
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.
D2408 MS PC 20081208-S00002 No.A1376-1/6
LV5749V
Overview
The LV5749V is a 1-channel step-down switching regulator.
Functions
1 channel step-down switching regulator controller.
Load-independent soft start circuit.
ON/OFF function.
Built-in pulse-by-pulse OCP circuit. It is detected by using ON resistance of an external MOS.
Synchronous rectification.
Current mode control.
Synchronous drive by external signal.
Specifications
Absolute Maximum Ratings at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
supply voltage
VIN max
45
V
Allowable Power dissipation
Pd max
Mounted on a specified board. *
0.74
W
Operating temperature
Topr
-40 to +85
°C
Storage temperature
Tstg
-55 to +150
°C
* : When mounted on the specified printed circuit board (114.3 × 76.1 × 1.6mm), glass epoxy
Recommended Operating Range at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Supply voltage range
VIN
8.5 to 42
V
Error amplifier input voltage
0 to 1.6
V
Bi-CMOS LSI
1-channel Step-down Switching
Regulator
Ordering number : ENA1376