ELM613DA Datasheet, PDF (1/11 Pages) ELM Electronics – 2A, 20V, 550kHz, synchronous step-down DC/DC converter

ELM613DA 2A, 20V, 550kHz, synchronous step-down DC/DC converter
■General description
ELM613DA is 550KHz fixed frequency PWM synchronous step-down regulator. ELM613DA is operated from
4.75V to 20V, the generated output is adjustable from 0.923V to 18V, and the output current can be up to 2A.
The integrated two MOSFET switches is with turn on resistance of 0.085Ω. Current mode control provides fast
transient response and cycle-by-cycle over current protection. The shutdown current is 1μA typical. Adjustable
soft start prevents inrush current at turn on. ELM613DA is with thermal shutdown.
■Features
• Programmable soft start
• Short circuit protection
• Thermal shutdown protection
• Input voltage
: 4.75V to 20V
• Output voltage
: 0.923V to 18V
• Output current
: 2A
• High efficiency
: Max.93%
• Power MOSFET switches : 85mΩ
• Shutdown current
: Typ.1µA
• Fixed frequency
: Typ.550kHz
• Package
: SOP-8
■Application
• Distributed power system
• Network system
• FPGA, DSP, ASIC power supply
• Notebook computer
• Green electronics and appliance
■Maximum absolute ratings
Parameter
Symbol
Limit
Unit
VIN power supply voltage
Vin
-0.3 to +21
V
Apply voltage to SW
Vsw
-0.3 to Vin+0.3
V
Apply voltage to BS
Vbs
Vsw-0.3 to Vsw+6
V
Apply voltage to FB
Vfb
-0.3 to +6
V
Apply voltage to COMP
Vcomp
-0.3 to +6
V
Apply voltage to EN
Ven
-0.3 to +6
V
Apply voltage to SS
Vss
-0.3 to +6
V
Power dissipation
Pd
630
mW
Operating temperature range
Top
-40 to +85
°C
Storage temperature range
Tstg
-65 to +150
°C
Caution:Permanent damage to the device may occur when ratings above maximum absolute ones are used.
■Selection guide
ELM613DA-N
Symbol
a
Package
b
Product version
c
Taping direction
* ^{Taping direction is one way.}
D: SOP-8
A
N: Refer to PKG file
ELM613DA - N
↑↑ ↑
ab c
11 - 1
Rev.1.3