ELM615DA Datasheet, PDF (1/8 Pages) ELM Technology Corporation – 2A 18V 500kHz synchronous step down DC/DC converter

ELM615DA 2A 18V 500kHz synchronous step down DC/DC converter
http://www.elm-tech.com
■General description
ELM615DA is a high-frequency, synchronous, rectified, step-down, switch-mode converter with internal
power MOSFETs. It offers a very compact solution to achieve a 2A continuous output current over a wide input
supply range, with excellent load and line regulation. ELM615DA has synchronous-mode operation for higher
efficiency over the output current-load range.
Current-mode operation provides fast transient response and eases loop stabilization. Protection features
include over-current protection and thermal shutdown.
ELM615DA requires a minimal number of readily available, standard external components and is available in
space-saving SOP-8 package.
■Features
• Internal soft start
• Over current protection
• Over temperature protection
• Input voltage
: 4.75V to 18V
• Output adjustable voltage
: 0.923V to 15V
• Output current
: 2A
• Integrated power MOSFET switches : 129mΩ/87mΩ
• Shutdown current
: Typ 3µA
• High efficiency
: Max 95%
• Constant frequency
: Typ 500kHz
• Package
: SOP-8
■Maximum absolute ratings
Parameter
Supply voltage
Switch node
Boost voltage
All other pins
Power dissipation
Junction temperature
Operating temperature range
Storage temperature range
Symbol
Vin
Vsw
Vboot
Vall
Pd
Tj
Top
Tstg
■Application
• Distributed power systems
• Networking systems
• FPGA, DSP, ASIC power supplies
• Notebook computers
• Green electronics or appliance
Limit
Unit
-0.3 to +19.0
V
-0.3 to Vin+0.3
V
Vsw-0.3 to Vsw+6.0
V
-0.3 to +6.0
V
630
mW
+150
°C
-40 to +85
°C
-65 to +150
°C
■Selection guide
ELM615DA-N
Symbol
a
Package
b
Product version
c
Taping direction
* ^{Taping direction is one way.}
D: SOP-8
A
N: Refer to PKG file
ELM615 D A - N
↑↑ ↑
ab c
8-1
Rev.1.1