LV5052V Datasheet, PDF (1/9 Pages) Sanyo Semicon Device – DC/DC Converter Controller

Ordering number : ENA1394
LV5052V
Bi-CMOS IC
DC/DC Converter Controller
Built-in 2-channels
http://onsemi.com
Overview
The LV5052V is a high efficiency DC/DC converter controller with 2-channels 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 2-channel
• Built-in input UVLO circuit, Over current detection function, soft-start/soft-stop function and Start-up delay circuit
• Built-in output voltage monitor function (Under voltage protection with power good and timer latch)
• 180 degree interleaving operation during 1-phase to 2-phase
• Synchronized operation is possible (Master-slave operation is possible when using plural devices)
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Supply voltage
Output peak current
Allowable power dissipation
VIN
IOUT
Pd max
Mounted on a specified board *1
18
V
±1.0
A
1.0
W
Operating temperature
Topr
-20 to 85
°C
Storage temperature
Tstg
-55 to +150
°C
Allowable terminal voltage *2
1 HDRV1,2, CBOOT1,2
25
V
2 Between HDRV1,2, CBOOT1,2
and SW1,2
6.5
V
3 VIN, ILIM1,2, RSNS1,2, SW1,2,
PGOOD1,2
18
V
4 VLIN5, VDD, LDRV1,2
5 COMP1,2, FB1,2, SS1,2,
UV_DELAY,TD1,2, CT, CLKO
6.5
V
VLIN5+0.3
V
*1: Specified board: 114.3mm × 76.1mm ×1.6mm, glass epoxy board.
*2: The Allowable Terminal Voltage, the SGND+PGND pin becomes a standard except for No.2 of the allowable terminal voltage about No.2 of the allowable
terminal voltage, the SW pin becomes a standard.
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating
Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.
Semiconductor Components Industries, LLC, 2013
August, 2013
12809 MS 20081209-S00004 No.A1394-1/9