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参数资料
| 型号： | LV5256GP-TE-L-E |
| 厂商： | ON Semiconductor |
| 文件页数： | 3/9页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK BOOST SYNC ADJ VCT20 |
| 标准包装： | 2,000 |
| 类型： | 降压（降压），升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 1 V ~ 14 V |
| 输入电压： | 4.5 V ~ 10 V |
| 频率 - 开关： | 300kHz ~ 1.5MHz |
| 电流 - 输出： | 600mA |
| 同步整流器： | 是 |
| 工作温度： | -20°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-WFQFN |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 20-VCT（3x3） |
LV5256GP
Continued from preceding page.
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
Therml protection, UVLO
Thermal protection operating
Tot
Design guarantee value *2
175
° C
temperature
Thermal protection hysteresis
UVLO lock release voltage 1
UVLO lock voltage 1
UVLO lock release voltage 2
UVLO lock voltage 2
Dot
VuvloH
VuvloL
VuvloH2
VuvloL2
Design guarantee value *2
REG_O monitored
REG_O monitored
VIN pin voltage
VIN pin voltage
20
2.8
2.5
3.8
3.5
° C
V
V
V
V
Oscillator
Oscillation frequency
F
RT = 100k Ω
0.8
1
1.2
MHz
Oscillation frequency range
Triangular wave lower-side
R_F
VtriL
RT = 100k Ω
0.3
0.5
1.5
MHz
V
threshold value
Triangular wave upper-side
VtriH
RT = 100k Ω
1.0
V
threshold value
Power supply pin block
Current drain
Ivin1
VIN pin, when converter is in 1MHz operation
2
4
mA
mode.
Ivin2
Ivdd1
VIN pin, when in ONOFF stop mode.
VDD pin, when in ONOFF stop mode.
1.0
1.0
μ A
μ A
Vout-5V Regulator
Output voltage
Drooping current
Voutm5
Ivoutm5
Vout-5V regulator, VOUT = 10.0V
Vout-5V regulator
VOUT-4.5
VOUT-5
20
VOUT-5.5
V
mA
Internal 3.3V Regulator
Output voltage
Drooping current
Vreg_o
Ireg_o
Ireg_o = 2.0mA
Vreg_o = 2V, VIN = 5V
3.0
3.3
10
3.6
V
mA
Output characteristics
Main switch on resistance (Pch)
Main switch on resistance (Nch)
Through current prevention dead
RonH
RonL
Tdead
VIN = 5V
VIN = 5V
0.7
0.7
25
Ω
Ω
ns
time
Maximum on-duty (step-down)
Maximum on-duty (step-up)
DMAX1
DMAX2
RT = 100k Ω
RT = 100k Ω
100
85
%
%
Converter characteristics
Efficiency
Line regulation
Load regulation
Step-down
Step-up
Step-down
Step-up
Step-down
Step-up
η 1
η 2
Δ V1/VIN
Δ VOUT1/VIN
Δ V1/IO
Δ VOUT1/IO
VIN = 5.0V, V = 4.6V, IO = 200mA
VIN = 5.0V, VOUT1 = 6.6V, IO = 200mA
VIN = 4.5 to 8.6V, V1 = 4.6V, IO = 200mA
VIN = 4.5 to 5.5V, VOUT1 = 6.6V, IO = 200mA
VIN = 8.4V, V1 = 4.6V, IO = 0 to 200mA
VIN = 5.0, VOUT1 = 6.6V, IO = 200mA
0
0
0
0
93
93
%
%
%
%
*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.
No.A1277-3/9
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