ADP1111 datasheet(2/16 Pages) AD

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–2–

REV. 0

ADP1111–SPECIFICATIONS

Parameter

Conditions

Min

Typ

Max

Units

QUIESCENT CURRENT

Switch Off

300

500

µA

INPUT VOLTAGE

Step-Up Mode

VIN

2.0

12.6

Step-Down Mode

30.0

COMPARATOR TRIP POINT

VOLTAGE

ADP1111

1.20

1.25

1.30

OUTPUT SENSE VOLTAGE

ADP1111-3.3

VOUT

3.13

3.30

3.47

ADP1111-5

4.75

5.00

5.25

ADP1111-12

11.40

12.00

12.60

COMPARATOR HYSTERESIS

ADP1111

12.5

OUTPUT HYSTERESIS

ADP1111-3.3

ADP1111-5

ADP1111-12

120

OSCILLATOR FREQUENCY

fOSC

kHz

DUTY CYCLE

Full Load

SWITCH ON TIME

ILIM Tied to VIN

tON

µs

SW SATURATION VOLTAGE

TA = +25

°C

STEP-UP MODE

VIN = 3.0 V, ISW = 650 mA

VSAT

0.5

0.65

VIN = 5.0 V, ISW = 1 A

0.8

1.0

STEP-DOWN MODE

VIN = 12 V, ISW = 650 mA

1.1

1.5

FEEDBACK PIN BIAS CURRENT

ADP1111 VFB = 0 V

IFB

160

300

SET PIN BIAS CURRENT

VSET = VREF

ISET

270

400

GAIN BLOCK OUTPUT LOW

ISINK = 300 µA

VSET = 1.00 V

VOL

0.15

0.4

REFERENCE LINE REGULATION

5 V

≤ V

IN ≤ 30 V

0.02

0.075

%/V

2 V

≤ V

≤ 5 V

0.4

%/V

GAIN BLOCK GAIN

RL = 100 kΩ

1000

6000

V/V

CURRENT LIMIT

TA = +25°C

220

Ω from I

LIM to VIN

ILIM

400

CURRENT LIMIT TEMPERATURE

COEFFICIENT

–0.3

°C

SWITCH OFF LEAKAGE CURRENT

TA = +25°C

Measured at SW1 Pin

VSW1 = 12 V

µA

MAXIMUM EXCURSION BELOW GND

TA = +25

°C

ISW1

≤ 10 µA, Switch Off

–400

–350

NOTES

1This specification guarantees that both the high and low trip points of the comparator fall within the 1.20 V to 1.30 V range.

2The output voltage waveform will exhibit a sawtooth shape due to the comparator hysteresis. The output voltage on the fixed output versions will always be within

the specified range.

3100 k

Ω resistor connected between a 5 V source and the AO pin.

All limits at temperature extremes are guaranteed via correlation using standard statistical methods.

Specifications subject to change without notice.

(0 C

≤ T

≤ +70 C, V

IN = 3 V unless otherwise noted)

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