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LA8517

Linear Artwork
Part Number LA8517
Manufacturer Linear Artwork
Description 3A/23V Step-Down DC-DC Converter
Published Jul 25, 2014
Detailed Description LA8517 300KHz, 3A/23V Step-Down DC-DC Converter General Description LA8517 is a voltage mode, step-down DC-DC converter...
Datasheet PDF File LA8517 PDF File

LA8517
LA8517

Overview
LA8517 300KHz, 3A/23V Step-Down DC-DC Converter General Description LA8517 is a voltage mode, step-down DC-DC converter that is designed to meet 3A output current, and utilizes PWM control scheme that switches with 300KHz fixed frequency.
The input voltage range of LA8517 is from 3.
6V to 23V, and available in adjustable output voltage from 0.
8V to VIN.
The supply current is only 3mA during operation and under 1uA in shutdown.
This device provides an enable function that can be controlled by external logic signal.
It also provides excellent regulation during line or load transient.
Other features of current limit, thermal shutdown protection, and short circuit protection are also included.
Due to the low RDS(ON) of the internal power MOSFET, this device provides high efficiency step-down applications.
It can also operate with a maximum duty cycle of 100% for use in low drop-out conditions.
The package is available in standard SOP-8.
Features l l l l l l l l l l l l l l l Adjustable Output Voltage from 0.
8V to VIN 3.
6V to 23V Input Voltage Range Continuous 3A Output Capability 300KHz Oscillation Frequency 0.
8V Reference Voltage 1uA Low Shutdown Current 3mA Low Supply Current 100% Duty Cycle Built-in Low RDS(ON) Power MOSFET No External Compensation Required Support Low ESR Output Ceramic Capacitors Adjustable Current Limit Short Circuit and Thermal Protection SOP-8 Package Meet RoHS Standard Applications l l l l Broadband Communication Device LCD TV / Monitor Storage Device Wireless Application Ordering Information LA8517 1 2 3 4 1 (Package Type) => J: SOP Marking Information LA8517JG 1234 2 (Number of Pins) => G: 8pin 3 (Output Voltage) => Blank: Adjustable 4 (Special Feature) => Blank: N/A Available Part Number LA8517JG 1 2 (Date Code) For date code rule, please contact our sales representative directly 3 4 (Internal Code) LA8517-A01 -1- Aug.
27, 2009 LA8517 Typical Application l 12V to 5V/3A with 10uF Low ESR Ceramic Capacitors VIN=12V 4 22uH IN SW 5...


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