TIDT205 February   2021

 

  1. 1Description
  2. 2Test Prerequisites
    1. 2.1 Voltage and Current Requirements
    2. 2.2 Considerations
    3. 2.3 Dimensions
  3. 3Testing and Results
    1. 3.1 Efficiency Graphs
    2. 3.2 Efficiency Data
    3. 3.3 Load Regulation
    4. 3.4 Thermal Image
    5. 3.5 Bode Plots
    6. 3.6 Conducted Emissions Testing (CISPR 25, Class 5)
  4. 4Waveforms
    1. 4.1 Switching
    2. 4.2 Output Voltage Ripple
    3. 4.3 Load Transients
    4. 4.4 Start-up Sequence
    5. 4.5 Termination Sequence

3.2 Efficiency Data

Efficiency data is shown in the following tables.

Table 3-1 Efficiency Raw Data (5-V Output)

VIN (V)

Iin (A)

Vout (V)

Iout (A)

Pin (W)

Pout (W)

Efficiency

Efficiency (%)

13.503

0.0000302

5.03751

0.0097

0.000408

0.048864

0.04204

4.204027

13.248

0.046132

5.0103

0.102234

0.611157

0.512223

0.838121

83.81205

12.993

0.091725

4.99825

0.20226

1.191783

1.010946

0.848264

84.82636

13.407

0.17367

4.99017

0.40255

2.328394

2.008793

0.862738

86.27377

13.386

0.213298

4.98947

0.5027

2.855207

2.508207

0.878467

87.84675

13.332

0.31253

4.98797

0.75274

4.16665

3.754645

0.901118

90.11183

13.276

0.41397

4.98635

1.00282

5.495866

5.000412

0.90985

90.98497

13.219

0.51744

4.98481

1.2529

6.840039

6.245468

0.913075

91.30749

13.161

0.62307

4.98342

1.5029

8.200224

7.489582

0.913339

91.33387

13.101

0.73125

4.98205

1.7532

9.580106

8.73453

0.911736

91.17362

13.04

0.84219

4.98071

2.0035

10.98216

9.978852

0.908642

90.86423

12.976

0.9562

4.97935

2.2533

12.40765

11.21997

0.904278

90.42783

12.926

1.047

4.97823

2.4336

13.53352

12.11502

0.895186

89.51861
Table 3-2 Efficiency Raw Data (3.3-V Output)

Vin (V)

Iin (A)

Vout (V)

Iout (A)

Pin (W)

Pout (W)

Efficiency

Efficiency (%)

5.037

0.014756

3.32044

0.006

0.074326

0.019923

0.268044

13.45425

5.0211

0.086783

3.31939

0.101925

0.435746

0.338329

0.776436

77.64357

5.0074

0.15183

3.31823

0.20102

0.760274

0.667031

0.877356

87.73561

5.0016

0.22187

3.31695

0.30247

1.109705

1.003278

0.904094

90.40942

4.9925

0.2938

3.31577

0.40243

1.466797

1.334365

0.909714

90.9714

4.9894

0.36729

3.31463

0.50234

1.832557

1.665071

0.908606

90.86056

4.9861

0.44253

3.31364

0.60258

2.206499

1.996733

0.904933

90.49328

4.9831

0.51155

3.31259

0.69244

2.549105

2.29377

0.899833

89.98335

4.9792

0.59828

3.31143

0.80261

2.978956

2.657787

0.892187

89.21874

4.9757

0.67936

3.31032

0.90271

3.380292

2.988259

0.884024

88.4024

4.972

0.7623

3.3092

1.00235

3.790156

3.316977

0.875156

87.51558
Table 3-3 Efficiency Raw Data (1.8-V Output)

Vin (V)

Iin (A)

Vout (V)

Iout (A)

Pin (W)

Pout (W)

Efficiency

Efficiency (%)

4.9117

0.018022

1.79348

0.0031

0.088519

0.00556

0.062809

6.280922

4.6946

0.057267

1.7924

0.10266

0.268846

0.184008

0.684437

68.44365

4.4559

0.100045

1.79132

0.20266

0.445791

0.363029

0.814349

81.43487

4.9403

0.13039

1.79022

0.30287

0.644166

0.542204

0.841715

84.1715

4.9194

0.16885

1.78913

0.40285

0.830641

0.720751

0.867705

86.77049

4.898

0.20816

1.78812

0.50302

1.019568

0.89946

0.882198

88.21976

4.8761

0.24826

1.78699

0.60334

1.210541

1.078163

0.890646

89.06455

4.854

0.28895

1.78595

0.70309

1.402563

1.255684

0.895278

89.52777

4.8313

0.33049

1.78488

0.80321

1.596696

1.433633

0.897875

89.78748

4.8082

0.37288

1.78379

0.90325

1.792882

1.611208

0.89867

89.86697

4.7847

0.41589

1.78277

1.00299

1.989909

1.7881

0.898584

89.85841
Table 3-4 Efficiency vs IOUT (1.35-V Output)

Vin (V)

Iin (A)

Vout (V)

Iout (A)

Pin (W)

Pout (W)

Efficiency

Efficiency (%)

4.9341

0.013965

1.3641

0.0022

0.068905

0.003001

0.043553

4.355319

4.7559

0.046222

1.36308

0.111264

0.219827

0.151662

0.689913

68.99134

4.5785

0.077938

1.36214

0.21133

0.356839

0.287861

0.806697

80.6697

4.383

0.11345

1.36123

0.31168

0.497251

0.424268

0.853227

85.32268

4.9394

0.13182

1.36031

0.41144

0.651112

0.559686

0.859585

85.95851

4.9227

0.162

1.35941

0.51179

0.797477

0.695732

0.872417

87.24165

4.9059

0.19268

1.35851

0.61174

0.945269

0.831055

0.879173

87.91731

4.8887

0.22385

1.35763

0.71173

1.094335

0.966266

0.882971

88.29705

4.8711

0.25571

1.35676

0.81232

1.245589

1.102123

0.884821

88.4821

4.8533

0.28792

1.35583

0.91182

1.397362

1.236273

0.884719

88.47191

4.8352

0.32088

1.35496

1.01175

1.551519

1.370881

0.883573

88.35733

Table 3-5 Efficiency Raw Data (1.175-V Output)

Vin (V)

Iin (A)

Vout (V)

Iout (A)

Pin (W)

Pout (W)

Efficiency

Efficiency (%)

4.9272

0.015235

1.192374

0.0016

0.075066

0.001908

0.025415

2.541498

4.6321

0.068488

1.189767

0.20269

0.317243

0.241154

0.760154

76.01544

4.9479

0.11662

1.18721

0.40306

0.577024

0.478517

0.829284

82.9284

4.9189

0.16994

1.184679

0.60346

0.835918

0.714906

0.855235

85.52352

4.889

0.22502

1.18216

0.80343

1.100123

0.949783

0.863343

86.33426

4.858

0.28209

1.179615

1.00337

1.370393

1.18359

0.863687

86.36866

4.8257

0.34137

1.177089

1.2032

1.647349

1.416273

0.859729

85.97288

4.7908

0.4032

1.174562

1.4034

1.931651

1.64838

0.853353

85.33533

4.7557

0.46752

1.172023

1.6037

2.223385

1.879573

0.845366

84.53657

4.719

0.53479

1.169419

1.804

2.523674

2.109632

0.835937

83.59368

4.6804

0.60502

1.16685

2.0041

2.831736

2.338484

0.825813

82.5813