current, and is biased by an external “boost” capacitor
to ensure saturation, thus minimizing on−chip power dissipation.
Protection circuitry includes thermal shutdown, cycle−by−cycle
current limiting and frequency foldback.
Features
http://onsemi.com
MARKING
DIAGRAM
1
18
NCP1546
AWLYYWW
G
G
18−LEAD DFN
MN SUFFIX
CASE 505
18
1
V
2
Architecture Provides Ultra−Fast Transient Response, Improved
Regulation and Simplified Design
2.0% Error Amp Reference Voltage Tolerance
Switch Frequency Decrease of 4:1 in Short Circuit Conditions
Reduces Short Circuit Power Dissipation
BOOST Lead Allows “Bootstrapped” Operation to Maximize
Efficiency
Sync Function for Parallel Supply Operation or Noise Minimization
Shutdown Lead Provides Power−Down Option
1.0
mA
Quiescent Current During Power−Down
Thermal Shutdown
Soft−Start
Pb−Free Packages are Available
A
= Assembly Location
WL
= Wafer Lot
YY
= Year
WW = Work Week
E
= Automotive Grade
G
= Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 12 of this data sheet.
©
Semiconductor Components Industries, LLC, 2007
1
March, 2007 − Rev. 0
Publication Order Number:
NCP1546/D