參數(shù)資料
型號： LV5052V
元件分類： 穩(wěn)壓器
英文描述： 1 A DUAL SWITCHING CONTROLLER, 1100 kHz SWITCHING FREQ-MAX, PDSO30
封裝： 0.275 INCH, SSOP-30
文件頁數(shù)： 2/5頁
文件大小： 105K
代理商： LV5052V
LV5052V
No.A1394-2/9
Continued from preceding page.
Parameter
Symbol
Conditions
Ratings
Unit
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
6.5
V
5
COMP1,2, FB1,2, SS1,2,
UV_DELAY,TD1,2, CT, CLKO
VLIN5+0.3
V
*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.
Recommended Operating Condition at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Supply voltage
VIN
9.4 to 16
V
Electrical Characteristics at Ta = 25
°C, VIN=12V, Unless especially specified.
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
System
Reference voltage for comparing
VREF
0.838
0.840
0.848
V
Supply current 1
ICC1
TD1,2 = 5V (Except for the Ciss charge)
4
6
8
mA
Supply current 2
ICC2
TD1,2 = 0V
0.8
1.4
2.0
mA
5V supply voltage
VLIN5
IVIN5 = 0 to 10mA
5.10
5.30
5.50
V
Over-current sense comparator offset
VCLOS
-5
+5
mV
Over-current sense reference current
source
ICL
VIN = 10 to 14V
75
85
95
A
Soft start source current
ISSSC
TD = 5V
-1.8
-3.5
-7.0
A
Soft start sink current
ISSSK
TD = 0V
0.2
1.0
mA
Soft start clamp voltage
VSST0
1.2
1.6
2.0
V
UV_DELAY source current
ISCUVD
UV_DELAY = 2V
-4.3
-8.6
-17.2
A
UV_DELAY sink current
ISKUVD
UV_DELAY = 2V
0.2
1.0
mA
UV_DELAY threshold voltage
VUVD
1.5
2.4
3.5
V
UV_DELAY operating voltage
VUVP
100% at VFBx = VREF
77
82
87
%
VUVP detection hysteresis
VUVP
4
%
Over-voltage detection
VOVP
100% at VFBx = VREF
113
118
123
%
Output discharge transistor ON resistance
VSWON
5
10
20
Output part
CBOOT leakage current
ICBOOT
VCBOOT = VSW + 6.5V
10
A
HDRVx LDRVx source current
ISCDRV
1.0
A
HDRVx LDRVx sink current
ISKDRV
1.0
A
HDRVx lower ON resistance
RHDRV
IOUT = 500mA
1.5
2.5
LDRVx lower ON resistance
RLDRV
IOUT = 500mA
1.5
2.5
Synchronous ON prevention dead time 1
Tdead1
LDRV OFF
→HDRV ON
50
ns
Synchronous ON prevention dead time 2
Tdead2
HDRV OFF
→LDRV ON
120
ns
Oscillator
Oscillation frequency
fosc
CT=130pF
280
330
380
kHz
Oscillation frequency range
foscop
250
1100
kHz
Maximum ON duty
DON max
CT=130pF
82
%
Minimum ON time
TON min
CT=130pF
100
ns
Upper-side voltage saw- tooth wave
VsawH
fOSC=300kHz
2.75
3.2
V
Lower-side voltage saw-tooth wave
VsawL
fOSC=300kHz
1
1.2
V
ON time difference between CH1 to CH2
Tdead
5
%
Continued on next page.
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