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B320 查看數據表(PDF) - Orister Corporation

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B320 Datasheet PDF : 11 Pages
1 2 3 4 5 6 7 8 9 10
RS6515
2A, 20V, 400KHz DC/DC Asynchronous StepDown Converter
Page No. : 1/11
General Description
The RS6515 is a highefficiency asynchronous stepdown DC/DC converter that can deliver up to 2A output current from
4.75V to 20V input supply. The RS6515's current mode architecture and external compensation allow the transient
response to be optimized over a wide range of loads and output capacitors. Cyclebycycle current limit provides protection
against shorted outputs and softstart eliminates input current surge during startup.
The RS6515 also provides output under voltage protection and thermal shutdown protection. The low current (<30μA)
shutdown mode provides output disconnection, enabling easy power management in batterypowered systems.
Features
2A Output Current
Up to 93% Efficiency
Integrated 100mΩ Power MOSFET Switches
Fixed 385KHz Frequency
CyclebyCycle Over Current Protection
Thermal Shutdown function
Wide 4.75V to 21V Operating Input Range
Output Adjustable from 0.92V to 18V
Programmable Under Voltage Lockout
Available in an MSOP10(EP) Package
RoHS Compliant and 100% Lead (Pb)Free and Green
(Halogen Free with Commercial Standard)
Applications
PC Motherboard, Graphic Card
LCD Monitor
SetTop Boxes
DVDVideo Player
Telecom Equipment
ADSL Modem
Printer and other Peripheral Equipment
Microprocessor core supply
Networking power supply
PreRegulator for Linear Regulators
Green Electronics/Appliances
Application Circuits
INPUT
4.75V to 21V
C1
10uF/35V
CERAMIC x2
OFF ON
C4
0.1uF
U1
4 IN
9
EN
SW 5
10 SS
FB 7
6 GND COMP 8
RS6515ADMS
C5
L1
10nF
D1
15uH
B340A
C6 (Optional)
R3
C3
5.6KΩ 8.2nF
R1
25.8KΩ 1%
OUTPUT
3.3V/2A
C2
R2
10KΩ 1%
22uF/6.3V
CERAMIC x2
This integrated circuit can be damaged by ESD. Orister Corporation recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
DSRS651508 JULY, 2010
www.Orister.com

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