参数资料
型号: LV5876MX-TLM-H
厂商: ON Semiconductor
文件页数: 2/7页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 2A MFP8
标准包装: 1,000
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 可调至 0.8V
输入电压: 4.75 V ~ 18 V
PWM 型: 电流模式
频率 - 开关: 950kHz
电流 - 输出: 2A
同步整流器:
工作温度: -20°C ~ 80°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.173",4.40mm 宽)裸露焊盘
包装: 带卷 (TR)
供应商设备封装: 8-MFP
LV5876MX
Recommended Operating Conditions at Ta = 25 ° C
Parameter
VIN pin voltage
BOOT pin voltage
SW pin voltage
BOOT pin-SW pin voltage
EN voltage
FB, COMP, SS pin voltage
Symbol
VIN
VBT
VSW
VBS-SW
VEN
VFSO
Conditions
Ratings
4.75 to 18
-0.3 to 23
-0.4 to VIN
6.5
18
6
Unit
V
V
V
V
V
V
Electrical Characteristics at Ta = 25 ° C, VIN = 12V
Parameter
IC current drain at standby
IC current drain in operation
Efficiency
Reference voltage
FB pin bias current
High-side ON resistance
Symbol
ICC1
ICC2
Effcy
Vref
Iref
RonH
Conditions
EN=0V
EN=5v, FB=1V
VIN=12V, IOUT=1A, Vo=5V, Design target *2
VIN=4.75V to 28V
FB=0.8V
BOOT=5V, IOUT=1A
min
-2%
Ratings
typ
90
2.3
88
0.8
20
0.25
max
+2%
200
Unit
μ A
mA
%
V
nA
Ω
Low-side ON resistance
RonL
5
Ω
Oscillation frequency
Oscillatory frequency when
fOSC
fOSCS
760
255
950
340
1140
425
kHz
kHz
short-circuit is protected
EN high-threshold voltage
EN low-threshold voltage
Maximum ON DUTY
VENH
VENL
D max
0.9
0.7
1.8
1.35
80
2.7
2.0
V
V
%
SW Peak Current limit 1
SW Peak Current limit 2
SW Peak Current limit 3
Thermal shutdown temperature
Thermal shutdown temperature
Icl1
Icl2
Icl3
Ttsd
Dtsd
VIN=12V, VOUT=1.2V, L=2.2 μ H
VIN=12V, VOUT=3.3V, L=2.2 μ H
VIN=12V, VOUT=5V, L=2.2 μ H
*Design guarantee *3
*Design guarantee *3
3.1
2.8
2.5
160
40
5.7
5.4
5.1
A
A
A
° C
° C
hysteresis
Soft start current
UVLO threshold voltage
ISS
VUVLO
SS=0V
VIN Rising
3
3.9
5
4.2
7
4.5
μ A
V
UVLO hysteresis
VHYS
0.2
V
*2: Reference value (not tested IC unit)
*3: Design guarantee (value guaranteed by design and not tested IC unit)
Pin Assignment
BOOT 1
VIN 2
SW 3
GND 4
Top view
8 SS
7 EN
6 COMP
5 FB
No.A1857-2/7
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