ADP2302ARDZ-5.0-R7 データシートの表示（PDF） - Analog Devices

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ADP2302ARDZ-5.0-R7

2 A/3 A, 20 V, 700 kHz, Nonsynchronous Step-Down Regulators

Analog Devices 

ADP2302/ADP2303

VOUT

1

IL

4

EN

SW

3

2

CH1 2.00V BW

CH3 10.0V BW

CH2 10.0V M1.00ms A CH3 6.20V

CH4 2.00A Ω T 20.20%

Figure 28. Soft Start Without Load, VOUT = 3.3 V, VIN = 12 V

VOUT (AC)

1

IO

4

CH1 500mV BW

M200µs

A CH4 1.20A

CH4 2.00A Ω T 20.00%

Figure 29. ADP2303 Load Transient, 0.5 A to 3.0 A, VOUT = 5.0 V, VIN = 12 V,

L = 4.7 μH, COUT = 47 μF

VOUT (AC)

1

IO

4

CH1 200mV BW

M200µs

A CH4 1.20A

CH4 1.00A Ω T 20.00%

Figure 30. ADP2302 Load Transient, 0.5 A to 2.0 A, VOUT = 5.0 V, VIN = 12 V,

L = 6.8 μH, COUT = 2 × 22 μF

VOUT

1

IL

4

EN

SW

3

2

CH1 2.00V BW

CH3 10.0V BW

CH2 10.0V M1.00ms A CH3 3.60V

CH4 2.00A Ω T 20.20%

Figure 31. Soft Start with Full Load, VOUT = 3.3 V, VIN = 12 V

VOUT (AC)

1

IO

4

CH1 200mV BW

M200µs

A CH4 1.88A

CH4 2.00A Ω T 20.00%

Figure 32. ADP2303 Load Transient, 0.5 A to 3.0 A, VOUT = 3.3 V, VIN = 12 V,

L = 4.7 μH, COUT = 2 × 47 μF

VOUT (AC)

1

IO

4

CH1 200mV BW

M200µs

A CH4 1.20A

CH4 1.00A Ω T 20.00%

Figure 33. ADP2302 Load Transient, 0.5 A to 2.0 A, VOUT = 3.3 V, VIN = 12 V,

L = 6.8 μH, COUT = 2 × 22 μF

Rev. 0 | Page 10 of 28

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