ADP5138ACPZ-2-R7 datasheet(5/23 Pages) AD

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Data Sheet

ADP5138

Rev. A | Page 5 of 23

BUCK REGULATOR SPECIFICATIONS

VAVIN = VPVIN1 = VPVIN2 = VPVIN3 = VPVIN4 = 5.0 V, TJ = −40°C to +125°C for minimum and maximum specifications, and TA = 25°C for

typical specifications, unless otherwise noted.

Table 2.

Parameter

Symbol

Test Conditions/Comments

Min

Typ

Max

Unit

FEEDBACK

FB1 to FB4 Regulation Voltage

VFB1 to VFB4

Adjustable version

0.788

0.8

0.812

Fixed Output Accuracy1

VOUT1 to VOUT4

−2

OUTPUT CHARACTERISTICS

Pulse-width modulation (PWM) mode

Load Regulation2

∆VOUT/∆IOUT

Output current (IOUT) from 0 A to 1 A, VAVIN = VPVINx = 5 V

0.3

%/A

Line Regulation2

∆VOUT/∆VPVIN

VAVIN = VPVINx = 4 V to 5.5 V, IOUT = 1 A

0.1

%/V

SWITCH NODE

High-Side On Resistance3

RDSON_H

VAVIN = VPVINx = 5 V, ISWx = 0.5 A

130

200

mΩ

Low-Side On Resistance3

RDSON_L

VAVIN = VPVINx = 5 V, ISWx = 0.5 A

120

200

mΩ

SWx Leakage Current

ISW_LK

VAVIN = VPVINx = 5 V, SWx = GND or SWx = VPVINx

0.1

µA

CURRENT LIMIT

High-Side Peak Current Limit

1.28

1.6

1.92

Low-Side Sink Current Limit

PWM SWITCHING FREQUENCY

fSW

3.2

3.4

MHz

PHASE SHIFT

Phase shift between channels

Degrees

SYNC

SYNC pin

Synchronization Range

2.8

3.5

MHz

SYNC Minimum On Time

100

SYNC Minimum Off Time

100

SYNC Input Voltage

High

1.2

Low

0.4

OUTPUT DISCHARGE RESISTANCE

RDISCHARGE1 to

RDISCHARGE4

100

SOFT START TIME

tSS1 to tSS4

425

500

575

µs

VOUT1 to VOUT4 are the output voltages on Channel 1 to Channel 4.

Bench characterization result.

Pin to pin measurement.

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