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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
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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
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60111 SY/30310 SY 20100203-S00004 No.A1660-1/4
LV57331TT
Overview
The LV57331TT is a one-channel step-up switching regulator.
Features
Switch current limit : 1.0A
UVP
Internal switch ON resistance : 0.16
Shutdown circuit incorporated
The frequency can be switched.
Soft start circuit incorporated
Overheat protection
Specifications
Maximum Ratings
at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Power-supply voltage
VIN max
6.5
V
SW pin voltage *1
SW
18
V
Input pin
VIN
FB, VC, SHDNB, FSLCT, SS
6.5
V
Allowable power dissipation
Pd max
Mounted on a specified board *2
0.7
W
The maximum junction temperature
Tjmax
125
°C
Operating temperature
Topr
-40 to +85
°C
Storage temperature
Tstg
-55 to +150
°C
*1: Please the coil is not connected and do not exceed the terminal SW even the overshoot inclusion when the switching is done and momentarily.
*2: Specified board: 60.0mm
× 60.0mm × 1.6mm, glass epoxy board of 2-layer.
Recommended Operating Conditions
at Ta = 25
°C, GND=0V
Parameter
Symbol
Conditions
Ratings
Unit
Power-supply voltage
VIN
2.6 to 5.5
V
Maximum output voltage
VOUT max
15
V
Ordering number : ENA1660A
Monolithic Linear IC
1ch Step-up
Switching Regulator (Variable Type)