LM5177DCPR datasheet(13/60 Pages) TI2

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5.6 Typical Characteristics

The following conditions apply (unless otherwise noted): TJ = 25°C; V(VCC) = 5V

RT-pin Resistor(k )

120

160

200

240

280

320

360

400

120

180

240

300

360

420

480

540

600

Figure 5-1. Switching Frequency Versus RT Resistance

Temperature ( C)

-40

-20

100

120

360

368

376

384

392

400

408

416

424

432

440

Figure 5-2. Switching Frequency Versus Temperature R(RT) = 75

kΩ

VCC load current [mA]

80 120 160 200 240 280 320 360 400 440 480

4.5

4.6

4.7

4.8

4.9

5.1

Figure 5-3. VIN LDO - VCC Voltage versus VCC Load Current

VIN voltage (V)

3.5

3.7

3.9

4.1

4.3

4.5

4.7

4.9

5.1

5.3

5.5

3.3

3.5

3.7

3.9

4.1

4.3

4.5

4.7

4.9

5.1

Figure 5-4. VIN LDO - VCC Voltage versus VIN Voltage

I(VCC) = 20 mA

VCC load current [mA]

120

180

240

300

360

420

480

4.5

4.6

4.7

4.8

4.9

5.1

Figure 5-5. BIAS LDO - VCC Voltage versus VCC Load Current

BIAS voltage (V)

3.5

3.7

3.9

4.1

4.3

4.5

4.7

4.9

5.1

5.3

5.5

3.3

3.5

3.7

3.9

4.1

4.3

4.5

4.7

4.9

5.1

Figure 5-6. BIAS LDO - VCC Voltage versus BIAS Voltage

I(VCC) = 50 mA

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LM5177

SNVSBU4F – JUNE 2022 – REVISED JANUARY 2025

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