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

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ADP5023
(Rev.:RevA)

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

Analog Devices 

ADP5023

Data Sheet

BUCK1 AND BUCK2 SPECIFICATIONS

VAVIN = VIN1 = VIN2 = 2.3 V to 5.5 V; TJ = −40°C to +125°C for minimum/maximum specifications, and TA = 25°C for typical

specifications, unless otherwise noted.1

Table 2.

Parameter

OUTPUT CHARACTERISTICS

Output Voltage Accuracy

Line Regulation

Load Regulation

VOLTAGE FEEDBACK

OPERATING SUPPLY CURRENT

BUCK1 Only

Symbol

ΔVOUT1/VOUT1,

ΔVOUT2/VOUT2

(ΔVOUT1/VOUT1)/ΔVIN1,

(ΔVOUT2/VOUT2)/ΔVIN2

(ΔVOUT1/VOUT1)/ΔIOUT1,

(ΔVOUT2/VOUT2)/ΔIOUT2

VFB1, VFB2

IIN

BUCK2 Only

IIN

BUCK1 and BUCK2

IIN

PSM CURRENT THRESHOLD

SW CHARACTERISTICS

SW On Resistance

Current Limit

ACTIVE PULL-DOWN

OSCILLATOR FREQUENCY

IPSM

RNFET

RPFET

RNFET

RPFET

ILIMIT1, ILIMIT2

RPDWN-B

fSW

Test Conditions/Comments

Min

PWM mode; ILOAD1 = ILOAD2 = 0 mA to 800 mA −3

PWM mode

PWM mode; ILOAD = 0 mA to 800 mA

Models with adjustable outputs

MODE = ground

ILOAD1 = 0 mA, device not switching, all

other channels disabled

ILOAD2 = 0 mA, device not switching, all

other channels disabled

ILOAD1 = ILOAD2 = 0 mA, device not switching,

LDO channels disabled

PSM to PWM operation

0.485

VIN1 = VIN2 = 3.6 V

VIN1 = VIN2 = 3.6 V

VIN1 = VIN2 = 5.5 V

VIN1 = VIN2 = 5.5 V

pFET switch peak current limit

Channel disabled

1600

2.5

Typ

−0.05

−0.1

0.5

44

55

67

100

155

205

137

162

1950

75

3.0

Max

+3

0.515

240

310

204

243

2300

3.5

1 All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC).

Unit

%

%/V

%/A

V

μA

μA

μA

mA

mΩ

mΩ

mΩ

mΩ

mA

Ω

MHz

Rev. A | Page 4 of 28

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