ADP1879ACPZ-1.0-R7 datasheet(13/40 Pages) AD

13 / 40 page

Data heet

ADP1878/ADP1879

Rev. A | Page 13 of 40

Figure 40. Internal Rectifier Drop vs. Frequency

Figure 41. Internal Boost Rectifier Drop vs. VREG (Low Input Voltage)

Over VIN Variation

Figure 42. Internal Boost Rectifier Drop vs. VREG

Figure 43. Low-Side MOSFET Body Diode Conduction Time vs. VREG

Figure 44. Power Saving Mode (PSM) Operational Waveform, 100 mA

Figure 45. PSM Waveform at Light Load, 500 mA

800

720

640

560

480

400

320

240

160

300

400

500

600

700

800

900

1000

FREQUENCY (kHz)

VREG = 2.7V

VREG = 5.5V

VREG = 3.6V

+125°C

+25°C

–40°C

1280

720

640

560

480

1040

1120

1200

960

880

800

400

320

240

160

2.7

3.1

3.5

3.9

4.3

4.7

5.1

5.5

VREG (V)

VIN = 5.5V

VIN = 16.5V

VIN = 13V

1MHz

300kHz

TA = 25°C

720

640

560

480

400

320

240

160

2.7

3.1

3.5

3.9

4.3

4.7

5.1

5.5

VREG (V)

1MHz

300kHz

+125°C

+25°C

–40°C

2.7

3.1

3.5

3.9

4.3

4.7

5.1

5.5

VREG (V)

1MHz

300kHz

+125°C

+25°C

–40°C

CH1 50mV

CH2 5A Ω

CH3 10V

CH4 5V

M400ns

A CH2

3.90A

T 35.8%

OUTPUT VOLTAGE

INDUCTOR CURRENT

SW NODE

LOW SIDE

CH1 50mV

CH2 5A Ω

CH3 10V

CH4 5V

M4.0µs

A CH2

3.90A

T 35.8%

OUTPUT VOLTAGE

INDUCTOR CURRENT

SW NODE

LOW SIDE

ADP1879ACPZ-1.0-R7 데이터시트(PDF) 13 Page - Analog Devices

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