Diodes AP1513 Manuel d'utilisateur télécharger pdf (Page 4)

AP1513

PWM CONTROL 2A STEP-DOWN CONVERTER

AP1513 Rev. 4 4 of 9 JULY 2009

DS31053 www.diodes.com © Diodes Incorporated

Electrical Characteristics (VIN = 12V, T

= 25°C, unless otherwise specified)

Symbol Parameter Conditions Min. Typ. Max. Unit

Feedback Voltage I

OUT

= 0.1A 0.784 0.8 0.816 V

Feedback Bias Current I

OUT

= 0.1A - 0.1 0.5 µA

Switch Current -- 2.5 - - A

SSS

Current Consumption

During Power Off

= 0V - 10 - µA

∆V

OUT

Line Regulation V

= 5V~18V - 1 2 %

∆V

OUT

Load Regulation I

OUT

= 0.1 to 2A - 0.2 0.5 %

OSC

Oscillation Frequency Measure waveform at SW pin 240 300 400 KHz

OSC1

Frequency of Current Limit

or Short Circuit Protect

Measure waveform at SW pin 10 - - KHz

EN Pin Input Voltage

Evaluate oscillation at SW pin 2.0 - -

Evaluate oscillation stop at SW pin - - 0.8

EN Pin Input Leakage

Current

-- - 20 - µA

-- - -10 - µA

OCSET

OCSET Pin Bias Current -- 75 90 105 µA

Soft-Start Time -- 0.3 2 5 ms

DSON

Internal MOSFET Rdson

= 5V, V

= 0V - 110 150

mΩ

= 12V, V

= 0V - 70 100

EFFI Efficiency

= 12V, V

OUT

= 5V

OUT

= 2A

- 92 - %

Thermal Resistance

Junction-to-Ambient

SOP-8L (Note 3) - 134 -

C/W

Thermal Resistance

Junction-to-Case

SOP-8L (Note 3) - 22 -

C/W

Notes: 3. Test conditions: Device mounted on FR-4 PCB, 2"*2", 2oz copper minimum recommended pad layout, single-sided, PC boards.

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Diodes AP1513 Manuel d'utilisateur Page 4

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