ADP5053ACPZ-R7 datasheet(15/37 Pages) AD

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ADP5053

Data Sheet

Rev. B | Page 14 of 36

100

120

140

160

180

200

–50

–20

100

130

TEMPERATURE (°C)

CHANNEL 1/CHANNEL 2

CHANNEL 3/CHANNEL 4

Figure 22. Minimum On Time vs. Temperature

CH1 5.00V CH2 10.0mV

M1.00µs

A CH1

7.40V

VOUT

SWx

Figure 23. 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

SWx

Figure 24. 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 25. 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 26. 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

EN1/EN2

PWRGD

Figure 27. 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

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