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Diodes Incorporated AP3030KTR-E1
- Part No.:
- AP3030KTR-E1
- Manufacturer:
- Diodes Incorporated
- Category:
- LED Drivers
- Package:
- SOT-23-6
- Datasheet:
-
AP3030KTR-E1.pdf
- Description:
- IC LED DRVR RGLTR ANALOG SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:3,874
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Product details
Overview
AP3030KTR-E1 from BCD Semiconductor is a white LED step-up DC/DC converter IC designed to drive up to eight series-connected LEDs or ten LEDs in 2×5 parallel configuration for backlighting. It integrates a Schottky diode, operates at a fixed 1.2 MHz switching frequency, delivers up to 84% efficiency, and features output over-voltage protection (30 V clamp) and linear dimming via the CTRL pin. Used in compact portable displays requiring stable current and minimal external components.
For engineers reviewing the AP3030KTR-E1 datasheet, AP3030KTR-E1 pinout, AP3030KTR-E1 application, or AP3030KTR-E1 equivalent, key selection criteria include its integrated Schottky diode, 200 mV feedback reference, 1.2 MHz constant-frequency PWM control, OVP threshold of 30 V, and SOT-23-6 RoHS-compliant packaging with thermal resistance of 265 °C/W.
Technical Context
The AP3030KTR-E1 implements a current-mode boost topology with internal power switch and integrated Schottky diode, enabling compact LED driver designs without external rectification. Its 1.2 MHz oscillator ensures small passive component sizing-supporting 1 mm tall inductors and 0.22 µF output capacitors.
Feedback is regulated using a precision 200 mV reference at the FB pin, with ±12 mV tolerance over temperature. The CTRL pin provides three-state operation: enable (>1.8 V), disable (<50 mV), and analog dimming (0.05–1.8 V), directly modulating LED current without external PWM circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switching Frequency | Fixed 1.2 MHz - enables use of ultra-small 22 µH inductor and 0.22 µF ceramic output capacitor. |
| Feedback Reference Voltage | 200 mV ±12 mV - sets LED current via single external resistor; supports tight current matching across LED strings. |
| Output Over-Voltage Protection | 30 V clamp - protects LEDs and IC during open-circuit or LED failure; prevents voltage runaway in backlight systems. |
| Integrated Schottky Diode | Forward drop 0.7 V @ 150 mA - eliminates external diode, reduces board area and BOM count in space-constrained handhelds. |
| CTRL Pin Dimming Range | 0.05–1.8 V linear control - enables analog brightness adjustment without external PWM generator or filtering. |
| Efficiency | Up to 84% @ 3.6 V input, 8 LEDs - minimizes thermal load and extends battery life in portable LCD backlight applications. |
| Quiescent Current | 2.5 mA typical - maintains low standby power when enabled; shutdown current drops to 3.2 µA. |
Pinout & Package
The AP3030KTR-E1 is housed in a RoHS-compliant SOT-23-6 package (2.82 × 2.65 × 1.45 mm, 0.95 mm height), optimized for thermal dissipation (RθJA = 265 °C/W) and high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SW | Switch Node | Connects to inductor; carries pulsed current up to 550 mA; requires low-inductance layout to minimize EMI. |
| 2 GND | Power Ground | Main return path for switch, feedback, and control circuits; must be tied to low-impedance ground plane. |
| 3 FB | Voltage Feedback Input | Senses output current via resistor divider; 200 mV reference enables precise LED current regulation. |
| 4 CTRL | Enable/Dimming Control | Logic-level input: >1.8 V enables, <0.05 V disables, 0.05–1.8 V provides linear analog dimming. |
| 5 VOUT | Boost Output | Anode of internal Schottky diode; connects to LED string cathodes; clamped at 30 V during fault conditions. |
| 6 VIN | Input Supply | 2.5–16 V DC input; requires local 1 µF ceramic bypass capacitor near pin for stability and noise suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Inherent LED current uniformity | Series-string topology ensures identical current through all LEDs without external current-matching components. |
| No external Schottky diode required | Integrated diode reduces bill-of-materials cost and PCB footprint by eliminating discrete rectifier placement and routing. |
| Fixed-frequency PWM control | 1.2 MHz operation allows use of miniature 22 µH inductors and avoids audible noise in portable device environments. |
| Output over-voltage protection | 30 V active clamp prevents damage to LEDs and driver during open-circuit or partial-string failure conditions. |
| Single-resistor LED current setting | FB pin's 200 mV reference enables current programming with one external resistor-simplifies design and calibration. |
Applications
| Cellular Phone Backlight | Digital Camera Display |
|---|---|
Use Scenario: Driving 6–8 white LEDs for main LCD backlight in slim smartphone form factors. IC Role / Device Role / Timing Role: Boost converter with integrated diode and analog dimming control; regulates constant current independent of LED forward voltage variation. Use Value: Enables compact, efficient backlight solution with only 1 µF input cap, 0.22 µF output cap, and 22 µH inductor-reducing total solution size by >30% vs. discrete-diode alternatives. | Use Scenario: Powering dual-row LED arrays (2×5) for rear-view LCD in digital cameras with variable ambient light. IC Role / Device Role / Timing Role: Constant-current LED driver with CTRL-based linear dimming; maintains consistent luminance across temperature and battery voltage drift. Use Value: Achieves 84% peak efficiency at 3.6 V input, extending battery runtime while maintaining <±5% current accuracy across -40°C to +85°C. |
| LCD Module for GPS Receivers | PDA / Handheld Computer Display |
Use Scenario: Illuminating small-format monochrome or color LCDs in automotive-grade GPS navigation units. IC Role / Device Role / Timing Role: Fault-tolerant boost driver with 30 V OVP; sustains operation during load transients and open-LED events common in vibration-prone environments. Use Value: Integrated OVP eliminates need for external crowbar circuitry, reducing component count and improving system reliability under mechanical stress. | Use Scenario: Driving high-brightness LED backlights in ruggedized PDAs used in field service and logistics applications. IC Role / Device Role / Timing Role: Low-quiescent-current (2.5 mA) LED driver with 3.2 µA shutdown mode; supports long idle periods between user interactions. Use Value: Extends standby battery life beyond 72 hours while retaining instant-on capability via fast CTRL pin wake-up response (<10 µs). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar white LED boost driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP3031KTR-E1 | Same die, TSOT-23-6 package; RθJA = 265 °C/W but thinner profile (0.95 mm max); identical electrical specs. | Better suited for ultra-thin assemblies where height <1.0 mm is mandatory; same thermal derating curve. | Select when board stack height is constrained; no redesign needed beyond footprint and thermal pad layout. |
| RT9397BZSP | Fixed 1.2 MHz, 200 mV FB, but no integrated Schottky; requires external diode; OVP at 32 V. | Higher BOM count and larger solution size; less suitable for space-limited handhelds. | Choose only if legacy design already uses external diode and requires pin-to-pin compatibility with RT9397 family. |
Compared with AP3030KTR-E1, the AP3031KTR-E1 offers identical performance in a lower-profile package, while the RT9397BZSP demands external diode routing and increases PCB area-making AP3030KTR-E1 optimal for miniaturized, cost-sensitive backlight systems.
Availability
AP3030KTR-E1 is available at Aetrix Electronics and suitable for cellular phone backlighting, digital camera displays, and GPS receiver LCD modules requiring stable component supply, RoHS compliance, and long-term industrial availability.
Supply support for AP3030KTR-E1 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
BCD Semiconductor Manufacturing Limited is a Shanghai-based analog IC designer and foundry partner specializing in high-efficiency power management solutions for portable and consumer electronics.
The AP3030 belongs to BCD's white LED backlight driver product line, engineered specifically for space-constrained, battery-powered devices requiring high integration, low quiescent current, and robust fault protection.
FAQ
What is the maximum number of white LEDs the AP3030KTR-E1 can drive?
The AP3030KTR-E1 can drive up to eight white LEDs in series (with typical VF ≈ 3.45 V each, requiring ~27.6 V output) or ten LEDs in a 2×5 parallel configuration. Its 30 V over-voltage protection limits safe operation to configurations staying below this rail, and the internal switch current limit of 550 mA supports both topologies under standard 20 mA per LED conditions.
Does the AP3030KTR-E1 require an external Schottky diode?
No. The AP3030KTR-E1 integrates a Schottky diode with 0.7 V forward drop at 150 mA and low leakage (<0.1 µA at 23 V). This eliminates the need for an external diode, reducing component count, PCB area, and potential layout-induced losses-confirmed in Figure 10 and Table 1 of the datasheet.
How does the CTRL pin function for dimming and shutdown?
The CTRL pin provides three operational states: logic-high (>1.8 V) enables normal operation; logic-low (<0.05 V) places the IC in shutdown mode with 3.2 µA quiescent current; and voltages between 0.05 V and 1.8 V produce linear analog dimming by scaling the FB reference, directly adjusting LED current without external PWM circuitry or filtering.
What is the recommended input capacitor for stable operation?
A 1 µF X5R or X7R ceramic capacitor placed as close as possible to the VIN and GND pins is specified in the Typical Application Circuit (Figure 18). This value ensures sufficient charge reservoir for the 1.2 MHz switching cycle, suppresses input ripple, and maintains stability under transient load conditions-verified across -40°C to +85°C operating range.
AP3030KTR-E1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- -
- Frequency:
- 1.2MHz
- Dimming:
- Analog
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
AP3030KTR-E1 FAQ
1.How can I place an order for AP3030KTR-E1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP3030KTR-E1 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 AP3030KTR-E1 reliable?
The price and inventory of AP3030KTR-E1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP3030KTR-E1 is usually 5 days.
3.What payment methods are accepted for AP3030KTR-E1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP3030KTR-E1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP3030KTR-E1?
AP3030KTR-E1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP3030KTR-E1 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 AP3030KTR-E1?
For technical support, including AP3030KTR-E1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP3030KTR-E1 requirements.
6.How does Aetrix verify that AP3030KTR-E1 is sourced from the original manufacturer or authorized distributors?
All AP3030KTR-E1 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 AP3030KTR-E1 meets industry standards.
7.What is the process for return or replacement of AP3030KTR-E1?
All AP3030KTR-E1 units undergo pre-shipment inspection (PSI). If there is an issue with AP3030KTR-E1, 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 AP3030KTR-E1 part is unused and in its original packaging.
Return procedure for AP3030KTR-E1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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