ADP5051 View Datasheet(PDF) - Analog Devices

Part Name

Description

Manufacturer

ADP5051

Integrated Power Solution with Quad Buck Regulators, Supervisory Circuit, and I2C Interface

Analog Devices 

Data Sheet

VOUT

1

IOUT

4

EN1/EN2

2

PWRGD

3

CH1 500mV BW

CH3 5.00V BW

CH2 5.00V M1.00ms

CH4 2.00A Ω

A CH1 650mV

Figure 29. 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

VIN

1

VOUT

ENx

3

2

IOUT

4

CH1 10.0V BW

CH3 1.00V BW

CH2 5.00V BW M400µs

CH4 1.00A Ω BW

A CH2 2.80V

Figure 30. Startup with Precharged Output, VIN = 12 V, VOUT = 3.3 V

VOUT

1

IOUT

4

EN1/EN2

2

PWRGD

3

CH1 500mV BW CH2 5.00V BW M10.0ms A CH1 650mV

CH3 5.00V BW CH4 5.00A Ω BW

Figure 31. Channel 1/Channel 2 Shutdown with Active Output Discharge,

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

ADP5051

1

VOUT

SWx

2

IOUT

4

CH1 500mV BW CH2 10.00V BW M10.0ms A CH1 970mV

CH4 5.00A Ω

Figure 32. Short-Circuit Protection Entry, VIN = 12 V, VOUT = 1.2 V,

fSW = 600 kHz, L = 1 µH, COUT = 47 µF × 2

VOUT

1

SWx

2

IOUT

4

CH1 500mV BW CH2 10.0V BW M10.0ms A CH1 970mV

CH4 5.00A Ω BW

Figure 33. Short-Circuit Protection Recovery, VIN = 12 V, VOUT = 1.2 V,

fSW = 600 kHz, L = 1 µH, COUT = 47 µF × 2

VOUT

2

CH2 200mV BW

M200µs A CH2 1.21V

Figure 34. Channel 1 Dynamic Voltage Scaling (DVS) from 1.1 V to 1.3 V,

62.5 µs Interval, VIN = 12 V, IOUT = 4 A, fSW = 600 kHz, L = 1 µH, COUT = 47 µF × 2

Rev. B | Page 17 of 55

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