ADP1612ARMZ-R7 datasheet(3/28 Pages) AD

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ADP1612/ADP1613

Rev. A | Page 3 of 28

SPECIFICATIONS

VIN = 3.6 V, unless otherwise noted. Minimum and maximum values are guaranteed for TJ = −40°C to +125°C. Typical values specified

are at TJ = 25°C. All limits at temperature extremes are guaranteed by correlation and characterization using standard statistical quality

control (SQC), unless otherwise noted.

Table 1.

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

SUPPLY

Input Voltage

VIN

ADP1612

1.8

5.5

ADP1613

2.5

5.5

Quiescent Current

Nonswitching State

VFB = 1.5 V, FREQ = VIN

900

1350

μA

VFB = 1.5 V, FREQ = GND

700

1300

μA

Shutdown

IQSHDN

VEN = 0 V

0.01

μA

Switching State1

IQSW

FREQ = VIN, no load

5.8

FREQ = GND, no load

2.2

Enable Pin Bias Current

IEN

VEN = 3.6 V

3.3

μA

OUTPUT

Output Voltage

VOUT

VIN

Load Regulation

ILOAD = 10 mA to 150 mA, VIN = 3.3 V, VOUT = 12 V

0.1

mV/mA

REFERENCE

Feedback Voltage

VFB

1.2041

1.235

1.2659

Line Regulation

ADP1612, VIN = 1.8 V to 5.5 V; ADP1613, VIN = 2.5 V to 5.5 V

0.07

0.24

%/V

ERROR AMPLIFIER

Transconductance

GMEA

ΔI = 4 μA

μA/V

Voltage Gain

FB Pin Bias Current

VFB = 1.3 V

SWITCH

SW On Resistance

RDSON

ISW = 1.0 A

130

300

mΩ

SW Leakage Current

VSW = 20 V

0.01

μA

Peak Current Limit2

ICL

ADP1612, duty cycle = 70%

0.9

1.4

1.9

ADP1613, duty cycle = 70%

1.3

2.0

2.5

OSCILLATOR

Oscillator Frequency

fSW

FREQ = GND

500

650

720

kHz

FREQ = VIN

1.1

1.3

1.4

MHz

Maximum Duty Cycle

DMAX

COMP = open, VFB = 1 V, FREQ = VIN

FREQ Pin Current

IFREQ

FREQ = 3.6 V

μA

EN/FREQ LOGIC THRESHOLD

ADP1612, VIN = 1.8 V to 5.5 V; ADP1613, VIN = 2.5 V to 5.5 V

Input Voltage Low

VIL

0.3

Input Voltage High

VIH

1.6

SOFT START

SS Charging Current

ISS

VSS = 0 V

3.4

6.2

μA

SS Voltage

VSS

VFB = 1.3 V

1.2

UNDERVOLTAGE LOCKOUT (UVLO)

Undervoltage Lockout Threshold

ADP1612, VIN rising

1.70

ADP1612, VIN falling

1.62

ADP1613, VIN rising

2.25

ADP1613, VIN falling

2.16

THERMAL SHUTDOWN

Thermal Shutdown Threshold

150

°C

Thermal Shutdown Hysteresis

°C

1 This parameter specifies the average current while switching internally and with SW (Pin 5) floating.

2 Current limit is a function of duty cycle. See the

section for typical values over operating ranges.

Typical Performance Characteristics

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