|
RS6515 Datasheet, PDF (1/11 Pages) Orister Corporation – 2A, 20V, 400KHz DC/DC Asynchronous Step.Down Converter | |||
|
RS6515
2A, 20V, 400KHz DC/DC Asynchronous StepâDown Converter
Page No. : 1/11
General Description
The RS6515 is a highâefficiency asynchronous stepâdown 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. Cycleâbyâcycle current limit provides protection
against shorted outputs and softâstart eliminates input current surge during startâup.
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 batteryâpowered systems.
Features
â 2A Output Current
â Up to 93% Efficiency
â Integrated 100mΩ Power MOSFET Switches
â Fixed 385KHz Frequency
â CycleâbyâCycle Over Current Protection
â Thermal Shutdown function
â Wide 4.75V to 21V Operating Input Range
â Output Adjustable from 0.92V to 18V
â Programmable Under Voltage Lockout
â Available in an MSOPâ10(EP) Package
â RoHS Compliant and 100% Lead (Pb)âFree and Green
(Halogen Free with Commercial Standard)
Applications
â PC Motherboard, Graphic Card
â LCD Monitor
â SetâTop Boxes
â DVDâVideo Player
â Telecom Equipment
â ADSL Modem
â Printer and other Peripheral Equipment
â Microprocessor core supply
â Networking power supply
â PreâRegulator for Linear Regulators
â 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
RS6515âADMS
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.
DSâRS6515â08 JULY, 2010
www.Orister.com
|
▷ |