ADP1110_15 datasheet(2/16 Pages) AD

Part #	ADP1110

Description	Micropower, Step-Up/Step-Down Switching Regulator Adjustable and Fixed 5 V, 12 V

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–2–

REV. 0

ADP1110–SPECIFICATIONS

Parameter

Conditions

VS

Min

Typ

Max

Units

QUIESCENT CURRENT

Switch Off

IQ

300

µA

INPUT VOLTAGE

Step-Up Mode

VIN

1.15

12.6

V

Step-Down Mode

30

V

COMPARATOR TRIP POINT VOLTAGE

ADP11101

210

220

230

mV

OUTPUT SENSE VOLTAGE

ADP1110-3.3

2

VOUT

3.13

3.30

3.47

V

ADP1110-52

4.75

5.00

5.25

V

ADP1110-12

2

11.4

12.00

12.6

V

COMPARATOR HYSTERESIS

ADP1110

4

8

mV

OUTPUT HYSTERESIS

ADP1110-3.3

66

130

mV

ADP1110-5

90

180

mV

ADP1110-12

200

400

mV

OSCILLATOR FREQUENCY

fOSC

52

70

90

kHz

DUTY CYCLE

Full Load (VFB < VREF)DC

62

69

78

%

SWITCH ON TIME

tON

7.5

10

12.5

µs

FEEDBACK PIN BIAS CURRENT

ADP1110 VFB = 0 V

IFB

150

240

nA

SET PIN BIAS CURRENT

VSET = VREF

ISET

300

500

nA

A0 OUTPUT LOW

IAO = 300 µAVAO

0.15

0.4

V

VSET = 150 mV

REFERENCE LINE REGULATION

1.0 V

≤ V

IN ≤ 1.5 V

0.35

%/V

1.5 V

≤ V

IN

≤ 12 V

0.05

0.1

%/V

SWITCH SATURATION VOLTAGE

VIN = 1.5 V, ISW = 400 mA, +25

°CV

CESAT

300

500

mV

STEP-UP MODE

TMIN to TMAX

600

mV

VIN = 1.5 V, ISW = 500 mA, +25°C

400

650

mV

TMIN to TMAX

750

mV

VIN = 5 V, ISW = 1 A, +25

°C

700

1000

mV

A2 ERROR AMP GAIN

RL = 100 k

Ω3

AV

1000

5000

V/V

REVERSE BATTERY CURRENT

TA = +25°C

4

IREV

750

mA

CURRENT LIMIT TEMPERATURE

VIN, TA = +25

°C

–0.3

%/

°C

COEFFICIENT

SWITCH OFF LEAKAGE CURRENT

Measured at SW1 Pin,

ILEAK

110

µA

TA = +25

°C

MAXIMUM EXCURSION BELOW GND

ISW1 ≤ 10 µA, Switch Off

VSW2

–400

–350

mV

TA = +25

°C

NOTES

1This specification guarantees that both the high and low trip point of the comparator fall within the 210 mV to 230 mV range.

2This specification guarantees that the output voltage of the fixed versions will always fall within the specified range. The waveform at the sense pin will exhibit a saw-

tooth shape due to the comparator hysteresis.

3100 k

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

4The ADP1110 is guaranteed to withstand continuous application of +1.6 V applied to the GND and SW2 pins while V

IN, ILIM, and SW1 pins are grounded.

5All limits at temperature extremes are guaranteed via correlation using standard statistical quality control methods.

Specifications subject to change without notice.

(0 C to +70 C, VIN = 1.5 V unless otherwise noted)

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