ADP5042 datasheet(5/32 Pages) AD

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ADP5042

Rev. 0 | Page 5 of 32

BUCK SPECIFICATIONS

AVIN, VIN1 = 3.6 V, VOUT1 = 1.8 V, TJ= −40°C to +125°C for minimum/maximum specifications, L = 1 µH, COUT = 10 µF, and TA = 25°C

for typical specifications, unless otherwise noted.1

Table 3.

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

INPUT CHARACTERISTICS

Input Voltage Range (VIN1)

2.3

5.5

OUTPUT CHARACTERISTICS

Output Voltage Accuracy

PWM mode, T

A= 25 °C , ILOAD = 100 mA

−1

PWM mode

−2

VIN1 = 2.3 V to 5.5 V, PWM mode,

LOAD = 1 to 800 mA

−3

PWM TO POWER SAVE MODE CURRENT THRESHOLD

100

INPUT CURRENT CHARACTERISTICS

DC Operating Current

LOAD = 0 mA, device not switching

μA

Shutdown Current

ENx = 0 V, T

A = TJ = −40°C to +125°C

0.2

1.0

μA

SW CHARACTERISTICS

SW On Resistance

PFET

180

240

mΩ

PFET, AVIN = VIN1 = 5 V

140

190

mΩ

NFET

170

235

mΩ

NFET, AVIN = VIN1 = 5 V

150

210

mΩ

Current Limit

PFET switch peak current limit

1100

1360

1600

ACTIVE PULL-DOWN

EN1 = 0 V

OSCILLATOR FREQUENCY

2.5

3.0

3.5

MHz

START-UP TIME

250

μs

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

LDO1, LDO2 SPECIFICATIONS

AVIN = 3.6 V, VIN2,VIN3 = (VOUT3 + 0.2 V) or 2.3 V, whichever is greater; AVIN, VIN1 ≥ VIN2,VIN3; IOUT = 10 mA; CIN = COUT = 1 µF;

TA = 25°C, unless otherwise noted.

Table 4.

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

INPUT VOLTAGE RANGE

IN2, VIN3

J = −40°C to +125°C

1.7

5.5

OPERATING SUPPLY CURRENT (per

LDO)

GND

OUT = 0 µA, VOUT = 3.3 V

µA

OUT = 0 µA, VOUT = 3.3 V, TJ = −40°C to +125°C

µA

OUT = 10 mA

µA

OUT = 10 mA, TJ = −40°C to +125°C

105

µA

OUT = 200 mA

100

µA

OUT = 200 mA, TJ = −40°C to +125°C

245

µA

FIXED OUTPUT VOLTAGE ACCURACY

OUT2, VOUT3

OUT = 10 mA

−1

100 µA < I

OUT < 300 mA

−2

IN2, VIN3 = (VOUT2, VOUT3 + 0.5 V) to 5.5 V

100 µA < I

OUT < 300 mA

−3

IN2, VIN3 = (VOUT2, VOUT3 + 0.5 V) to 5.5 V

J = −40°C to +125°C

REGULATION

Line Regulation

∆V

OUT2/∆VIN2

∆V

OUT3/∆VIN3

IN2, VIN3 = (VOUT2, VOUT3 + 0.5 V) to 5.5 V

−0.03

+0.03

%/V

OUT3 = 1 mA

J = −40°C to +125°C

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