ADP2230ACPZ-R7 datasheet(3/18 Pages) AD

Part #	ADP2230ACPZ-R7

Description	Dual 2 MHz, 800 mA, Synchronous, Low Quiescent Current Buck Regulator

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Data Sheet

ADP2230

SPECIFICATIONS

VIN = VENx = 5.0 V, VOUT = 3.3 V, TJ = −40°C to +125°C for minimum/maximum specifications, and TA = 25°C for typical specifications,

unless otherwise noted. All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC).

Table 1.

Parameter

Symbol

Test Conditions/Comments

Min

Typ

Max

Unit

SUPPLY

Input Voltage Range

VIN

2.3

6.5

V

Quiescent Current

IQ

VSYNC = GND, no load, device not switching

One channel enabled

8

23

μA

Both channels enabled

15

34

μA

Standby Current

VENx = 1 V

55

μA

Shutdown Current

ISD

VENx = GND, TJ = −40°C to +85°C

0.1

2.5

μA

Undervoltage Lockout

VIN Rising Threshold

2.23

2.28

V

VIN Falling Threshold

1.96

2.05

V

Soft Start Time

tSS

185

270

395

μs

FIXED AND ADJUSTABLE OUTPUT

Load Regulation PWM

∆VOUT/∆IOUT

IOUT = 0 mA to 800 mA

0.1

%/A

Line Regulation

∆VOUT/∆VIN

VIN = 2.3 V to 6.5 V, VOUT = 1.2 V, IOUT = 500 mA

0.1

%/V

PSM Rising Threshold

VIN = 5 V, VOUT = 3.3 V

230

mA

PSM Hysteresis

25

mA

FIXED OUTPUT VOLTAGE

Fixed VOUT Accuracy

VIN = 5 V, no load

VOUT = 1.2 V

VOUT_1.2V

1.168

1.2

1.220

V

VOUT = 1.8 V

VOUT_1.8V

1.748

1.8

1.851

V

VOUT = 3.3 V

VOUT_3.3V

3.202

3.3

3.363

V

Fixed VOUT FB Pin Current1

IFB_FIXED

VFB = 1.2 V

1.1

2.0

2.8

μA

ADJUSTABLE OUTPUT VOLTAGE

Feedback Voltage

VFB

0.774

0.8

0.818

V

Adjustable VOUT Range

VOUT_ADJ

0.8

6

V

Adjustable VOUT FB Pin Current

IFB_ADJ

VFB = 0.8 V

10

150

nA

SWITCHING CHARACERISTICS

On Resistance

VIN = 5 V, ISW = 400 mA

P-Channel

RDSON_P

230

325

mΩ

N-Channel

RDSON_N

180

275

mΩ

Current Limit

P-Channel

930

1300

1475

mA

N-Channel

300

500

625

mA

P-Channel Leakage Current

VIN = 5 V, VSW = GND, TJ = −40°C to +85°C

2

μA

Minimum On Time

tON-MIN

3

35

65

ns

SWx Node Discharge Resistor

250

340

Ω

Phase Shift Between SW1 and SW2

VSYNC = GND or VSYNC = VIN (no external clock)

180

Degrees

OSCILLATOR

Fixed PWM Oscillator Frequency

fSW_FIXED

VSYNC = GND or VSYNC = VIN

1600

2000

2300

kHz

External Clock Synchronization

Range

fSW_RANGE

1.5

2.5

MHz

External Clock Duty Cycle Range

20

85

%

SYNC Pin

High Threshold

1.3

V

Low Threshold

0.4

V

Leakage Current

VSYNC = GND or VSYNC = VIN

0.01

1

μA

Rev. A | Page 3 of 18

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