ADP2119ACPZ-1.2-R7 datasheet(3/24 Pages) AD

Part #	ADP2119ACPZ-1.2-R7

Description	2 A/1.25 A, 1.2 MHz, Synchronous, Step-Down DC-to-DC Regulators

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ADP2119/ADP2120

Rev. 0 | Page 3 of 24

SPECIFICATIONS

VIN = VPVIN = 3.3 V, EN = VIN, SYNC/MODE = VIN at TJ = −40°C to +125°C, unless otherwise noted.

Table 1.

Parameter

Symbol

Test Conditions/Comments

Min

Typ

Max

Unit

VIN and PVIN

VIN Voltage Range

VIN

2.3

5.5

V

PVIN Voltage Range

VPVIN

2.3

5.5

V

Quiescent Current

IVIN

No switching, SYNC/MODE = GND

150

200

μA

Switching, no load, SYNC/MODE = VIN

680

900

μA

Shutdown Current

ISHDN

VIN = VPVIN = 5.5 V, EN = GND

0.3

2

μA

VIN Undervoltage Lockout Threshold

UVLO

VIN rising

2.2

2.3

V

VIN falling

2

2.1

V

OUTPUT CHARACTERISTICS

Load Regulation1

ADP2119, IO = 0 A to 2 A

0.08

%/A

Load Regulation2

ADP2120, IO = 0 A to 1.25 A

0.08

%/A

Line Regulation1

ADP2119, IO = 1 A

0.05

%/V

Line Regulation2

ADP2120, IO = 1 A

0.05

%/V

FB

FB Regulation Voltage

VFB

VIN = 2.3 V to 5.5 V

0.591

0.6

0.609

V

FB Bias Current

IFB

VIN = 2.3 V to 5.5 V

0.01

0.1

μA

SW

High-Side On Resistance3

VIN = VPVIN = 3.3 V, ISW = 200 mA

145

190

mΩ

Low-Side On Resistance3

VIN = VPVIN = 3.3 V, ISW = 200 mA

70

100

mΩ

SW Peak Current Limit

High-side switch, VIN = VPVIN = 3.3 V (ADP2119)

2.5

3

3.5

A

High-side switch, VIN = VPVIN = 3.3 V (ADP2120)

1.6

2

2.4

A

SW Maximum Duty Cycle

VIN = VPVIN = 5.5 V, full frequency

100

%

SW Minimum On Time4

VIN = VPVIN = 5.5 V, full frequency

100

ns

TRK

TRK Input Voltage Range

0

600

mV

TRK-to-FB Offset Voltage

TRK = 0 mV to 500 mV

−15

+15

mV

TRK Input Bias Current

100

nA

FREQUENCY

Oscillator Frequency

fS

1.02

1.2

1.38

MHz

SYNC/MODE

Synchronization Range

1

2

MHz

SYNC Minimum Pulse Width

100

ns

SYNC Minimum Off Time

100

ns

SYNC Input High Voltage

1.3

V

SYNC Input Low Voltage

0.4

V

INTEGRATED SOFT START

Soft Start Time

All switching frequencies

1024

Clock

cycles

fS = 1.2 MHz

853

μs

PGOOD

Power-Good Range

FB rising threshold

105

110

115

%

FB rising hysteresis

2.5

%

FB falling threshold

85

90

95

%

FB falling hysteresis

2.5

%

Power-Good Deglitch Time

From FB to PGOOD

16

Clock

cycles

PGOOD Leakage Current

VPGOOD = 5 V

0.1

1

μA

PGOOD Output Low Voltage

IPGOOD = 1 mA

150

200

mV

PGOOD Output Low Resistor

IPGOOD = 1 mA

150

200

Ω

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