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参数资料
| 型号： | LLV5256GP |
| 元件分类： | 稳压器 |
| 英文描述： | 0.6 A SWITCHING REGULATOR, 1200 kHz SWITCHING FREQ-MAX, QCC20 |
| 封装： | 3 X 3 MM, VCT-20 |
| 文件页数： | 3/9页 |
| 文件大小： | 142K |
| 代理商： | LLV5256GP |
LV5256GP
No.A1277-3/9
Continued from preceding page.
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
Therml protection, UVLO
Thermal protection operating
temperature
Tot
Design guarantee value *2
175
°C
Thermal protection hysteresis
Dot
Design guarantee value *2
20
°C
UVLO lock release voltage 1
VuvloH
REG_O monitored
2.8
V
UVLO lock voltage 1
VuvloL
REG_O monitored
2.5
V
UVLO lock release voltage 2
VuvloH2
VIN pin voltage
3.8
V
UVLO lock voltage 2
VuvloL2
VIN pin voltage
3.5
V
Oscillator
Oscillation frequency
F
RT = 100k
0.8
1
1.2
MHz
Oscillation frequency range
R_F
0.3
1.5
MHz
Triangular wave lower-side
threshold value
VtriL
RT = 100k
0.5
V
Triangular wave upper-side
threshold value
VtriH
RT = 100k
1.0
V
Power supply pin block
Ivin1
VIN pin, when converter is in 1MHz operation
mode.
2
4
mA
Ivin2
VIN pin, when in ONOFF stop mode.
1.0
A
Current drain
Ivdd1
VDD pin, when in ONOFF stop mode.
1.0
A
Vout-5V Regulator
Output voltage
Voutm5
Vout-5V regulator, VOUT = 10.0V
VOUT-4.5
VOUT-5
VOUT-5.5
V
Drooping current
Ivoutm5
Vout-5V regulator
20
mA
Internal 3.3V Regulator
Output voltage
Vreg_o
Ireg_o = 2.0mA
3.0
3.3
3.6
V
Drooping current
Ireg_o
Vreg_o = 2V, VIN = 5V
10
mA
Output characteristics
Main switch on resistance (Pch)
RonH
VIN = 5V
0.7
Main switch on resistance (Nch)
RonL
VIN = 5V
0.7
Through current prevention dead
time
Tdead
25
ns
Maximum on-duty (step-down)
DMAX1
RT = 100k
100
%
Maximum on-duty (step-up)
DMAX2
RT = 100k
85
%
Converter characteristics
Step-down
η1
VIN = 5.0V, V = 4.6V, IO = 200mA
93
%
Efficiency
Step-up
η2
VIN = 5.0V, VOUT1 = 6.6V, IO = 200mA
93
%
Step-down
V1/VIN
VIN = 4.5 to 8.6V, V1 = 4.6V, IO = 200mA
0
%
Line regulation
Step-up
VOUT1/VIN VIN = 4.5 to 5.5V, VOUT1 = 6.6V, IO = 200mA
0
%
Step-down
V1/IO
VIN = 8.4V, V1 = 4.6V, IO = 0 to 200mA
0
Load regulation
Step-up
VOUT1/IO
VIN = 5.0, VOUT1 = 6.6V, IO = 200mA
0
*1 IN pin voltage is the detection point. The lowest voltage among Vref, TRAC_IN, and SS is used.
*2 Design guarantee value, and no measurement is performed.
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