TIDT419 January   2025

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Required Equipment
    3. 1.3 Considerations
    4. 1.4 Dimensions
    5. 1.5 Test Setup
  6. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Thermal Images
    4. 2.4 Charge Time and Holdup Time
  7. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Input and Output Voltage Ripple
      1. 3.2.1 Buck Converter
      2. 3.2.2 Boost Converter
    3. 3.3 Load Transients
    4. 3.4 Start-up Sequence

Efficiency Data

Table 2-1 and Table 2-2 show the PMP23518 efficiency data.

Table 2-1 Boost Converter Efficiency
IOUT (A)
J2

Efficiency (%)
2.0V Input
J8

Efficiency (%)
1.5V Input
J8

Efficiency (%)
1.0V Input
J8

Efficiency (%)
0.5V Input
J8

0.0

0.0

0.0

0.0

0.0

0.1

93.6

87.9

90.4

87.6

0.2

94.6

93.5

90.7

85.7

0.3

94.9

94.4

89.5

86.1

0.4

94.7

92.5

87.1

85.7

0.5

94.5

91.3

85.3

Current limit

0.6

93.9

90.1

82.5

Current limit

0.7

92.6

89.2

Current limit Current limit

0.8

92.4

88.0

Current limit Current limit

0.9

91.7

87.2

Current limit Current limit

1.0

91.3

86.2

Current limit Current limit
Table 2-2 Buck Converter Efficiency
VIN (V)
J1
IIN (A)
J1
VOUT (V)
J4
IOUT (A)
J4
Efficiency (%)
J4

12.05

0.00024

3.670

0.00

0.00

12.04

0.017

3.664

0.05

89.5

12.04

0.034

3.676

0.10

89.8

12.03

0.050

3.671

0.15

91.5

12.02

0.067

3.668

0.20

91.1

12.02

0.083

3.667

0.25

91.9

12.01

0.099

3.663

0.30

92.4

12.00

0.115

3.661

0.35

92.9

12.00

0.133

3.663

0.40

91.8

12.04

0.165

3.664

0.50

92.2

12.03

0.197

3.664

0.60

92.8

12.00

0.263

3.666

0.80

92.9

12.03

0.330

3.667

1.00

92.4

12.00

0.398

3.668

1.20

92.2

12.03

0.466

3.670

1.40

91.7

12.00

0.538

3.672

1.60

91.0

12.03

0.608

3.674

1.80

90.4