ADPL12005/ADPL12006

20V, 5A/6A Fully Integrated Synchronous Buck

Converters

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Electrical Characteristics

(VSUP = VEN = 14V, TJ = -40°C to +150°C, unless otherwise noted. Typical values are at TA = +25°C under normal conditions, unless

otherwise noted. (See Note 1, Note 2))

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Supply Voltage Range

VSUP

3

20

V

Supply Current

ISUP_SHDN

VEN = 0V, TA = +25°C

4

6

μA

ISUP

VEN = high, VOUT = 3.3V, no load,

switching

20

SUP Undervoltage

Lockout

VSUP_UVLO_R

ISE

SUP voltage rising

2.945

3.025

3.175

V

VSUP_UVLO_F

ALL

SUP voltage falling

2.655

2.725

2.870

BIAS Undervoltage

Lockout

VBIAS_UVLO

BIAS voltage falling

1.53

1.58

1.63

V

BIAS Undervoltage Lock

VBIAS_UVLO_

HYS

BIAS UVLO hysteresis

50

mV

BIAS Voltage

VBIAS

1.8

V

BUCK CONVERTER

Output Voltage

Adjustable Range

VOUT

fSW = 400kHz

0.8

12

V

fSW = 1.5MHz

0.8

10

Feedback Voltage

Accuracy

VFB_PWM

PWM mode, no load

0.787

0.800

0.813

V

Feedback Leakage

Current

IFB

VFB = 0.8V, TA = +25°C

100

nA

High-Side Double

diffusion metal oxide

semiconductor field-

effect (DMOS)

On-Resistance

RDSON_HS

VBIAS = 1.8V, ILX = 2A

46

95

mΩ

Low-Side DMOS

On-Resistance

RDSON_LS

VBIAS = 1.8V, ILX = 2A

23

47

mΩ

High-Side DMOS

Current-Limit Threshold

ILIM

ADPL12005

6.5

7.5

8.5

A

ADPL12006

7.5

8.75

10

Low-Side DMOS

Negative Current-Limit

Threshold

INEG

ADPL12005

-3

A

ADPL12006

-3.5

LX Leakage

ILX_LKG

VSUP = 20V, VLX = 0V, or VLX = 20V,

TA = +25°C

1

μA

Soft-Start Ramp Time

tSS

fSW = 400kHz

2.5

ms

fSW = 1.5MHz

3.5

Minimum On-Time

tON

(See Note 3)

36

65

ns

Maximum Duty Cycle

DMAX

Dropout Mode

96

%

SWITCHING FREQUENCY

PWM Switching

Frequency

fSW

fSW = 400kHz

360

400

440

kHz

fSW = 1.5MHz

1.375

1.500

1.625

MHz

SYNC External Clock

Frequency

fSYNC

fSW = 400kHz

360

600

kHz

fSW = 1.5MHz

1.215

1.845

MHz

PGOOD OUTPUT

PGOOD Threshold

VPGOOD_THR VOUT rising

92

94

96

%