ADP1073 datasheet(2/2 Pages) AD

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This information applies to a product under development. Its characteristics and specifications are subject to change without notice.

Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing.

PRELIMINAR

TECHNICAL

ADP1073–SPECIFICATIONS

ADP1073

Model

Conditions

Min

Typ

Max

Units

QUIESCENT CURRENT*

Switch Off

130

µA

QUIESCENT CURRENT, STEP-UP

No Load, ADP1073-5

135

µA

MODE CONFIGURATION

ADP1073-12

250

INPUT VOLTAGE*

Step-Up Mode

VIN

1.15

12.6

1.0

12.6

Step-Down Mode

COMPARATOR TRIP POINT

ADP1073

202

212

222

VOLTAGE*

OUTPUT SENSE VOLTAGE*

ADP1073-5

VOUT

4.75

5.00

5.25

ADP1073-122

11.4

12.00

12.6

COMPARATOR HYSTERESIS*

ADP1073

OUTPUT HYSTERESIS*

ADP1073-5

125

250

ADP1073-12

300

600

OSCILLATOR FREQUENCY*

fOSC

kHz

DUTY CYCLE*

Full Load (VFB < VREF)DC

SWITCH ON TIME*

tON

µs

FEEDBACK PIN BIAS CURRENT*

ADP1073 VFB = 0 V

IFB

SET PIN BIAS CURRENT*

VSET = VREF

ISET

120

AO OUTPUT LOW*

IAO = 100

µAV

0.15

0.4

REFERENCE LINE REGULATION*

1.0 V

≤ V

IN ≤ 1.5 V

0.35

1.0

%/V

1.5 V

≤ V

≤ 12 V

0.05

0.1

%/V

SWITCH SATURATION VOLTAGE*

VIN = 1.5 V, ISW = 400 mA

VCESAT

300

400

STEP-UP MODE

600

VIN = 1.5 V, ISW = 500 mA

400

550

750

VIN = 5 V, ISW = 1 A

700

1000

1500

A2 ERROR AMP GAIN*

RL = 100 k

Ω3

400

1000

V/V

REVERSE BATTERY CURRENT

(Note 4)

IREV

750

CURRENT LIMIT

220

Ω Between I

LIM and VIN

400

CURRENT LIMIT TEMPERATURE

–0.3

°C

COEFFICIENT

SWITCH OFF LEAKAGE CURRENT

Measured at SW1 Pin

ILEAK

110

µA

MAXIMUM EXCURSION BELOW GND

ISW1

≤ 10 µA, Switch Off

VSW2

–400

–350

NOTES

*Denotes the specifications that apply over the full operating temperature range.

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

sawtooth 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.

Specifications subject to change without notice.

(@ TA = +25 C, VIN = 1.5 V, unless otherwise noted)

REV. 0

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