Diodes Incorporated
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AP3039 (Not Recommended for new design)

NRND = Not Recommended for New Design

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AP3039 is a current mode high voltage low-side Nchannel MOSFET controller which is ideal for boost regulators. It contains all the features needed to implement single ended primary topology DC/DC converters. The input voltage range of AP3039 is from 5V to 27V. Its operation frequency is adjustable from 150kHz to 1MHz. The AP3039 has UVLO (Under Voltage Lock Out) circuit. It uses two external resistors to set the UVLO voltage. The AP3039 also has an over output voltage protection to limit the output voltage. The OVP voltage can be set through external resistors. If the output voltage is higher than the OVP high threshold point, it will disable the driver, when the output voltage drops to the OVP low threshold point, it will enable the driver. It also features a soft start to reduce the inrush current when power on, the soft start time can be set through an external capacitor.


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Product Specifications

Product Parameters

Dimming PWM
Efficiency (%) 92
Function Boost Controller
MaximumInput Voltage (V) 27
Maximum Output Current per Channel External MOSFET
Maximum Output Voltage (V) External MOSFET
MinimumInput Voltage (V) 5
Number of Regulated Output Channels 1
OperatingTemperatureRange  (°C) -40 to 85
Quiescent Current (µA) 3
Soft Start Yes
Standby Quiescent Current (µA) 1
Switching Frequency (MHz) ADJ 0.15  to  1
Typical Over-Current Protection Current 110/RCS
VFB 500

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Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN # Issue Date Implementation Date Subject
PCN-2364 2018-10-04 2019-04-04 Device End of Life (EOL)
PCN-2342 2018-05-31 2018-11-30 Device End of Life (EOL)