ADP5023(RevA) Просмотр технического описания (PDF) - Analog Devices

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производитель

ADP5023
(Rev.:RevA)

Dual 3 MHz, 800 mA Buck Regulators with One 300 mA LDO

Analog Devices 

ADP5023

TYPICAL PERFORMANCE CHARACTERISTICS

VIN1 = VIN2 = VIN3 = 3.6 V, TA = 25°C, unless otherwise noted.

140

120

100

80

60

40

20

0

2.3

2.8

3.3

3.8

4.3

4.8

5.3

INPUT VOLTAGE (V)

Figure 3. System Quiescent Current vs. Input Voltage, VOUT1 = 3.3 V,

VOUT2 = 1.8 V, VOUT3 = 1.2 V, VOUT4 = 3.3 V, All Channels Unloaded

T

SW

4

IOUT

2

VOUT

1

EN

3

CH1 2.00V

CH3 5.00V

CH2 50.0mA Ω

CH4 5.00V

M 40.0µs A CH3

T 11.20%

2.2V

Figure 4. BUCK1 Startup, VOUT1 = 1.8 V, IOUT1 = 5 mA

T

SW

4

IOUT

2

VOUT

1

EN

3

CH1 2.00V

CH3 5.00V

CH2 50.0mA Ω

CH4 5.00V

M 40.0µs

T 11.20%

A CH3

2.2V

Figure 5. BUCK2 Startup, VOUT2 = 3.3 V, IOUT2 = 10 mA

Data Sheet

3.35

VIN = 4.2V, +85°C

VIN = 4.2V, +25°C

VIN = 4.2V, –40°C

3.33

3.31

3.29

3.27

3.25

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8

IOUT (A)

Figure 6. BUCK1 Load Regulation Across Temperature, VOUT1 = 3.3 V,

Auto Mode

1.864

1.844

VIN = 3.6V, +85°C

VIN = 3.6V, +25°C

VIN = 3.6V, –40°C

1.824

1.804

1.784

1.764

0

0.1 0.2 0.3 0.4 0.5 0.6 0.7

0.8

IOUT (A)

Figure 7. BUCK2 Load Regulation Across Temperature, VOUT2 = 1.8 V,

Auto Mode

0.799

0.798

0.797

VIN = 3.6V, +85°C

VIN = 3.6V, +25°C

VIN = 3.6V, –40°C

0.796

0.795

0.794

0.793

0.792

0.791

0.790

0.789

0

0.1 0.2 0.3 0.4 0.5 0.6 0.7

0.8

IOUT (A)

Figure 8. BUCK1 Load Regulation Across Input Voltage, VOUT1 = 3.3 V,

PWM Mode

Rev. A | Page 8 of 28

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