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PDF LV5068V Data sheet ( Hoja de datos )
| Número de pieza | LV5068V | |
| Descripción | Low power consumption and high efficiency Step-down Switching Regulator Controller | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LV5068V (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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Ordering number : ENA1875
LV5068V
Bi-CMOS IC
Low power consumption and
high efficiency Step-down
Switching Regulator
Controller
http://onsemi.com
Overview
LV5068V is 1ch step-down switching regulator. The operation current is about 80μA, and low power consumption is
achieved.
Functions
• 1ch SBD rectification controller IC
• Maximum value of light load mode current is 80μA.
• Built-in OCP circuit with P-by-P method
• When P-by-P is generated continuously, it shifts to the HICCUP operation.
• If connect C-HICCUP to GND pin, then latch-off when over current.
• The oscillatory frequency can be set by the external pin. The oscillatory frequency is 300 kHz to 2.2MHz
• Built-in UVLO, TSD
• Synchronous driving with external signal
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Input voltage
Allowable pin voltage
VIN max
PDR,HDRV,RSNS,
ILIM,EN,PG
VIN-PDR
REF
SS,FB,COMP,RT
C-HICCUP,SYNC
Allowable power dissipation
Pd max
Specified substrate *1
Operating temperature
Topr
Storage temperature
Tstg
*1: Specified substrate 114.3mm×76.1mm×1.6mm3 glass-epoxy
Ratings
45
VIN
6
6
REF
Unit
V
V
V
V
V
0.74
-40 to +85
-55 to +150
W
˚C
˚C
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
N1010 SY 20101102-S00002 No.A1875-1/6
1 page  
LV5068V
Continued from preceding page.
Pin
Pin name
No.
6 HDRV
Descriptions
The external high-side MOSFET gate drive pin.
7 PDR
Gate drive voltage of the external Pch MOSFET.
Meanwhile, the bypass capacitor is connected between VIN
and this pin.
8 GND
Ground Pin.
Ground pin voltage is reference voltage.
9 SYNC
Pin of using combined of external synchronous signal input pin
10 RT
Oscillation frequency setting pin.
Resistor is connected between this pin and GND.
11 C-HICCUP
It is capacitor connection pin for setting re-startup cycle in
HICCUP mode.
If connect it to GND pin, then latch-off when over current.
12 SS
Capacitor connection pin for soft start.
About 2μA current charges the soft start capacitor.
13 NC
NC pin.
Equivalent circuit
VIN
HDRV
PDR
VIN
VIN
GND
VIN
PDR
GND
SYNC
GND
VIN
RT
GND
VIN
C-HICCUP
GND
VIN
SS
GND
Continued on next page.
No.A1875-5/6
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet LV5068V.PDF ] | |
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