AP3598A datasheet(6/28 Pages) DIODES

Part #	AP3598A

Description	COMPACT DUAL-PHASE SYNCHRONOUS-RECTIFIED BUCK CONTROLLER

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Manufacturer	DIODES [Diodes Incorporated]

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6 / 28 page

AP3598A

Document number: DS37261 Rev. 2 - 2

6 of 28

www.diodes.com

November 2014

AP3598A

A Product Line of

Diodes Incorporated

Electrical Characteristics (VCC = 12V, VPCC = 12V, TA = +25ºC, unless otherwise specified.)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

SUPPLY VOLTAGE

ICC

Supply Current

HGATE and LGATE

Open, Switching

–

5

–

mA

ICC_Q

Quiescent Supply Current

No Switching

–

4

–

mA

ISHDN

Shutdown Supply Current

Shutdown

–

4

–

mA

POR

VCCRTH

Under Voltage Lockout Threshold for

VCC

–

3.9

4.1

4.3

V

VCCHYS

Hysteresis for VCC

–

0.4

–

V

VPCCRTH

Under Voltage Lockout Threshold for

PVCC

–

3.9

4.1

4.3

V

VPCCHYS

Hysteresis for PVCC

–

0.4

–

V

REFERENCE VOLTAGE

VREF

Reference Voltage Accuracy

IREF = 100µA, TA =

+25ºC

1.98

2.00

2.02

V

IREF = 100µA,

TA = 0 to +150ºC

1.97

–

2.03

∆VREF

Reference Voltage Load Regulation

IREF = 0 to 2mA

-5

–

5

mV

IREF

VREF Maximum Output Current

–

10

–

mA

ERROR AMPLIFIER

AO

Open Loop DC Gain

Guaranteed by design

70

80

–

dB

GBW

Gain-Bandwidth Product

CLOAD = 5pF,

Guaranteed by design

–

20

–

MHz

SR

Slew Rate

Guaranteed by design

15

20

–

V/µs

ICOMP

Maximum Current (Sink and Source)

VCOMP = 1.6V

1.5

2.0

–

mA

FREQUENCY SETTING

VFS

FS Voltage

RFS = 33kΩ

–

1

–

V

–

Switching Frequency Setting Range

–

200

–

500

kHz

fOSC

Free Run Switching Frequency

RFS = 33kΩ

270

300

330

kHz

∆fOSC

Switching Frequency Accuracy

fOSC = 200kHz to 500kHz

-15

–

15

%

OSCILLATOR

–

Maximum Duty Cycle

–

35

40

–

%

–

Minimum Duty Cycle

–

0

–

%

∆VOSC

Ramp Amplitude

VCC = 12V

–

3.5

–

V

ENABLE FUNCTION

VENIH

Enable High Threshold

–

1.4

–

V

VENIL

Enable Low Threshold

–

0.6

V

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