ADP2441-EVALZ datasheet(11/32 Pages) AD

Part #	ADP2441-EVALZ

Description	36 V,1 A, Synchronous, Step-Down DC-to-DC Regulator

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Manufacturer	AD [Analog Devices]

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Data Sheet

ADP2441

Rev. A | Page 11 of 32

CH1 20.0mV

B

W CH2 10.0V

CH4 200mA Ω

M4.00µs A CH4

120mA

1

4

2

T 41.40%

VIN = 24V

VOUT = 3.3V

FSW = 500kHz

VOUT

INDUCTOR CURRENT

SW

Figure 28. Pulse Skip Mode,

VIN = 24 V, VOUT = 3.3 V, fSW = 500 kHz, No Load

CH1 20.0mV

B

W CH2 10.0V

CH4 500mA Ω

M1.00µs

A CH2

9.80V

1

4

2

T 41.40%

VOUT

INDUCTOR CURRENT

SW

VIN = 24V

VOUT = 3.3V

fSW = 500kHz

LOAD = 1A

Figure 29. PWM Mode,

VIN = 24 V, VOUT = 3.3 V, fSW = 500 kHz, Load = 1 A

CH1 100mV

B

W

CH2 10V

CH4 500mA Ω

M200µs

A CH4

690mA

1

4

2

T 79.80%

VOUT

LOAD

SW

VIN = 24V

VOUT = 5V

fSW = 700kHz

LOAD STEP = 500mA

Figure 30. Load Transient Response,

VIN = 24 V, VOUT = 5 V, fSW = 700 kHz, Load Step = 500 mA

CH1 20.0mV

B

W CH2 10.0V

CH4 500mA Ω

M4.00µs

A CH4

120mA

1

4

2

T 41.40%

VIN = 24V

VOUT = 3.3V

fSW = 500kHz

LOAD = 100mA

VOUT

INDUCTOR CURRENT

SW

Figure 31. Pulse Skip Mode,

VIN = 24 V, VOUT = 3.3 V, fSW = 500 kHz, Load = 100 mA

CH1 200mV

B

W

CH2 10.0V

CH4 1.00A Ω

M2.00ms A CH1

60.0mV

1

4

2

T 49.40%

VOUT

INDUCTOR CURRENT

SW

Figure 32. Hiccup Mode,

VIN = 24 V, VOUT = 3.3 V, fSW = 500 kHz, Output Short to PGND

CH1 50.0mV

B

W CH2 10.0V

CH4 200mA Ω

M200µs

A CH4

604mA

1

4

2

VOUT

LOAD

SW

VIN = 24V

VOUT = 5V

fSW = 700kHz

LOAD STEP = 300mA

Figure 33. Load Transient Response,

VIN = 24 V, VOUT = 5 V, fSW = 700 kHz, Load Step = 300 mA

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