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| 型号： | LM5757TP |
| 元件分类： | 稳压器 |
| 英文描述： | 1.5 A SWITCHING REGULATOR, 360 kHz SWITCHING FREQ-MAX, ZFM5 |
| 文件页数： | 1/6页 |
| 文件大小： | 72K |
| 代理商： | LM5757TP |
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
'sproductsor
equipment.
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.
40809 MS 20090326-S00004 No.A1439-1/6
LA5757TP
Overview
The LA5757TP is a separately-excited step-down switching regulator (variable type).
Features
Output smoothing condenser can use a Low ESR condenser for the reliability improvement
High efficiency
Four external parts
Time-base generator (300kHz) incorporated
Current limiter incorporated
Thermal shutdown circuit incorporated
Soft start circuit incorporated
Specifications
Maximum Ratings at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Input voltage
VIN max
34
V
Output current
IO max
1.5
A
SW pin application reverse
VSW
-1
V
Allowable power dissipation
Pd max
Mounted on a specified board*
1.1
W
Operating temperature
Topr
-30 to +125
°C
Storage temperature
Tstg
-40 to +150
°C
* Specified board: 114.3mm
× 76.1mm × 1.6mm, glass epoxy board.
Recommended Operating Conditions at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Input voltage range
VIN
4.5 to 32
V
Ordering number : ENA1439
Monolithic Linear IC
Separately-excited Step-down
Switching Regulator (Variable Type)
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