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PDF P1583 Data sheet ( Hoja de datos )
| Número de pieza | P1583 | |
| Descripción | 2.5A STEP-DOWN SWITCHING REGULATOR | |
| Fabricantes | Unisonic Technologies | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de P1583 (archivo pdf) en la parte inferior de esta página. Total 5 Páginas | ||
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UNISONIC TECHNOLOGIES CO., LTD
P1583
Preliminary
LINEAR INTEGRATED CIRCUIT
380KHz, 2.5A STEP-DOWN
SWITCHING REGULATOR
DESCRIPTION
The UTC P1583 is a fixed 380kHz frequency, current mode, PWM
controller. It achieves 2.5A continuous output current over a wide input
supply range with excellent load and line regulation. Equipped with an
external compensation pin, this device offers user flexibility in determining
loop dynamic.
The UTC P1583 integrates controls, monitoring and protection functions
into a single 8-pin package to provide a low cost and perfect power
solution. The device provides wide 4 to 24V operating input range, also
highly efficient with peak operating efficiency at 90%.
An Under-Voltage-Lock-Output (UVLO) circuit monitors the Vin supply
voltage to prevent wrong logic controls. An internal 1.222V reference
provides low output voltage down to 1.22V for further applications. An
internal soft-start prevents the output voltage from overshoot as well as
limiting the input current. The controller’s over-current protection monitors
the output current by using the voltage drop across a current sensing
resistor. Additional under voltage protections monitor the voltage on FB pin
for short-circuit protections.
The UTC P1583 provides fast transient respond and requires very few
external devices for operation.
FEATURES
* 2.5A output current
* 380kHz frequency of operation
* 4V to 24V input voltage range
* 25μA shutdown supply current
* Output adjustable from 1.22 to 21V
* Frequency foldback at short circuit
* Thermal shutdown
* Under voltage lock output
* Current mode with low ESR output ceramic capacitors
* Up to 90% efficiency
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
P1583L-SH2-R
P1583G-SH2-R
Package
HSOP-8
Packing
Tape Reel
www.unisonic.com.tw
Copyright © 2013 Unisonic Technologies Co., Ltd
1 of 5
QW-R103-071.a
Free Datasheet http://www.Datasheet4U.com
1 page  
P1583
Preliminary
LINEAR INTEGRATED CIRCUIT
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 5
QW-R103-071.a
Free Datasheet http://www.Datasheet4U.com
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet P1583.PDF ] | |
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