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LA5744TP の電気的特性と機能

LA5744TPのメーカーはSanyo Semicon Deviceです、この部品の機能は「Monolithic Linear IC Separately-Excited Step-Down Switching Regulator」です。


製品の詳細 ( Datasheet PDF )

部品番号 LA5744TP
部品説明 Monolithic Linear IC Separately-Excited Step-Down Switching Regulator
メーカ Sanyo Semicon Device
ロゴ Sanyo Semicon Device ロゴ 




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LA5744TP Datasheet, LA5744TP PDF,ピン配置, 機能
Ordering number : ENA0647A
LA5744TP
Monolithic Linear IC
Separately-Excited Step-Down
Switching Regulator
(Variable Type)
www.DataSheetO4Uv.ceomrview
The LA5744TP is a separately-excited step-down switching regulator (variable type).
Functions
High efficiency.
Time-base generator (300kHz) incorporated.
Current limiter incorporated.
Thermal shutdown circuit incorporated.
Soft start circuit incorporated.
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Input voltage
Maximum output current
SW pin application reverse voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VIN
IO max
VSW
Pd max
Topr
Tstg
* Specified circuit board : 76.1×114.3×1.6mm3, glass epoxy.
Conditions
Mounted on a circuit board.*
Recommended Operating Conditions at Ta = 25°C
Parameter
Input voltage range
Symbol
VIN
Conditions
Ratings
30
2
-1
1.1
-30 to +125
-40 to +150
Ratings
4.5 to 28
Unit
V
A
V
W
°C
°C
Unit
V
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.
42007 MS PC 20070420-S00001 / 11707 MS PC 20061204-S00012 No.A0647-1/5

1 Page





LA5744TP pdf, ピン配列
Block Diagram
LA5744TP
www.DataSheet4U.com
VIN 1
Constant
current
circuit
Reg.
OCP
OSC
Reset
Comp.
Drive
TSD
ON/OFF Comp.
0.4V
Amp.
53
SS GND
VREF
2 SWOUT
4 VOS
Application Circuit Example
VIN
SWOUT
L1
22µH
C1
470µF
/50V
LA5744TP
SS GND
C3
1µF
VOS
D1
SBD
R2
R1
C2
390µF
Notes :
1. C3 is for the soft start function. Delete C3 and keep the SS pin open when the soft start function is not necessary.
2. In some cases, the output may not turn on if power is applied when a load is connected. If this is a problem, increase the value of
the inductor.
No.A0647-3/5


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部品番号部品説明メーカ
LA5744TP

Monolithic Linear IC Separately-Excited Step-Down Switching Regulator

Sanyo Semicon Device
Sanyo Semicon Device


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