ADP1032ACPZ-3-R7 datasheet(19/37 Pages) AD

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Data Sheet

ADP1032

Rev. 0 | Page 19 of 37

CH1 10.0mV

CH2 20.0mA

M10.0µs

A CH3

20.4V

700.000ns

CH3 10.0V BW

VOUT2

ISW2

VSW2

Figure 46. Buck Regulator Pulse Skipping Operation Showing Inductor

Current 2 (ISW2), Switch Node Voltage, and Output Ripple, TA = 25°C,

VOUT1 = 24 V, VOUT2 = 5.15 V, IOUT2 = 0.3 mA

CH1

20.0mV Ω

CH2 50.0mA

M2.00µs

A CH3

16.0V

40.0000ns

CH3 10.0V BW

VOUT2

ISW2

VSW2

Figure 47. Buck Regulator Discontinuous Conduction Mode Operation

Showing ISW2, Switch Node Voltage, and Output Ripple, TA = 25°C,

VOUT1 = 21 V, VOUT2 = 5.15 V, IOUT2 = 7 mA

CH1 5.00mA

CH2 500mV

M2.00ms A CH1

4.30mA

5.92000ms

CH3 10.0V

VSW2

IOUT2

VOUT2

Figure 48. Buck Regulator Load Transient Response, VOUT1 = 24 V,

VOUT2 = 5.15 V, IOUT2 = 0.3 mA to 7 mA Step, TA = 25°C

CH1

50.0mV Ω

CH2 100mA

M2.00µs

A CH3

3.80V

–40.000ns

CH3 10.0V BW

VOUT2

ISW2

VSW2

Figure 49. Buck Regulator Discontinuous Conduction Mode Operation

Showing ISW2, Switch Node Voltage, and Output Ripple, TA = 25°C,

VOUT1 = 21 V, VOUT2 = 5.15 V, IOUT2 = 50 mA

CH1

1.00V Ω

CH2 200mA

M200µs A CH2

164mA

595.000µs

CH3 10.0V BW

VOUT2

VSW2

ISW2

Figure 50. Buck Regulator Short-Circuit Current Limit During Startup,

VOUT1 = 24 V, VOUT2 = SGND2, TA = 25°C

CH1 5.00mA

CH2 500mV

M2.00ms

A CH1

4.30mA

5.92000ms

CH3 10.0V BW

VSW2

IOUT2

VOUT2

Figure 51. Buck Regulator Load Transient Response, VOUT1 = 21 V,

VOUT2 = 5.15 V, IOUT2 = 0.3 mA to 7 mA Step, TA = 25°C

ADP1032ACPZ-3-R7 Datasheet(PDF) 19 Page - Analog Devices

ADP1032ACPZ-3-R7 Datasheet(HTML) 19 Page - Analog Devices

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