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参数资料
| 型号： | LV5256GP-TE-L-E |
| 厂商： | ON Semiconductor |
| 文件页数： | 7/9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.
Pin No.
Pin Name
Description
Equivalent Circuit
13
SS
Capacitor connection pin for soft start. The capacitor
connected to this pin is charged by the internal 10 μ A
constant current. The interval during which this voltage
VIN
REG_O
10 μ A
reaches Vref is called the soft start period. The voltage is
10k Ω
clipped to approx. 2V after the soft start. This pin is pulled
13
500 Ω
down to the ground level when ONOFF/UVLO lock mode.
REG_O
1.25V
14
TRAC_IN
Reference voltage input pin for tracking power supply
operating. A voltage from 0V up to Vref applied to this pin
VIN
REG_O
serves as the reference voltage for determining the output
voltage. This pin must be connected to the SS pin when it
is not to be used.
14
1k Ω
REG_O
15
FB
Error amplifier output pin. Connect a phase compensation
REG_O
VIN
component between this pin and IN pin.
100 μ A
1.25V
400 Ω
1k Ω
15
16
IN
Output voltage input pin. Apply the resistor divided output
VIN
REG_O
voltage to this pin.
16
1k Ω
REG_O
SS TRAC_IN Vref
17
OCP_SEL
OCP detection voltage switching pin, A 100k Ω pull-down
resistor is provided between OCP_SEL and GND. The IC
VDD
enters the 0.8 times detection mode when this pin is
connected to GND or kept open and enters the 0.4 times
detection mode when the pin is connected to the REG_O
pin.
17
100k Ω
Continued on next page.
No.A1277-7/9
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