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Diodes Incorporated AP3036BKTR-G1
- Part No.:
- AP3036BKTR-G1
- Manufacturer:
- Diodes Incorporated
- Category:
- LED Drivers
- Package:
- SOT-23-6
- Datasheet:
-
AP3036BKTR-G1.pdf
- Description:
- IC LED DRVR RGLTR PWM SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:422,914
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Product details
Overview
AP3036BKTR-G1 from Diodes Incorporated is a white LED step-up converter IC designed to drive up to eight series-connected WLEDs in backlight systems, featuring a fixed 1.0MHz switching frequency, integrated Schottky diode, and 200mV feedback reference voltage for precise current regulation at 20mA typical output. It operates from 2.5V–16V input and delivers up to 84% efficiency in compact LCD module applications.
For engineers reviewing the AP3036BKTR-G1 datasheet, AP3036BKTR-G1 pinout, AP3036BKTR-G1 application, or AP3036BKTR-G1 equivalent, key selection criteria include its integrated boost switch and Schottky diode, OVP clamping at 30V, PWM dimming via CTRL pin, and SOT26 package compatibility with space-constrained portable displays.
Technical Context
The AP3036BKTR-G1 implements a constant-frequency current-mode PWM controller with internal 1.0MHz oscillator and ramp generator, enabling stable regulation of LED current through FB pin sensing against a 200mV reference. Its integrated N-channel MOSFET switch (360mV VCE(SAT) @ 250mA) and on-chip Schottky diode eliminate external power components required in discrete boost topologies.
OVP circuitry monitors VOUT and clamps output at 30V during open-LED or overvoltage fault conditions, while soft-start (100µs) prevents inrush current. CTRL pin supports three-state operation: enable (>1.5V), disable (<0.4V), and high-frequency PWM dimming with duty-cycle-dependent LED current control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switching Frequency | Fixed 1.0MHz - enables use of ultra-small 1mm-height inductors and 0.22µF ceramic output capacitor |
| Feedback Reference Voltage | 200mV ±6% - sets LED current via single external resistor (e.g., 10Ω → 20mA) |
| Output Overvoltage Protection | 30V clamping threshold - protects LEDs and IC during open-circuit or thermal runaway faults |
| Efficiency | Up to 84% @ 3.6V input, 5 LEDs - minimizes thermal load in battery-powered handheld devices |
| CTRL Pin Interface | Logic-level shutdown & PWM dimming - supports direct MCU GPIO control without level-shifting |
| Operating Temperature | −40°C to +85°C - qualified for industrial and consumer portable electronics environments |
| Quiescent Current | 3.1mA typ. - ensures low standby power draw when enabled but no LEDs active |
Pinout & Package
SOT26 package (3.0 × 2.8 × 1.1mm, 6-pin, matte tin-plated leads), JEDEC-compliant, moisture sensitivity level 3, RoHS/Green compliant (G1 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - CTRL | Enable/dimming control input | Accepts DC logic high (>1.5V) to enable, low (<0.4V) to shut down, or PWM signal for brightness control |
| 2 - VOUT | Boost output node | Connects to cathode of internal Schottky diode; feeds LED string anode via current-sense resistor |
| 3 - VIN | Main input supply | 2.5–16V input rail; requires local 1µF X5R/X7R bypass capacitor near pin |
| 4 - SW | Internal switch drain | Drives external inductor; switches at 1.0MHz with 90% max duty cycle |
| 5 - GND | Power and signal ground | Common return path for input, output, feedback, and control circuits; must be low-impedance |
| 6 - FB | Current-sense feedback input | Monitors voltage across external sense resistor; regulates LED current to maintain 200mV at pin |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Schottky diode | Eliminates external diode, reducing BOM count and PCB area; forward drop ≤0.7V @ 150mA |
| Inherently uniform LED current | Series-string topology ensures identical current through all 8 LEDs without per-LED balancing components |
| High-frequency PWM dimming | Supports >100kHz dimming signals without audible noise or visible flicker in display backlighting |
| Output overvoltage protection | Automatic 30V clamp prevents damage during LED open-circuit failure or cold-start overvoltage transients |
| Tiny passive component footprint | Enables full solution with only 22µH inductor (1mm height) and 0.22µF output capacitor |
Applications
| Cellular Phone Backlight | Digital Camera LCD Panel |
|---|---|
Use Scenario: Powering 6–8 white LEDs behind small-form-factor smartphone LCDs with dynamic brightness control. IC Role / Device Role / Timing Role: Constant-current boost controller regulating LED string current via FB pin, synchronized to 1.0MHz clock for EMI management. Use Value: Enables <1mm profile backlight solutions with <3.1mA quiescent current and seamless 0–100% PWM dimming without color shift. |
Use Scenario: Driving high-brightness WLED array in compact digital camera viewfinder and rear LCD. IC Role / Device Role / Timing Role: High-efficiency DC/DC converter delivering stable 20mA per LED under variable battery voltage (3.0–4.2V). Use Value: Achieves 84% peak efficiency at 3.6V input, minimizing heat generation in thermally constrained camera housings. |
| GPS Receiver Display | PDA Handheld Computer |
Use Scenario: Illuminating outdoor-readable monochrome or color LCD in automotive-grade GPS units operating from 9–16V vehicle supply. IC Role / Device Role / Timing Role: Input-voltage-tolerant boost regulator with OVP protecting against load-dump transients and open-LED faults. Use Value: Maintains regulated LED current across wide input range (2.5–16V) and survives 38V SW pin transient stress. |
Use Scenario: Providing adjustable backlight for QVGA or VGA resolution LCDs in legacy PDAs with Li-ion or AA battery sources. IC Role / Device Role / Timing Role: Low-quiescent-current (45µA shutdown) LED driver supporting both analog and PWM brightness control. Use Value: Extends battery life via 45µA shutdown current and efficient 1.0MHz operation that avoids interference with RF sections. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar white LED boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP3036CKTR-G1 | Same die, enhanced ESD rating (HBM 3000V vs. 2000V); identical electrical specs and pinout | Preferred for high-ESD-risk assembly lines or portable devices exposed to frequent handling | Select when higher ESD robustness is required without changing layout or firmware |
| AL8862SP-13 | Higher 1.3MHz switching frequency; external Schottky diode required; 250mV FB reference | Better suited for ultra-thin designs needing <0.8mm inductor height, but increases BOM and layout complexity | Choose only if 1.3MHz EMI profile or tighter board height constraints outweigh added component cost |
Compared with AP3036CKTR-G1, the AP3036BKTR-G1 offers lower ESD immunity but identical performance and footprint; versus AL8862SP-13, it trades higher integration and simpler design for slightly lower switching frequency and taller inductor tolerance.
Availability
AP3036BKTR-G1 is available at Aetrix Electronics and suitable for cellular phone backlight, digital camera LCD panel, and GPS receiver display applications requiring stable component supply, RoHS/Green compliance, and SOT26 package consistency.
Supply support for AP3036BKTR-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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The AP3036B belongs to Diodes' LED backlight driver product line, engineered specifically for space-constrained portable displays requiring high integration, low EMI, and robust fault protection in consumer and industrial markets.
FAQ
What is the maximum number of white LEDs the AP3036BKTR-G1 can drive?
The AP3036BKTR-G1 is specified to drive up to eight white LEDs in series, assuming each LED has a forward voltage of 3.45V at 20mA, resulting in a total string voltage of ~27.6V. The device's 30V OVP threshold and 38V SW pin rating provide sufficient margin for this configuration under worst-case temperature and aging conditions.
Does the AP3036BKTR-G1 require an external Schottky diode?
No. The AP3036BKTR-G1 integrates a Schottky diode on-die, eliminating the need for an external diode. This reduces bill-of-materials count, PCB area, and potential failure points. The integrated diode exhibits ≤0.7V forward drop at 150mA and ≤4µA reverse leakage at 27V.
How does the CTRL pin function in shutdown and dimming modes?
The CTRL pin serves three functions: applying ≥1.5V enables normal operation; ≤0.4V disables the IC, reducing quiescent current to 45µA typical; and a PWM signal (0.5–100kHz) applied to CTRL directly modulates LED brightness by controlling duty cycle, with linear current response verified up to 100kHz.
What is the recommended output capacitor value and type for stable operation?
The datasheet specifies a minimum 0.22µF X5R or X7R ceramic capacitor at the VOUT pin. This value ensures loop stability and low output ripple under full load. Larger values (e.g., 1µF) may be used to further reduce ripple but are not required for basic functionality or EMI compliance.
AP3036BKTR-G1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- DC DC Regulator
- Topology:
- Step-Up (Boost)
- Internal Switch(s):
- Yes
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 2.5V
- Voltage - Supply (Max):
- 16V
- Voltage - Output:
- -
- Current - Output / Channel:
- 550mA (Switch)
- Frequency:
- 1MHz
- Dimming:
- PWM
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
AP3036BKTR-G1 FAQ
1.How can I place an order for AP3036BKTR-G1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP3036BKTR-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 AP3036BKTR-G1 reliable?
The price and inventory of AP3036BKTR-G1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP3036BKTR-G1 is usually 5 days.
3.What payment methods are accepted for AP3036BKTR-G1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP3036BKTR-G1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP3036BKTR-G1?
AP3036BKTR-G1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP3036BKTR-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 AP3036BKTR-G1?
For technical support, including AP3036BKTR-G1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP3036BKTR-G1 requirements.
6.How does Aetrix verify that AP3036BKTR-G1 is sourced from the original manufacturer or authorized distributors?
All AP3036BKTR-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 AP3036BKTR-G1 meets industry standards.
7.What is the process for return or replacement of AP3036BKTR-G1?
All AP3036BKTR-G1 units undergo pre-shipment inspection (PSI). If there is an issue with AP3036BKTR-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 AP3036BKTR-G1 part is unused and in its original packaging.
Return procedure for AP3036BKTR-G1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP3036BKTR-G1 Tags
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BCR402RE6327HTSA1
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BCR430UXTSA2
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BCR420UE6433HTMA1
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BCR420UE6327HTSA1
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BCR421UE6327HTSA1
Infineon Technologies
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LYT1604D-TL
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HV9910CLG-G
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CL2N8-G
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BCR420UW6-7
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BCR421UW6-7
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BCR420UFD-7
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BCR421UFD-7
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