ADP3211AMNR2G datasheet(10/32 Pages) ONSEMI

Part #	ADP3211AMNR2G

Description	7-Bit, Programmable, Single-Phase, Synchronous Buck Controller

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Manufacturer	ONSEMI [ON Semiconductor]

Direct Link	http://www.onsemi.com

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ADP3211, ADP3211A

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10

TYPICAL PERFORMANCE CHARACTERISTICS

EN

1

2

3

4

1: 0.5V/div

2: 5V/div

3: 5V/div

4: 5V/div

2ms/div

GPU = 0V

Figure 9. Startup Waveforms CPU Mode

EN

1

2

3

4

1: 0.5V/div

2: 5V/div

3: 5V/div

4: 5V/div

4ms/div

GPU = 5V

Figure 10. Startup Waveforms GPU Mode

1

2

3

4

1 : 100mV/div

2 : 10V/div

3: 5A/div

4 : 5V/div

Low Side Gate Drive

Figure 11. DCM Waveforms, 1 A Load Current

1

2

3

4

1 : 100mV/div

2 : 10V/div

3 : 5A/div

4 : 5V/div

Figure 12. CCM Waveforms, 10 A Load Current

1

2

1: 50mV/div

2: 10V/div

Output Voltage

Switch Node

Input = 12V

Output = 1.2V

3A to 15A Step

Figure 13. Load Transient

Figure 14. Load Transient

1

2

1: 50mV/div

2: 10V/div

Output Voltage

Switch Node

Input = 12V

Output = 1.2V

3A to 15A Step

Output Voltage

CLKEN

PWRGD

40 ms/div

2 ms/div

Low Side Gate Drive

Output Voltage

Inductor

Current

Switch Node

4 ms/div

Inductor

Current

Output Voltage

Switch Node

PWRGD

Output Voltage

CLKEN

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