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LP3906 数据表(PDF) 13 Page - Texas Instruments

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部件名 LP3906
功能描述  Dual High-Current Step-Down DC/DC and Dual Linear Regulator with I2C ompatible
PDF  47 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

LP3906 数据表(HTML) 13 Page - Texas Instruments

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10
-2
10
-1
10
0
10
1
10
2
10
3
10
4
OUTPUT CURRENT (mA)
40
50
60
70
80
90
100
VIN = 5.5V
VIN = 4.3V
10
-2
10
-1
10
0
10
1
10
2
10
3
10
4
OUTPUT CURRENT (mA)
40
50
60
70
80
90
100
VIN = 5.5V
VIN = 4.3V
10
-2
10
-1
10
0
10
1
10
2
10
3
10
4
OUTPUT CURRENT (mA)
0
10
20
30
40
50
60
70
80
90
100
VIN = 5.5V
VIN = 4.3V
10
-2
10
-1
10
0
10
1
10
2
10
3
10
4
OUTPUT CURRENT (mA)
0
10
20
30
40
50
60
70
80
90
100
VIN = 5.5V
VIN = 4.3V
10
-3 10-2 10-1 100 101 102 103 104
OUTPUT CURRENT (mA)
30
40
50
60
70
80
90
100
VIN = 5.5V
VIN = 3.6V
VIN = 2.8V
10
-2
10
-1
10
0
10
1
10
2
10
3
10
4
OUTPUT CURRENT (mA)
30
40
50
60
70
80
90
100
VIN = 2.8V
VIN = 5.5V
VIN = 3.6V
LP3906
www.ti.com
SNVS456M – AUGUST 2006 – REVISED MAY 2013
TYPICAL PERFORMANCE CHARACTERISTICS — BUCK (continued)
TA = 25°C unless otherwise noted
Buck 1 Efficiency
Buck 1 Efficiency
vs
vs
Output Current
Output Current
(PFM to PWM mode, Vout =1.2V, L= 2.2µH)
(PFM to PWM mode, Vout =2.0V, L= 2.2µH)
Figure 18.
Figure 19.
Buck 2 Efficiency
Buck 2 Efficiency
vs
vs
Output Current
Output Current
(Forced PWM Mode, Vout =1.8V, L= 2.2µH)
(Forced PWM Mode, Vout =3.3V, L= 2.2µH)
Figure 20.
Figure 21.
Buck 2 Efficiency
Buck 2 Efficiency
vs
vs
Output Current
Output Current
(PFM to PWM Mode, Vout =1.8V, L= 2.2µH)
(PFM to PWM Mode, Vout =3.3V, L= 2.2µH)
Figure 22.
Figure 23.
Copyright © 2006–2013, Texas Instruments Incorporated
Submit Documentation Feedback
13
Product Folder Links: LP3906



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