Diodes Incorporated

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The AP3012 is a high power, constant frequency, current mode PWM, inductor based, step-up (boost) converter. The converter operates at high frequency (1.5MHz) so that a small, low profile inductor can be used. The AP3012 has built-in overvoltage protection (OVP) to allow the device goes into shutdown mode when the output voltage exceeds the OVP threshold of 29V. The AP3012 is available in standard SOT-23-5 package.


· High Efficiency up to 81% · Adjustable Output Voltage up to 29V · Shutdown Current 1μA Typical · 1.5MHz Switching Frequency · 36V 500mA Rugged Integrated Bipolar Switch · Built-in Soft-start to Reduce Inrush Current During Start-up · On-chip Overvoltage Protection · Uses Low ESR Ceramic Output Capacitor · Uses Small Inductor


· LCD/OLED Display Bias Supply · White LED Driver for LCD Display Backlights · Cellular Phones

Product Specifications

Product Parameters

MinimumInput Voltage (V) 2.6 V
MaximumInput Voltage (V) 16 V
Minimum Output Voltage (V) ADJ V
Maximum Output Voltage (V) 29 V
HS RDS(ON) (mΩ) N/A mΩ
LS RDS(ON) (mΩ) N/A mΩ
Quiescent Current Typ (mA) 2.5 mA
Shutdown Current Typ (µA) 0.1 µA
Type Boost
Output Current (A) 0.5 A
Frequency Typ (Hz) 1.5M Hz
Efficiency (%) 85 %

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Recommended Soldering Techniques


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-2548 2021-10-08 2022-01-08 Additional Wafer Source (JKFAB), New Bill of Materials (BOM) with PdCu Bond Wire, and Assembly/Test (A/T) Site (CAT)