ADP1874ARQZ-0.3-R7 datasheet(10/44 Pages) AD

Part #	ADP1874ARQZ-0.3-R7

Description	Synchronous Buck Controller with Constant On-Time and Valley Current Mode

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Manufacturer	AD [Analog Devices]

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ADP1874/ADP1875

Rev. 0 | Page 10 of 44

0.808

0.792

0.794

0.796

0.798

0.800

0.802

0.804

0.806

0

1000 2000 3000 4000 5000 6000 7000 8000

10,000

9000

LOAD CURRENT (mA)

+125°C

+25°C

–40°C

VIN = 13V

VIN = 16.5V

Figure 16. Output Voltage Accuracy—600 kHz, VOUT = 0.8 V

1.818

1.770

1.772

1.774

1.776

1.778

1.780

1.782

1.784

1.786

1.788

1.790

1.792

1.794

1.796

1.798

1.800

1.802

1.804

1.806

1.808

1.810

1.812

1.814

1.816

0

12,000

10,500

9000

7500

6000

4500

3000

1500

LOAD CURRENT (mA)

+125°C

+25°C

–40°C

VIN = 13V

+125°C

+25°C

–40°C

VIN = 16.5V

Figure 17. Output Voltage Accuracy—600 kHz, VOUT = 1.8 V

5.030

5.025

5.005

5.010

5.015

5.020

5.000

4.995

4.990

4.985

4.980

4.975

4.970

0

1000 2000 3000 4000 5000 6000 7000 8000 9000 10,000

LOAD CURRENT (mA)

+125°C

+25°C

–40°C

VIN = 13V

VIN = 16.5V

VIN = 20V

Figure 18. Output Voltage Accuracy—600 kHz, VOUT = 5 V

0

2000

4000

6000

8000

10,000

LOAD CURRENT (mA)

+125°C

+25°C

–40°C

VIN = 13V

+125°C

+25°C

–40°C

VIN = 16.5V

0.787

0.789

0.791

0.793

0.795

0.797

0.799

0.801

0.803

0.805

0.807

Figure 19. Output Voltage Accuracy—1.0 MHz, VOUT = 0.8 V

1.820

1.815

1.810

1.805

1.800

1.795

1.790

0

10,000

0

1000 2000 3000 4000 5000 6000 7000 8000 9000

LOAD CURRENT (mA)

+125°C

+25°C

–40°C

VIN = 13V

+125°C

+25°C

–40°C

VIN = 16.5V

Figure 20. Output Voltage Accuracy—1.0 MHz, VOUT = 1.8 V

7200

6400

5600

4800

4000

2400

1600

3200

0

9600

8800

8000

800

5.04

4.90

4.91

4.92

4.93

4.94

4.95

4.96

4.97

4.98

4.99

5.00

5.01

5.02

5.03

LOAD CURRENT (mA)

+125°C

+25°C

–40°C

VIN = 13V

+125°C

+25°C

–40°C

VIN = 16.5V

Figure 21. Output Voltage Accuracy—1.0 MHz, VOUT =5 V

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ADP1874ARQZ-0.3-R7 Datasheet(PDF) 10 Page - Analog Devices

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