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TPS746 Datasheet(PDF) 13 Page - Texas Instruments

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Part # TPS746
Description  TPS746-Q1 1-A LDO With Power-Good in Small Wettable Flank WSON Packages
PDF  45 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS746 Datasheet(HTML) 13 Page - Texas Instruments

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Frequency (Hz)
0.005
0.01
0.02
0.05
0.1
0.2
0.5
1
2
5
10
20
20
10
100
1k
10k
100k
1M
10M
IOUT= 10mA, 159PVRMS
IOUT= 100mA, 160PVRMS
IOUT= 500mA, 160PVRMS
Frequency (Hz)
0.005
0.01
0.02
0.05
0.1
0.2
0.5
1
2
5
10
20
20
10
100
1k
10k
100k
1M
10M
CFF = 0 nF, 160 PVRMS
CFF = 1 nF, 108 PVRMS
CFF = 10 nF, 74 PVRMS
CFF = 100 nF, 44 PVRMS
Frequency (Hz)
-10
0
10
20
30
40
50
60
70
80
90
10
100
1k
10k
100k
1M
10M
ILOAD = 10 mA
ILOAD = 100 mA
ILOAD = 250 mA
ILOAD = 500 mA
ILOAD = 1 A
Frequency (Hz)
0.005
0.01
0.02
0.05
0.1
0.2
0.5
1
2
5
10
20
20
10
100
1k
10k
100k
1M
10M
IOUT= 100mA, 170PVRMS
IOUT= 500mA, 169PVRMS
IOUT= 1A, 160PVRMS
Frequency (Hz)
0
10
20
30
40
50
60
70
80
90
10
100
1k
10k
100k
1M
10M
COUT = 1 PF
COUT = 2.2 PF
COUT = 4.7 PF
COUT = 47 PF
Frequency (Hz)
0
10
20
30
40
50
60
70
80
90
10
100
1k
10k
100k
1M
10M
CFF = 0 nF
CFF = 1 nF
CFF = 10 nF
CFF = 100 nF
13
TPS746-Q1
www.ti.com
SBVS358A – JUNE 2018 – REVISED OCTOBER 2019
Product Folder Links: TPS746-Q1
Submit Documentation Feedback
Copyright © 2018–2019, Texas Instruments Incorporated
Typical Characteristics (continued)
at operating temperature range TJ = 25°C, VIN = VOUT(NOM) + 0.5 V or 1.5 V (whichever is greater), IOUT = 1 mA, VEN = VIN, and
CIN = COUT = 1 μF (unless otherwise noted)
VIN = 3.8 V, VOUT = 3.3 V, IOUT = 500 mA
Figure 37. PSRR vs Frequency and COUT
VIN = 3.8 V, VOUT = 3.3 V, IOUT = 500 mA
Figure 38. PSRR vs Frequency and CFF
VIN = 3.8 V, VOUT = 3.3 V, COUT = 2.2 µF
Figure 39. PSRR vs Frequency and ILOAD
VIN = 3.8 V, VOUT = 3.3 V, COUT = 4.7 µF,
VRMS BW = 10 Hz to 100 kHz
Figure 40. Output Spectral Noise Density vs
Frequency and IOUT
VIN = 3.8 V, VOUT = 3.3 V, COUT = 2.2 µF,
VRMS BW = 10 Hz to 100 kHz
Figure 41. Output Spectral Noise Density vs
Frequency and IOUT
VIN = 3.8 V, VOUT = 3.3 V, IOUT = 500 mA, COUT = 2.2 µF,
VRMS BW = 10 Hz to 100 kHz
Figure 42. Output Spectral Noise Density vs
Frequency and CFF



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