IR3897 IRF [International Rectifier], IR3897 Datasheet - Page 11
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IR3897
Manufacturer Part Number
IR3897
Description
4A HIGHLY INTEGRATED SUPLRBUCK
Manufacturer
IRF [International Rectifier]
Datasheet
1.IR3897.pdf
(45 pages)
Available stocks
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Manufacturer
Quantity
Price
Company:
Part Number:
IR3897MTR1PBF
Manufacturer:
IR
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Company:
Part Number:
IR3897MTRPBF
Manufacturer:
INFINEON
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TYPICAL EFFICIENCY AND POWER LOSS CURVES
PVin = 12V, Vcc = External 5V, Io = 0A‐4A, Fs = 600KHz, Room Temperature, No Air Flow. Note that the efficiency and power
loss curves include the losses of IR3897, the inductor losses and the losses of the input and output capacitors. The table
below shows the inductors used for each of the output voltages in the efficiency measurement.
VOUT (V)
11
1.0
1.2
1.8
3.3
5
AUGUST 08, 2012 |DATA SHEET | Rev 3.3
98
96
94
92
90
88
86
84
82
80
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0.4
0.4
0.8
0.8
LOUT (µH)
Single‐Input Voltage, Synchronous Buck Regulator
1.5
1.5
2.2
3.3
3.3
1.2
1.2
1.0V
1.0V
1.6
1.6
7443340220 (Wurth Elektronik)
7443340330 (Wurth Elektronik)
7443340330 (Wurth Elektronik)
- 11 -
1.2V
PCMB065T-1R5MS (Cyntec)
PCMB065T-1R5MS (Cyntec)
1.2V
Load Current (A)
Load Current (A)
4A Highly Integrated SupIRBuck
2
2
1.8V
1.8V
2.4
2.4
P/N
3.3V
3.3V
2.8
2.8
5.0V
5.0V
3.2
3.2
3.6
3.6
TM
4
4
DCR (mΩ)
6.7
6.7
4.4
6.5
6.5
IR3897
PD‐97663