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LV5044V

ON Semiconductor
Part Number LV5044V
Manufacturer ON Semiconductor
Description DC-DC Converter Controller
Published Jan 20, 2016
Detailed Description Ordering number : ENA0534 LV5044V Bi-CMOS IC 2ch step-down circuit DC-DC Converter Controller http://onsemi.com Overv...
Datasheet PDF File LV5044V PDF File

LV5044V
LV5044V

Overview
Ordering number : ENA0534 LV5044V Bi-CMOS IC 2ch step-down circuit DC-DC Converter Controller http://onsemi.
com Overview The LV5044V is a high efficiency, 2-channel, step-down, 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.
The device is optimal for use in multi-output power supply systems which are used in LCD-TVs, DVD recorders, game machines, high-end office products, etc.
Features • Provides dual step-down DC-DC converter controller circuits integrated on the same chip.
• Provides an input UVLO circuit, an overcurrent detection function, an overtemperature detection function, soft start/soft stop functions, and a startup delay circuit.
• Output voltage monitoring functions (power good as well as OVP and UVP with timer latch functions) • 180° interleaved operation between phase 1 and phase 2 (supports multiphase drive in 2-phase parallel operation mode).
• Supports synchronous operation between different devices (supports master/slave operation when multiple devices are used).
Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Symbol Conditions Ratings Supply voltage Peak output current Allowable power dissipation VIN IOUT Pd max *1 18 ±1.
0 1 Operating temperature Topr -20 to +85 Storage temperature Tstg -55 to +150 Allowable pin voltage *2 1 HDRV1,2 18 CBOOT1,2 2 HDRV1,2 ,CBOOT1,2 6.
5 to SW 3 VIN, ILIM1,2 18 RSNS1,2, SW1,2 PGOOD1,2 4 VLIN5 6.
5 VDD, LDRV1,2 5 COMP1,2, FB1,2 VLIN5+0.
3 SS1,2, UV_DELAY TD1,2, CT CLKO *1 Board size: 114.
3×76.
1×1.
6mm3, glass epoxy board.
*2 Allowable pin voltages are referenced to the SGND and PGND pins, excluding No.
2.
No.
2 Voltages are referenced to the SW pin.
Unit V A W °C °C V V V V V Stresses exceeding Maximum Ratings may damage the device.
Maximum Ratings are stress ratings only.
Functional operation above the Recommended Ope...


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