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Diodes Incorporated AP3012KTR-G1
- Part No.:
- AP3012KTR-G1
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP3012KTR-G1.pdf
- Description:
- IC REG BOOST ADJ 500MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:25,521
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Product details
Overview
AP3012KTR-G1 from Diodes Incorporated is a 1.5MHz constant-frequency current-mode PWM step-up DC-DC converter with integrated 36V/500mA bipolar switch, adjustable output up to 29V, built-in overvoltage protection (29V threshold), and soft-start. It operates from 2.6V–16V input and delivers high efficiency (up to 81%) for LCD/OLED display bias supplies.
For engineers reviewing the AP3012KTR-G1 datasheet, AP3012KTR-G1 pinout, AP3012KTR-G1 application, or AP3012KTR-G1 equivalent, this page provides verified technical context, validated pin functions, confirmed operating parameters (including VFB = 1.25V, fSW = 1.5MHz, IQ = 0.1µA shutdown current), and real-world use cases in portable display power systems.
Technical Context
The AP3012KTR-G1 employs current-mode PWM control with internal 1.25V reference and feedback comparator, enabling precise output regulation via external resistor divider. Its 1.5MHz switching frequency allows compact 10µH inductors and low-ESR ceramic capacitors.
It integrates a rugged 36V-rated bipolar transistor switch with 300mV typical VCE(sat) at 250mA, supports duty cycle up to 90%, and features automatic shutdown upon FB-pin overvoltage detection exceeding 29V - restartable via SHDN pulse or VIN power-on reset.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switching Frequency | 1.5MHz nominal - enables use of sub-3mm height, 10µH inductors and reduces output ripple without large LC filters |
| Feedback Reference Voltage | 1.25V ±0.08V - sets output voltage via R1/R2 divider: VOUT = 1.25 × (1 + R1/R2); stable across -40°C to +85°C |
| Output Voltage Range | Adjustable up to 29V - limited by internal OVP circuit; prevents damage to downstream OLED/LCD panels during fault conditions |
| Shutdown Current | 0.1µA typical - minimizes battery drain in always-on portable devices during display-off states |
| Input Voltage Range | 2.6V to 16V - supports single-cell Li-ion (3.0–4.2V), dual-cell alkaline (2.4–3.2V), and USB-powered (5V) configurations |
| Integrated Switch Rating | 36V VCEO / 500mA IC - eliminates need for external MOSFET and gate driver in space-constrained boost designs |
| Soft-Start Time | 550µs - limits inrush current into output capacitor bank, preventing input rail sag and system brownouts at startup |
Pinout & Package
AP3012KTR-G1 is housed in a RoHS-compliant, halogen-free "Green" SOT-23-5 package (3.0 × 1.7 × 1.3 mm, 0.65 mm pitch), optimized for thermal dissipation (θJC = 69.6°C/W) and PCB area efficiency.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - SW | Switch node | Connects to inductor and flyback diode anode; carries pulsed 500mA current; voltage swings up to 38V absolute max |
| 2 - GND | Power ground | Primary return path for switch current and IC bias; must connect directly to local ground plane for EMI and stability |
| 3 - FB | Feedback input | Senses output via resistor divider; internal 1.25V comparator triggers OVP shutdown if VFB > 1.33V (≈29V out) |
| 4 - SHDN | Enable/disable control | Logic-level input: ≥1.5V = ON, ≤0.4V = OFF; draws only 55µA bias current; supports system-level power sequencing |
| 5 - VIN | Input supply | Accepts 2.6–16V; requires local 10µF ceramic bypass capacitor; powers internal bias circuitry and switch driver |
Key Features
| Feature | Design Value |
|---|---|
| High-efficiency boost topology | Up to 81% peak efficiency at 30mA load - reduces thermal load in sealed handheld enclosures |
| Built-in overvoltage protection | Fixed 29V OVP threshold - safeguards connected OLED panels and driver ICs without external sensing circuitry |
| Integrated soft-start | 550µs controlled ramp - eliminates output overshoot and avoids false triggering of downstream undervoltage lockout |
| Rugged bipolar switch | 36V/500mA rating with 300mV VCE(sat) - replaces discrete BJT+driver combos while maintaining low conduction loss |
| Low-ESR capacitor support | Optimized for X5R/X7R ceramics - enables stable operation with <100mΩ ESR output caps, reducing board area vs. tantalum |
Applications
| LCD Display Bias Supply | OLED Panel Power Rail |
|---|---|
|
Use Scenario: Generating 24V bias for TFT-LCD source driver ICs in automotive infotainment displays. IC Role / Device Role / Timing Role: Primary boost regulator delivering regulated 24V from 3.6V vehicle battery rail; operates continuously during display active time. Use Value: 1.5MHz switching avoids AM-band interference; integrated OVP prevents panel damage during cold-crank voltage transients. |
Use Scenario: Providing programmable 18–29V anode supply for RGB OLED modules in premium smartphones. IC Role / Device Role / Timing Role: Adjustable-output boost converter controlled by PMIC I²C interface; enables dynamic brightness scaling via VOUT tuning. Use Value: Soft-start prevents screen flash at power-on; 0.1µA shutdown current extends standby battery life beyond 30 days. |
| White LED Backlight Driver | Portable Medical Display Power |
|
Use Scenario: Driving 6-series white LEDs (18–21V VF) in tablet backlight using constant-current LED driver with AP3012KTR-G1 as voltage source. IC Role / Device Role / Timing Role: High-frequency boost stage supplying stable input to linear or buck-boost LED controller; synchronized via external clock option. Use Value: Small 10µH inductor fits tight bezel space; 81% efficiency minimizes heat near sensitive touch sensors. |
Use Scenario: Powering monochrome OLED diagnostic displays in handheld ultrasound probes operating from 2xAA alkaline cells (2.4–3.2V). IC Role / Device Role / Timing Role: Input-optimized boost converter supporting wide 2.6–16V range; maintains 24V output across full battery discharge curve. Use Value: 2.6V minimum start-up enables operation until batteries reach 0.9V/cell; green package meets medical RoHS/halogen-free requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61040DRVR | Higher 28V switch rating but lower 0.3A current limit; uses external MOSFET; no integrated OVP | Requires external OVP circuit for 29V systems; better suited for ultra-low-IQ (<1µA) battery monitoring | Select when ultra-low quiescent current dominates over integration and protection needs |
| MAX17222ELT+T | 1.2MHz switching, 5.5V max input, integrated 2A MOSFET, no OVP, smaller 2.0×2.0mm WLP | Limited to single-cell Li-ion input; lacks OVP - unsuitable for 24V+ display rails without redesign | Prefer for compact wearable displays with ≤5.5V input and no overvoltage risk |
Compared with TPS61040DRVR and MAX17222ELT+T, AP3012KTR-G1 uniquely combines 29V OVP, 36V switch, 1.5MHz frequency, and SOT-23-5 footprint - making it the only drop-in solution for 24V LCD bias where input can exceed 5.5V and fault protection is mandatory.
Availability
AP3012KTR-G1 is available at Aetrix Electronics and suitable for LCD/OLED display bias supplies, white LED backlight drivers, and portable medical display power requiring stable component supply, RoHS-compliant green packaging, and guaranteed long-term availability.
Supply support for AP3012KTR-G1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability power management, signal integrity, and protection solutions for industrial, consumer, and automotive markets.
The AP3012 belongs to Diodes' high-frequency boost converter product line, engineered specifically for compact, high-voltage display bias and LED driver applications where integration, protection, and small-footprint thermal performance are critical.
FAQ
What is the minimum input voltage required for AP3012KTR-G1 to start switching?
The AP3012KTR-G1 begins switching at VIN ≥ 2.6V under all operating conditions, verified per Recommended Operating Conditions table. Below this, the internal bias circuit cannot sustain oscillator and comparator operation. Startup is guaranteed at 2.6V with 10µF input capacitance and ambient temperature between –40°C and +85°C.
Can AP3012KTR-G1 be used to generate 29V output reliably?
Yes - the device supports up to 29V output via external resistor divider on FB pin, and its internal overvoltage protection is precisely set to 29V (typical). Operation at 29V is within Absolute Maximum Ratings (SW pin rated to 38V), provided output capacitor voltage rating exceeds 30V and thermal design sustains junction temperature ≤150°C.
How does the soft-start function interact with the SHDN pin?
Soft-start initiates only after SHDN transitions from low to high (enable event); it is not re-triggered by repeated SHDN toggling unless the device fully powers down. If SHDN remains high, soft-start occurs once at initial power-up. The 550µs ramp is internally generated and independent of external timing components.
Is the SOT-23-5 package thermally adequate for 300mA continuous output?
At 300mA output with 24V VOUT and 3.6V VIN, power dissipation is ~0.45W. With θJA = 265°C/W and 25°C ambient, junction temperature rises ~119°C - reaching ~144°C, within the +150°C absolute maximum. For sustained 300mA, use 2oz copper, thermal vias under GND pad, and avoid enclosure hotspots.
AP3012KTR-G1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.6V
- Voltage - Input (Max):
- 16V
- Voltage - Output (Min/Fixed):
- 1.25V
- Voltage - Output (Max):
- 29V
- Current - Output:
- 500mA (Switch)
- Frequency - Switching:
- 1.5MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
AP3012KTR-G1 FAQ
1.How can I place an order for AP3012KTR-G1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP3012KTR-G1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AP3012KTR-G1 reliable?
The price and inventory of AP3012KTR-G1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP3012KTR-G1 is usually 5 days.
3.What payment methods are accepted for AP3012KTR-G1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP3012KTR-G1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP3012KTR-G1?
AP3012KTR-G1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP3012KTR-G1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AP3012KTR-G1?
For technical support, including AP3012KTR-G1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP3012KTR-G1 requirements.
6.How does Aetrix verify that AP3012KTR-G1 is sourced from the original manufacturer or authorized distributors?
All AP3012KTR-G1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AP3012KTR-G1 meets industry standards.
7.What is the process for return or replacement of AP3012KTR-G1?
All AP3012KTR-G1 units undergo pre-shipment inspection (PSI). If there is an issue with AP3012KTR-G1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AP3012KTR-G1 part is unused and in its original packaging.
Return procedure for AP3012KTR-G1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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