LV5050NV Datasheet, PDF (1/7 Pages) Sanyo Semicon Device – Bi-CMOS IC DC / DC Converter Controller

Ordering number : ENA1159
Bi-CMOS IC
LV5050NV ^{DC / DC Converter Controller}
Overview
The LV5050NV is a high efficiency DC/DC converter controller IC adopting a synchronous rectifying system.
Incorporating numerous functions on a single chip with easy external setting, it can be used for a wide
variety of applications. This device is optimal for use in internal power supply systems which are used in electronic
devices, LCD-TVs, DVD recorders, etc.
Functions
• Step-down DC/DC converter controller with 1-channel
• Input UVLO circuit,
• Built-in over current detection function
• Built-in soft-start/soft-stop function
• Built-in start-up delay circuit
• Built-in output voltage monitor function (Under voltage protection with power good and timer latch)
• Synchronized operation is possible between different devices.
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Symbol
Supply voltage
Allowable power dissipation
VIN
Pd max
*
Junction temperature
Tj
Operating temperature
Topr
Storage temperature
Tstg
*: Mounted on a specified: 114.3mm × 76.1mm ×1.6 mm, glass epoxy board.
Conditions
Ratings
Unit
18 V
800 mW
150 °C
-20 to 85 °C
-55 to +150 °C
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"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
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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's products or
equipment.
40208 MS 20080356-S00007 No.A1159-1/7