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PDF LV5813TT Data sheet ( Hoja de datos )
| Número de pieza | LV5813TT | |
| Descripción | Step-down Switching Regulator | |
| Fabricantes | Sanyo Semicon Device | |
| Logotipo |  |
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Ordering number : ENA1761A
LV5813TT
Bi-CMOS IC
Step-down Switching Regulator
Overview
LV5813TT is 1ch step down switching regulator. 0.25Ω FET is incorporated on the upper side to achieve high-efficiency
operation for large output current. Compact-package MSOP8 (150mil) employed. Current mode control type, with
superior load current response and easy phase compensation. ON/OFF pin, allowing the standby mode with the current
drain of 90μA or less. Pulse-by-pulse over-current protection and overheat protection available for protection of load
devices. Soft start pin to be provided with a capacitance for soft start.
Functions
• 1.5A 1ch step-down switching regulator
• Wide input dynamic range (4.75V to 18V)
• High efficiency : 90% (VIN = 12V, VOUT = 5V, IOUT = 1A)
• Compact package : MSOP8 (150mil)
• Standby mode
• Over-current protection
• Thermal shutdown
• Fixed frequency : 370kHz
• Soft start
• Reference voltage : 0.8V
Applications
• LCD TV
• Blu-ray Disc Player/Recorder
• Pre regulator
• PDP TV
• For χDSL power supply
• Amusement
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer's products or
equipment.
72110 SY/60210 SY PC 20100511-S00007 No.A1761-1/9
Datasheet pdf - http://www.DataSheet4U.net/
1 page  
www.DataSheet.co.kr
LV5813TT
Continued from preceding page.
Pin No. Pin name
Description
Equivalent Circuit
5 FB
Feedback pin
Sets the output voltage by means of split resistor
in the section of the output voltage VOUT - FB -
GND. VOUT setting is made as calculated
below :
VOUT
=
Vref
×
{1+
(R1
+ R10)
R3
}
VIN
Internal regulation
line
5μA
Vref = 0.8V
Example : 3.3V output voltage
(See block diagram and sample application
circuit)
VOUT
=
0.8
×
{1+
(27k + 4.3k)
10k
}
FB
SS
VREF
0.8V
= 3.304V
6 COMP
Phase compensation pin
Connects with the phase compensation external
capacitance and resistance of DC/DC converter
close loop.
VIN
Internal regulation line
COMP
Short
protection
circuit
7 EN
Enable pin
Converter enabled when set to the HIGH voltage
and disabled when connected to GND.
8 SS
Soft start pin
Set the soft start time by means of the built-in 5μA
source voltage and external soft start capacity
Css can be set as follows :
C6
=
5μA
×
Tss
Vref
Where, Tss is soft start time and Vref is the
reference voltage.
Example : 2.4ms soft start time achieved
Css
=
5μA
×
2.4ms
0.8V
=
0.015μF
VIN
EN
No.A1761-5/9
Datasheet pdf - http://www.DataSheet4U.net/
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet LV5813TT.PDF ] | |
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