www.ti.com |
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9.2.3.5 VOUT = 2.5 V |
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70 |
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60 |
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Efficiency |
50 |
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VIN = 5 V PFM |
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D005 |
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MODE = High for FPWM Mode 2.5-V Adjustable Output MODE = Low for Auto PFM Mode
Figure 63. Efficiency
VOUT Ripple
(5 mV/DIV)
Time (1 µs/DIV) 20MHz BW
2.5-V Adjustable Output |
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Figure 65. Output Ripple 20-MHz BW |
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2.6 |
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2.55 |
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(V) |
2.5 |
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Voltage |
2.45 |
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VIN = 5 V PFM |
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Output |
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VIN = 5 V FPWM |
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2.4 |
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VIN = 12 V PFM |
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VIN = 12 V FPWM |
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VIN = 24 V PFM |
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2.35 |
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VIN = 24 V FPWM |
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VIN = 36 V PFM |
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VIN = 36 V FPWM |
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2.3 |
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0.05 |
0.1 |
0.15 |
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0.25 |
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0.35 |
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0.45 |
0.5 |
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Output Current (A) |
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D007 |
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Figure 67. Line and Load Regulation
LMZM23600
SNVSB53B –FEBRUARY 2018–REVISED MAY 2019
IOUT
(200 mA/DIV)
VOUT
(20 mV/DIV)
Time (500 µs/DIV)
2.5-V Adjustable Output |
MODE = High |
10% to 100% Load Step |
|
Figure 64. Load Transient
VOUT Ripple
(20 mV/DIV)
Time (1 µs/DIV) 250MHz BW
2.5-V Adjustable Output IOUT = 0.5 A
Figure 66. Output Ripple 250-MHz BW
EN
(2 V/DIV)
VOUT
(2 V/DIV)
IOUT
(200 MA/DIV)
PGOOD |
|
(2 V/DIV) |
TIME (2 MS/DIV) |
Figure 68. Start-up with 24-V Input
Copyright © 2018–2019, Texas Instruments Incorporated |
Submit Documentation Feedback |
31 |
Product Folder Links: LMZM23600
LMZM23600 |
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SNVSB53B –FEBRUARY 2018–REVISED MAY 2019 |
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www.ti.com |
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9.2.3.6 VOUT = 1.2 V and VOUT = 1.8 V |
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100 |
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90 |
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90 |
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70 |
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(%) |
60 |
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(%) |
60 |
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Efficiency |
50 |
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Efficiency |
50 |
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40 |
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VIN = 5 V PFM |
40 |
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30 |
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VIN = 5 V FPWM |
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30 |
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20 |
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VIN = 12 V PFM |
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20 |
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VIN = 5 V PFM |
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VIN = 12 V FPWM |
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VIN = 5 V FPWM |
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10 |
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VIN = 15 V PFM |
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10 |
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VIN = 12 V PFM |
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VIN = 15 V FPWM |
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VIN = 12 V FPWM |
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0 |
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0 |
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0.0001 |
0.001 |
0.01 |
0.1 0.2 |
0.5 |
1 |
2 3 |
5 710 |
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0.0001 |
0.001 |
0.01 |
0.1 0.2 |
0.5 |
1 |
2 3 |
5 710 |
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Output Current (A) |
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D095 |
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Output Current (A) |
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D097 |
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MODE = Low for Auto PFM Mode |
1.8-V Adjustable Output |
MODE = Low for Auto PFM Mode |
1.2-V Adjustable Output |
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MODE = High for FPWM Mode |
MODE = High for FPWM Mode |
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Figure 69. Efficiency for VOUT = 1.8 V |
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Figure 70. Efficiency for VOUT = 1.2 V |
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1.88 |
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1.24 |
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1.86 |
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(V) |
1.84 |
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(V) |
1.22 |
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1.82 |
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Voltage |
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Voltage |
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1.8 |
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1.2 |
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Output |
1.78 |
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VIN = 5 V PFM |
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Output |
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VIN = 5 V FPWM |
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1.76 |
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1.18 |
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VIN = 12 V PFM |
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VIN = 5 V PFM |
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VIN = 12 V FPWM |
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VIN = 5 V FPWM |
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1.74 |
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VIN = 15 V PFM |
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VIN = 12 V PFM |
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VIN = 15 V FPWM |
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VIN = 12 V FPWM |
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1.72 |
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1.16 |
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0 |
0.1 |
0.2 |
0.3 |
0.4 |
0.5 |
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0.1 |
0.2 |
0.3 |
0.4 |
0.5 |
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Output Current (A) |
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D089 |
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Output Current (A) |
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D087 |
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Figure 71. Line and Load Regulation for VOUT = 1.8 V |
Figure 72. Line and Load Regulation for VOUT = 1.2 V |
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0.5 |
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0.5 |
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VIN = 5 V PFM |
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VIN = 5 V PFM |
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VIN = 5 V FPWM |
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VIN = 5 V FPWM |
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0.4 |
VIN = 12 V PFM |
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0.4 |
VIN = 12 V PFM |
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VIN = 12 V FPWM |
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VIN = 12 V FPWM |
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(W) |
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(W) |
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VIN = 15 V PFM |
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Dissipation |
0.3 |
VIN = 15 V FPWM |
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Dissipation |
0.3 |
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Power |
0.2 |
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Power |
0.2 |
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0.1 |
0.2 |
0.3 |
0.4 |
0.5 |
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0.1 |
0.2 |
0.3 |
0.4 |
0.5 |
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Output Current (A) |
D093 |
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Output Current (A) |
D091 |
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MODE = Low for Auto PFM Mode |
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1.8-V Adjustable Output |
MODE = Low for Auto PFM Mode |
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1.2-V Adjustable Output |
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MODE = High for FPWM Mode |
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MODE = High for FPWM Mode |
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Figure 73. Power Dissipation for VOUT = 1.8 V |
Figure 74. Power Dissipation for VOUT = 1.2 V |
32 |
Submit Documentation Feedback |
Copyright © 2018–2019, Texas Instruments Incorporated |
Product Folder Links: LMZM23600
www.ti.com |
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9.2.3.7 VOUT = 5 V and 3.3 V Fixed Output Options |
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100 |
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90 |
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80 |
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70 |
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(%) |
60 |
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Efficiency |
50 |
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VIN = |
6.5V PFM |
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40 |
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VIN = |
6.5V FPWM |
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VIN = |
12 V PFM |
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30 |
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12 V FPWM |
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20 |
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VIN = |
24 V PFM |
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VIN = |
24 V FPWM |
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10 |
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VIN = |
36 V PFM |
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VIN = |
36 V FPWM |
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0 |
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0.0001 |
0.001 |
0.01 |
0.1 0.2 |
0.5 |
1 |
2 3 |
5 710 |
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Output Current (A) |
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D064 |
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MODE = Low for Auto PFM Mode |
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5-V Fixed Output |
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MODE = High for FPWM Mode
Figure 75. Efficiency for VOUT = 5 V
Output Voltage (V)
5.1
5.075
5.05
5.025
5 
4.975
4.95
4.925
4.9
4.875
4.85
4.825
VIN = 5 V PFM VIN = 5 V FPWM VIN = 12 V PFM VIN = 12 V FPWM VIN = 24 V PFM VIN = 24 V FPWM VIN = 36 V PFM VIN = 36 V FPWM
0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5
Output Current (A)
D074
Figure 77. Line and Load Regulation for VOUT = 5 V
1.2
1.1VIN = 6.5 V PFM VIN = 6.5 V FPWM
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1 |
VIN = 12 V PFM |
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(W) |
0.9 |
VIN = 12 V FPWM |
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0.8 |
VIN = 24 V PFM |
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Dissipation |
VIN = 24 V FPWM |
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0.7 |
VIN = 36 V PFM |
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0.6 |
VIN = 36 V FPWM |
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Power |
0.5 |
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0.4 |
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0.3
0.2
0.1 
0
0 |
0.05 |
0.1 |
0.15 |
0.2 |
0.25 |
0.3 |
0.35 |
0.4 |
0.45 |
0.5 |
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Output Current (A) |
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D068 |
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MODE = Low for Auto PFM Mode |
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5-V Fixed Output |
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MODE = High for FPWM Mode
Figure 79. Power Dissipation for VOUT = 5 V
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LMZM23600 |
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SNVSB53B –FEBRUARY 2018–REVISED MAY 2019 |
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100 |
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90 |
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80 |
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70 |
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(%) |
60 |
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Efficiency |
50 |
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VIN = 5 V PFM |
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40 |
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VIN = 5 V FPWM |
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VIN = 12 V PFM |
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30 |
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VIN = 12 V FPWM |
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20 |
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VIN = 24 V PFM |
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VIN = 24 V FPWM |
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10 |
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VIN = 36 V PFM |
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VIN = 36 V FPWM |
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0 |
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0.0001 |
0.001 |
0.01 |
0.1 0.2 |
0.5 |
1 |
2 3 |
5 710 |
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Output Current (A) |
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D066 |
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MODE = Low for Auto PFM Mode |
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3.3-V Fixed Output |
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MODE = High for FPWM Mode
Figure 76. Efficiency for VOUT = 3.3 V
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3.38 |
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3.36 |
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3.34 |
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3.32 |
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(V) |
3.3 |
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3.28 |
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Voltage |
VIN = 5 V PFM |
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3.26 |
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3.24 |
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Output |
3.22 |
VIN = 5 V FPWM |
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3.2 |
VIN = 12 V PFM |
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3.18 |
VIN = 12 V FPWM |
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3.16 |
VIN = 24 V PFM |
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VIN = 24 V FPWM |
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3.14 |
||
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VIN = 36 V PFM |
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3.12 |
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VIN = 36 V FPWM |
3.1 |
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0 |
0.05 |
0.1 |
0.15 |
0.2 |
0.25 |
0.3 |
0.35 |
0.4 |
0.45 |
0.5 |
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Output Current (A) |
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D072 |
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Figure 78. Line and Load Regulation for VOUT = 3.3 V
1.2
1.1VIN = 5.0 V PFM VIN = 5.0 V FPWM
|
1 |
VIN = 12 V PFM |
|
(W) |
0.9 |
VIN = 12 V FPWM |
|
0.8 |
VIN = 24 V PFM |
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Dissipation |
VIN = 24 V FPWM |
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0.7 |
VIN = 36 V PFM |
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0.6 |
VIN = 36 V FPWM |
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Power |
0.5 |
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0.4 |
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0.3
0.2
0.1 
0
0 |
0.05 |
0.1 |
0.15 |
0.2 |
0.25 |
0.3 |
0.35 |
0.4 |
0.45 |
0.5 |
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Output Current (A) |
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D070 |
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MODE = Low for Auto PFM Mode |
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3.3-V Fixed Output |
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MODE = High for FPWM Mode |
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Figure 80. Power Dissipation for VOUT = 3.3 V
Copyright © 2018–2019, Texas Instruments Incorporated |
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LMZM23600
SNVSB53B –FEBRUARY 2018–REVISED MAY 2019 |
www.ti.com |
9.3 Do's and Don't's
•Don't: Exceed the absolute maximum ratings of the device.
•Don't: Exceed the ESD ratings of the device.
•Don't: Exceed the recommended operating conditions.
•Don't: Allow the EN or MODE/SYNC terminals to float.
•Don't: Allow the output voltage to exceed the input voltage, nor go below ground.
•Do: Follow all of the guidelines and/or suggestions found in this data sheet, before committing your design to production.
•Do: Review your designs with TI Application Engineers on the E2E forum.
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Copyright © 2018–2019, Texas Instruments Incorporated |
Product Folder Links: LMZM23600