1

Rev.1.3

11 -

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

■General description

■Features

■Maximum absolute ratings

• Distributed power system

• Network system

• FPGA, DSP, ASIC power supply

• Notebook computer

• Green electronics and appliance

■Application

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.

• 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

Caution:Permanent damage to the device may occur when ratings above maximum absolute ones are used.

* Taping direction is one way.

ELM613DA-N

Symbol

a

Package

D: SOP-8

b

Product version

A

c

Taping direction

N: Refer to PKG file

ELM613DA - N

↑ ↑ ↑

a b c

■Selection guide