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FDMF6821A Datasheet(PDF) 9 Page - Fairchild Semiconductor

Part # FDMF6821A
Description  Extra-Small, High-Performance, High-Frequency DrMOS Module
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Manufacturer  FAIRCHILD [Fairchild Semiconductor]
Direct Link  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

FDMF6821A Datasheet(HTML) 9 Page - Fairchild Semiconductor

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© 2012 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FDMF6821A • Rev. 1.0.0
9
Typical Performance Characteristics
Test Conditions: VIN=12 V, VOUT=1 V, VCIN=5 V, VDRV=5 V, LOUT=250 nH, TA=25°C, and natural convection cooling,
unless otherwise specified.
Figure 12.
Power Loss vs. Output Inductor
Figure 13.
Driver Supply Current vs. Switching
Frequency
Figure 14.
Driver Supply Current vs. Driver
Supply Voltage
Figure 15.
Driver Supply Current vs. Output Current
Figure 16.
UVLO Threshold vs. Temperature
Figure 17.
PWM Threshold vs. Driver Supply Voltage
0.975
0.980
0.985
0.990
0.995
1.000
1.005
200
250
300
350
400
450
500
Output Inductor, LOUT (nH)
VIN = 12V, VDRV & VCIN = 5V, FSW = 300kHz, VOUT = 1V, IOUT = 30A
10
20
30
40
50
60
70
100
200
300
400
500
600
700
800
900 1000 1100
Module Switching Frequency, FSW (kHz)
VIN = 12V, VDRV & VCIN = 5V, VOUT = 1V, IOUT = 0A
14
16
18
20
22
24
26
4.0
4.5
5.0
5.5
6.0
Driver Supply Voltage, VDRV & VCIN (V)
VIN = 12V, VOUT = 1V, FSW = 300kHz, IOUT = 0A
0.97
0.98
0.99
1.00
1.01
1.02
1.03
0
5
10
15
20
25
30
35
40
45
50
55
Module Output Current, IOUT (A)
VIN = 12V, VDRV & VCIN = 5V, VOUT = 1V
FSW = 300kHz
FSW = 1000kHz
2.6
2.7
2.8
2.9
3.0
3.1
3.2
-55
0
25
55
100
125
150
Driver IC Junction Temperature, TJ (oC)
UVLOUP
UVLODN
0.5
1.0
1.5
2.0
2.5
3.0
4.50
4.75
5.00
5.25
5.50
Driver IC Supply Voltage, VCIN (V)
VTRI_HI
VIH_PWM
TA = 25°C
VTRI_LO
VIL_PWM
VHIZ_PWM


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