ADP5050ACPZ-R7 datasheet(17/60 Pages) AD

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Data Sheet

ADP5050

Rev. 0 | Page 17 of 60

–100

–90

–80

–70

–60

–50

–40

–30

–20

–10

100

10k

100k

10M

FREQUENCY (Hz)

PVIN5 = 4.0V; IOUT = 1mA

PVIN5 = 3.6V, IOUT = 1mA

PVIN5 = 4.0V, IOUT = 100mA

PVIN5 = 3.6V, IOUT = 100mA

PVIN5 = 4.0V, IOUT = 200mA

PVIN5 = 3.6V, IOUT = 200mA

Figure 29. Channel 5 (LDO Regulator) PSRR over Various Loads

and Dropout Voltages, VOUT = 3.3 V, COUT = 1 µF

CH1 5.00V CH2 10.0mV

M1.00µs

A CH1

7.40V

VOUT

Figure 30. Steady State Waveform at Heavy Load, VIN = 12 V, VOUT = 3.3 V,

IOUT = 3 A, fSW = 600 kHz, L = 4.7 µH, COUT = 47 µF × 2, FPWM Mode

CH1 5.00V CH2 50.0mV

M100µs

A CH1

11.0mV

VOUT

Figure 31. Steady State Waveform at Light Load, VIN = 12 V, VOUT = 3.3 V,

IOUT = 30 mA, fSW = 600 kHz, L = 4.7 µH, COUT = 47 µF × 2,

Automatic PWM/PSM Mode

CH1 50.0mV

CH4 2.00A Ω

M100µs

A CH1

–22.0mV

VOUT

IOUT

Figure 32. Channel 1/Channel 2 Load Transient, 1 A to 4 A, VIN = 12 V,

VOUT = 3.3 V, fSW = 600 kHz, L = 2.2 µH, COUT = 47 µF × 2

CH3 2.00A Ω BW CH4 2.00A Ω B

CH2 100mV

W M100µs A CH2

–56.0mV

VOUT

IOUT2

IOUT1

Figure 33. Load Transient, Channel 1/Channel 2 Parallel Output, 0 A to 6 A,

VIN = 12 V, VOUT = 3.3 V, fSW = 600 kHz, L = 4.7 µH, COUT = 47 µF × 4

CH1 500mV BW

CH2 5.00V

CH3 5.00V

CH4 2.00A Ω

M1.00ms

A CH1

650mV

VOUT

IOUT

PWRGD

Figure 34. Channel 1/Channel 2 Soft Start with 4 A Resistance Load,

VIN = 12 V, VOUT = 1.2 V, fSW = 600 kHz, L = 1 µH, COUT = 47 µF × 2

ADP5050ACPZ-R7 Datasheet(PDF) 17 Page - Analog Devices

ADP5050ACPZ-R7 Datasheet(HTML) 17 Page - Analog Devices

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