参数资料
型号: IRDC3831W
厂商: International Rectifier
文件页数: 5/32页
文件大小: 0K
描述: N-CHANNEL FET
标准包装: 1
系列: SupIRBuck™
主要目的: DC/DC,步降
输出及类型: 1,非隔离
输出电压: 0.75V
电流 - 输出: 8A
输入电压: 12V
稳压器拓扑结构: 降压
频率 - 开关: 400kHz
板类型: 完全填充
已供物品:
已用 IC / 零件: IR3831W
PD-97660
IR3831WMPbF
Recommended Operating Conditions
C
Symbol
V in
V cc
Boot to SW
V o
I o
Fs
T j
Definition
Input Voltage
Supply Voltage
Supply Voltage
Output Voltage
Output Current
Switching Frequency
Junction Temperature
Min
1.0
4.5
4.5
0.6
0
225
-40
Max
16
5.5
5.5
0.90*Vin
8
1650
125
Units
V
A
kHz
o
Electrical Specifications
Unless otherwise specified, these specification apply over 4.5V< V cc <5.5V, Vp=0.6V, V in =12V,
0 o C<T j < 125 o C. Typical values are specified at T a = 25 o C.
Parameter
Symbol
Test Condition
Min
TYP
MAX
Units
Power Loss
Power Loss
P loss
Vcc=5V, V in =12V, V o =0.75V, I o =8A,
Fs=400kHz, L=0.6uH, Note4
1.28
W
MOSFET R ds(on)
V Boot -V sw =5V, I D =10A, Tj= 25 C
Top Switch
R ds(on)_Top
o
17.8
26.5
V cc =5V, I D =10A, Tj= 25 C
Bottom Switch
R ds(on)_Bot
o
8.5
10.7
m Ω
Supply Current
V CC Supply Current (Standby)
V cc Supply Current (Dyn)
I CC(Standby)
I CC(Dyn)
SS=0V, No Switching, Enable low
SS=3V, Vcc=5V, Fs=500kHz
Enable high
12
500
μ A
mA
Under Voltage Lockout
V CC -Start-Threshold
V CC -Stop-Threshold
V CC _UVLO_Start
V CC _UVLO_Stop
Vcc Rising Trip Level
Vcc Falling Trip Level
3.95
3.65
4.15
3.85
4.35
4.05
Enable-Start-Threshold
Enable-Stop-Threshold
Enable leakage current
Enable_UVLO_Start
Enable_UVLO_Stop
Ien
Supply ramping up
Supply ramping down
Enable=3.3V
1.14
0.9
1.2
1.0
1.36
1.06
15
V
μ A
Rev 16.0
5
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