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ADP1111ARZ

Micropower, Step-Up/Step-Down SW Regulator; Adjustable and Fixed 3.3 V, 5 V, 12 V

Analog Devices 

ADP1111–SPECIFICATIONS (0؇C ≤ TA ≤ +70؇C, VIN = 3 V unless otherwise noted)

Parameter

QUIESCENT CURRENT

INPUT VOLTAGE

Conditions

Switch Off

Step-Up Mode

Step-Down Mode

VS

Min Typ

Max

Units

IQ

300

500

μA

VIN

2.0

12.6

V

30.0

V

COMPARATOR TRIP POINT

VOLTAGE

ADP11111

1.20 1.25

1.30

V

OUTPUT SENSE VOLTAGE

ADP1111-3.3

ADP1111-52

ADP1111-122

VOUT

3.13

3.30

3.47

V

4.75 5.00

5.25

V

11.40 12.00 12.60

V

COMPARATOR HYSTERESIS

ADP1111

8

12.5

mV

OUTPUT HYSTERESIS

ADP1111-3.3

ADP1111-5

ADP1111-12

21

50

mV

32

50

mV

75

120

mV

OSCILLATOR FREQUENCY

DUTY CYCLE

Full Load

fOSC

54

72

88

kHz

DC

43

50

65

%

SWITCH ON TIME

SW SATURATION VOLTAGE

STEP-UP MODE

STEP-DOWN MODE

FEEDBACK PIN BIAS CURRENT

SET PIN BIAS CURRENT

GAIN BLOCK OUTPUT LOW

REFERENCE LINE REGULATION

GAIN BLOCK GAIN

CURRENT LIMIT

CURRENT LIMIT TEMPERATURE

COEFFICIENT

ILIM Tied to VIN

TA = +25°C

VIN = 3.0 V, ISW = 650 mA

VIN = 5.0 V, ISW = 1 A

VIN = 12 V, ISW = 650 mA

ADP1111 VFB = 0 V

VSET = VREF

ISINK = 300 μA

VSET = 1.00 V

5 V ≤ VIN ≤ 30 V

2 V ≤ VIN ≤ 5 V

RL = 100 kΩ3

TA = +25°C

220 Ω from ILIM to VIN

tON

VSAT

IFB

ISET

VOL

AV

ILIM

5

7

0.5

0.8

1.1

160

270

1000

0.15

0.02

0.4

6000

400

–0.3

9

0.65

1.0

1.5

300

400

0.4

0.075

μs

V

V

V

nA

nA

V

%/V

%/V

V/V

mA

%/°C

SWITCH OFF LEAKAGE CURRENT

TA = +25°C

Measured at SW1 Pin

VSW1 = 12 V

1

10

μA

MAXIMUM EXCURSION BELOW GND

TA = +25°C

ISW1 ≤ 10 μA, Switch Off

–400

–350

mV

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

4

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

Specifications subject to change without notice.

–2–

RREEVV.. A0

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