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MCR03EZPFX1002 bảng dữ liệu(PDF) 5 Page - International Rectifier

tên linh kiện MCR03EZPFX1002
Giải thích chi tiết về linh kiện  HIGHLY INTEGRATED 14A SINGLE-INPUT VOLTAGE, SYNCHRONOUS BUCK REGULATOR
PDF  36 Pages
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nhà sản xuất  IRF [International Rectifier]
Trang chủ  http://www.irf.com
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5
IR3837MPbF
Rev 1.31
Recommended Operating Conditions
Symbol
Definition
Min
Max
Units
PVin
Input Voltage for power stage
1.5
16
Vin
Input Voltage for internal LDO *
7.0
16
Vcc/LDO_out
Supply Voltage *
4.5
6.5
Boot to SW
Supply Voltage
4.5
7.5
Vo
Output Voltage
0.6
0.9*Vin
V
Io
Output Current
0
14
A
Fs
Switching Frequency
225
1650
kHz
Tj
Junction Temperature
-40
125
oC
* Vcc/LDO_out can be connected to an external regulated supply (≈ 5V). If so, the Vin input should be
left unconnected.
PARAMETER
SYMBOL
TEST CONDITION
MIN
TYP
MAX
UNIT
POWER STAGE
Power Losses
Ploss
Vin=12V, Vo=1.8V, Io=14A,
Fs=600kHz, L=0.51uH, Note4
3
W
Top Switch
Rds(on)_Top
VBoot -Vsw =5.0V,
ID=14A,Tj=25C
12
16
Bottom Switch
Rds(on)_Bot
Vcc=5.0V, ID=14A
5.3
7
mΩ
Bootstrap Diode Forward
Voltage
I(Boot)= 30mA
180
260
470
mV
SW=0V, Enable=0V
6
SW leakage Current
Isw
SW=0V, Enable=high, Vp=0V
14
µA
SUPPLY CURRENT
Vin Supply Current (Standby)
Iin(Standby)
Enable low , No Switching,
400
µA
Vin Supply Current (Dyn)
Iin(Dyn)
Enable high, Fs=500kHz,
Vin=12V
17
mA
INTERNAL REGULATOR (LDO)
Output Voltage
IntVcc
Vin(min)=7.0V, Io=0-50mA,
Cload=2.2uF
4.7
5.2
5.7
V
IntVcc Dropout
IntVcc_drop
Io=50mA, Cload=2.2uF
50
150
mV
Short Circuit Current
Ishort
70
mA
INTERNAL DIGITAL SOFT START
Soft Start Clock Frequency
Clk(SS)
Note4
168
200
254
kHz
Soft Start Ramp Rate
Ramp(SS)
0.2
mV/us
Electrical Specifications
Unless otherwise specified, these specification apply over, 7.0V<V
in=PVin<16V, Vref=0.6V
in 0oC<T
j< 125
oC. Typical values are specified at T
a = 25
oC.



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