AP6503ASP-13 데이터 시트보기 (PDF) - Diodes Incorporated.

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AP6503ASP-13

240kHz 23V 3A SYNCHRONOUS DC/DC BUCK CONVERTER

Diodes Incorporated. 

AP6503A

Thermal Resistance (Note 6)

Note:

Symbol

θJA

θJC

Parameter

Junction to Ambient

Junction to Case

Rating

74

16

Unit

°C/W

°C/W

6. Test condition: SO-8EP: Device mounted on 1" x 1" FR-4 substrate PC board, 2oz copper, with minimum recommended pad on top layer and

thermal vias to bottom layer ground plane.

Recommended Operating Conditions (Note 7) (@TA = +25°C, unless otherwise specified.)

Note:

Symbol

Parameter

Min

VIN

Supply Voltage

4.75

TA

Operating Ambient Temperature Range

-40

7. The device function is not guaranteed outside of the recommended operating conditions.

Max

23

+85

Unit

V

°C

Electrical Characteristics (VIN = 12V, @TA = +25°C, unless otherwise specified.)

Symbol

IIN

IIN

RDS(ON)1

RDS(ON)2

ILIMIT

Parameter

Shutdown Supply Current

Supply Current (Quiescent)

High-Side Switch On-Resistance (Note 8)

Low-Side Switch On-Resistance (Note 8)

Peak HS Current Limit

ILIMIT

Valley LS Current Limit

ISW_LKG

High-Side Switch Leakage Current

AVEA

Error Amplifier Voltage Gain

(Note 8)

GEA

Error Amplifier Transconductance

GCS

COMP to Current Sense

Transconductance

fSW

Oscillator Frequency

fFB

Fold-back Frequency

DMAX

Maximum Duty Cycle

tON

VFB

OVP

Minimum On Time

Feedback Voltage

Feedback Overvoltage Threshold

VEN_Rising

ENLOCKOUT

EN Rising Threshold

EN Lockout Threshold Voltage

EN Lockout Hysteresis

INUVVTH VIN Undervoltage Threshold Rising

INUVHYS

ISS

tSS

VIN Undervoltage Threshold Hysteresis

Soft-Start Current

Soft-Start Period

TSD

Thermal Shutdown (Note 8)

Note: 8. Guaranteed by design.

Test Conditions

VEN = 0V

VEN = 2.0V, VFB = 1.0V

—

—

VOUT = 3.3V, Minimum duty

cycle

VOUT = 3.3V, From Drain to

Source

VEN = 0V, VSW = 0V,

VSW =12V

—

ΔIC = ±10µA

—

VFB = 0.75V

VFB = 0V

VFB = 800mV

—

TA = -40°C to +85°C

—

—

—

—

—

—

VSS = 0V

CSS = 0.1µF

—

Min

—

—

—

—

—

—

—

—

—

—

210

—

—

—

900

—

0.7

2.2

3.80

—

—

—

—

Typ

0.3

0.6

100

100

5.5

0.9

0

800

1,000

2.8

240

80

90

130

925

1.1

0.8

2.5

220

4.05

250

6

15

+160

Max

3.0

1.5

—

—

—

—

10

—

—

—

260

—

—

—

950

—

0.9

2.7

4.40

—

—

—

—

Unit

µA

mA

mΩ

mΩ

A

A

μA

V/V

µA/V

A/V

kHz

kHz

%

ns

mV

V

V

V

mV

V

mV

μA

ms

°C

AP6503A

Document number: DS36000 Rev. 4 - 2

4 of 15

www.diodes.com

March 2017

© Diodes Incorporated

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