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LP8733 датащи(PDF) 67 Page - Texas Instruments

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номер детали LP8733
подробное описание детали  LP8733xx Dual High-Current Buck Converter and Dual Linear Regulator
PDF  86 Pages
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производитель  TI1 [Texas Instruments]
домашняя страница  http://www.ti.com
Logo TI1 - Texas Instruments

LP8733 датащи(HTML) 67 Page - Texas Instruments

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8.2.3 Application Curves
Measurements are done using typical application set up with connections shown in Section 8.2. Graphs may not
reflect the OTP default settings. Unless otherwise specified: V(VIN_Bx) = V(VIN_LDOx) = V(VANA) = 3.7 V, VOUT_Bx =
1 V, VOUT_LDOx = 1 V, TA = 25°C, L = 0.47 µH (TOKO DFE252012PD-R47M), COUT_BUCK = 22 µF / phase, and
CPOL_BUCK = 22 µF, COUT_LDO = 1 µF.
Output Current (A)
0.001
0.01
0.1
1
3
40
50
60
70
80
90
100
D003
Vin=5V, AUTO
Vin=3.3V, AUTO
Vin=5V, FPWM
Vin=3.3V, FPWM
VOUT = 1.8 V
Figure 8-4. Buck Efficiency in PFM/PWM and
Forced PWM Mode (Single-Phase Output)
Output Current (A)
0.001
0.01
0.1
1
6
40
50
60
70
80
90
100
D005
Vin=5V, AUTO
Vin=3.3V, AUTO
Vin=5V, FPWM
Vin=3.3V, FPWM
VOUT = 1.8 V
Figure 8-5. Buck Efficiency in PFM/PWM and
Forced PWM Mode (Dual-Phase Output)
Output Current (A)
0.001
0.01
0.1
1
3
40
50
60
70
80
90
100
D007
Vout=1V
Vout=1.8V
Vout=2.5V
VIN = 3.3 V
Figure 8-6. Buck Efficiency in Forced PWM Mode
(Single-Phase Output)
Output Current (A)
0.001
0.01
0.1
1
6
40
50
60
70
80
90
100
D009
Vout=1V
Vout=1.8V
Vout=2.5V
VIN = 3.3 V
Figure 8-7. Buck Efficiency in Forced PWM Mode
(Dual-Phase Output)
Output Current (A)
0.001
0.01
0.1
1
3
40
50
60
70
80
90
100
D011
Vout=1V
Vout=1.8V
Vout=2.5V
VIN = 5 V
Figure 8-8. Buck Efficiency in Forced PWM Mode
(Single-Phase Output)
Output Current (A)
0.001
0.01
0.1
1
6
40
50
60
70
80
90
100
D013
Vout=1V
Vout=1.8V
Vout=2.5V
VIN = 5 V
Figure 8-9. Buck Efficiency in Forced PWM Mode
(Dual-Phase Output)
www.ti.com
LP8733
SNVSBK2A – SEPTEMBER 2019 – REVISED JUNE 2021
Copyright © 2021 Texas Instruments Incorporated
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Product Folder Links: LP8733



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