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ELM Technology - 1.3A 36V PWM step down DC/DC converter

Numéro de référence ELM610DA
Description 1.3A 36V PWM step down DC/DC converter
Fabricant ELM Technology 
Logo ELM Technology 





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ELM610DA fiche technique
ELM610DA 1.3A 36V PWM step down DC/DC converter
General description
ELM610DA consists of step-down switching regulator with PWM control, reference voltage source, oscillation
circuit, error amplifier, internal PMOS, etc. ELM610DA provides low-ripple power, high efficiency, and
excellent transient characteristics; PWM control circuit is able to vary the duty ratio linearly from 0 up to 100%.
ELM610DA also contains error amplifier circuit as well as soft-start circuit that prevents overshoot at during
startup. Internal enable function, over current protect function and short circuit protect function will reduce the
operation frequency from 150kHz to 30kHz when overmuch current or short circuit occurs. Meanwhile, internal
compensation block is able to minimize the quantity of required external component. With internal P-channel
Power MOS, and externally connected coil, capacitor, and diode, ELM610DA is able to function as step-down
switching regulator. By the small package of SOP-8, ELM610DA is capable of working as ideal power supply
units for portable devices while providing outstanding features such as low current consumption. Since this
converter accommodates input voltage up to 36V, ELM610DA is also suitable for operations which adopt AC
adapter.
■Features
• Input voltage
: 5.5V to 36V
• Output voltage
: 0.8V to Vin
• Output current
: 1.3A
• Duty ratio
: 0% to 100%
• Constant frequency : Typ.150kHz
• Soft-start
• Thermal shutdown protection
• Short circuit protection
• Built-in internal P-channel MOS
• Package
: SOP-8
■Application
• PC motherboard
• LCD monitor
• Graphic card
• DVD, blu-ray player
• Telecom equipment
• ADSL modem
• Printer and other peripheral equipment
• Microcomputer power supply
• Network power supply
■Maximum absolute ratings
Parameter
Symbol
Limit
VIN power supply voltage
Vin
-0.3 to +40
Apply voltage to FB
Vfb GND-0.3 to Vin
Apply voltage to EN
Ven GND-0.3 to Vin+0.3
Apply voltage to SW
Vsw GND-0.3 to Vin+0.3
Apply voltage to VC
Vc Vin-20 to Vin+0.3
Power dissipation
Pd 300
Operating temperature range
Top
-40 to +85
Storage temperature range Tstg -65 to +150
Caution: Permanent damage to the device may occur when ratings above maximum absolute ones are used.
Unit
V
V
V
V
V
mW
°C
°C
7 - 1 Rev.1.0

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