ELM605DA_17 Datasheet, PDF (1/13 Pages) ELM Technology Corporation – synchronous step-down DC/DC converter

ELM605DA 2A synchronous step-down DC/DC converter
■General description
ELM605DA is low-input voltage and high-output current synchronous-buck PWM converter and integrates
with all required active components. Its' operating input voltage ranges from 2.5V to 6V and output voltage
ranges from Vin down to 0.8V. ELM605DA operates at a fixed switching frequency of 1.0MHz. In addition, it
provides internal soft-start to reduce inrush-current, current-limit and thermal shutdown, preventing IC from
being damaged and improving design reliability. Open-drain power good monitors the output voltage.
■Features
• Current mode operation
• Power good function monitoring output voltage
• Internal soft start
• Thermal shutdown
• Current-limit and short-circuit protection
• Input voltage range
: 2.5V to 6.0V
• Output current
: 2A
• Low quiescent current (active mode) : 200μA
• Output voltage range (adj.)
: 0.8V to Vin
• Shutdown current
: 7μA
• High efficiency
: 95%
• Constant frequency operation
: 1.0MHz
• Package
: SOP-8
■Application
• ASIC/DSP/μP/FPGA core and I/O voltages
• Networking and telecommunications
• TV
• Set top boxes
• Cellular base stations
■Maximum absolute ratings
Parameter
Symbol
Limit
Unit
VIN power supply voltage
Vin
-0.3 to +6.5
V
Apply voltage to SW
Vsw
-0.3 to Vin+0.3
V
Apply voltage to EN
Ven
-0.3 to Vin
V
Apply voltage to FB
Vfb
-0.3 to Vin
V
Power dissipation
Pd
300
mW
Operating temperature range
Top
-40 to +150
°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
ELM605DA-S
Symbol
a
Package
b
Product version
c
Taping direction
* ^{Taping direction is one way.}
D: SOP-8
A
S: Refer to PKG file
ELM605DA - S
↑↑ ↑
ab c
13 - 1
Rev.1.2