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Diodes Incorporated AP3030KTTR-E1
- Part No.:
- AP3030KTTR-E1
- Manufacturer:
- Diodes Incorporated
- Category:
- LED Drivers
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
AP3030KTTR-E1.pdf
- Description:
- IC LED DRV RGLTR ANALOG TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:3,388
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Product details
Overview
AP3030KTTR-E1 from BCD Semiconductor is a white LED step-up DC/DC converter IC designed for backlighting in compact portable displays. It drives up to eight series-connected WLEDs or ten LEDs in 2×5 parallel configuration, features integrated Schottky diode, fixed 1.2 MHz switching frequency, 200 mV feedback reference, and output over-voltage protection (OVP) clamping at 30 V.
For engineers reviewing the AP3030KTTR-E1 datasheet, AP3030KTTR-E1 pinout, AP3030KTTR-E1 application, or AP3030KTTR-E1 equivalent, key selection considerations include its TSOT-23-6 package thermal resistance (60 °C/W), CTRL pin linear dimming capability (0.05–1.8 V threshold), and minimal external component count-requiring only a 22 µH inductor and 0.22 µF output capacitor.
Technical Context
The AP3030KTTR-E1 implements a constant-frequency current-mode boost controller with internal power switch and integrated Schottky diode. Its 1.2 MHz oscillator enables use of ultra-low-profile inductors (1 mm height) and small ceramic capacitors while maintaining stable regulation across input voltages from 2.5 V to 16 V.
Feedback is sensed via a single resistor connected to the FB pin with precise 200 mV ±12 mV reference voltage; OVP circuitry monitors VOUT and clamps output at 30 V during open-circuit or LED failure. The CTRL pin provides three-state control: enable (>1.8 V), disable (<0.05 V), and analog dimming (0.05–1.8 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switching Frequency | 1.2 MHz typical - enables use of miniature 22 µH inductors and 0.22 µF ceramic output capacitors |
| Feedback Reference Voltage | 200 mV ±12 mV - sets LED current via single external resistor; supports tight brightness control |
| OVP Threshold | 30 V - protects downstream circuitry during LED string open-circuit or disconnection |
| CTRL Pin Enable Threshold | 1.8 V min - compatible with standard 1.8 V/3.3 V logic interfaces without level-shifting |
| Efficiency | 84% max at 8-LED load - minimizes thermal stress and extends battery runtime in portable systems |
| Input Voltage Range | 2.5 V to 16 V - supports single-cell Li-ion (3.0–4.2 V) and multi-cell alkaline/NiMH inputs |
| Thermal Resistance θJC | 60 °C/W - enables reliable operation in TSOT-23-6 package at up to 85 °C ambient with proper PCB copper area |
Pinout & Package
AP3030KTTR-E1 is housed in a thermally enhanced TSOT-23-6 package (2.8 × 2.6 × 0.95 mm, 0.65 mm pitch), optimized for space-constrained backlight applications. The exposed pad is not electrically connected but improves thermal dissipation when soldered to PCB ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SW | Switch node | Connects to inductor; carries pulsed high-current switching waveform; requires low-inductance layout |
| 2 GND | Power and signal ground | Primary return path for switch current and feedback reference; must be low-impedance connection to PCB ground plane |
| 3 FB | Voltage feedback input | Senses output current via resistor divider; 200 mV reference enables precise LED current setting |
| 4 CTRL | Enable/dimming control | Three-state interface: disable (<0.05 V), linear dimming (0.05–1.8 V), enable (>1.8 V) |
| 5 VOUT | Boost output | High-side output node connected to cathode of integrated Schottky diode; supplies LED string anode |
| 6 VIN | Input supply | Accepts 2.5–16 V input; requires local 1 µF ceramic bypass capacitor near pin |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Schottky diode | Eliminates external diode, reducing BOM count, board area, and forward-drop losses |
| Uniform LED current sharing | Inherent current matching across series/parallel LED strings without external current mirrors |
| Output over-voltage protection | Hardware-clamped 30 V OVP prevents damage during LED open-circuit or cable disconnect events |
| Soft-start function | 300 µs internal ramp limits inrush current and prevents input voltage droop at startup |
| Low quiescent current | 2.5 mA typical operating IQ and 3.2 µA shutdown IQ extend battery life in always-on display systems |
Applications
| Cellular Phone Backlight | Digital Camera LCD Backlight |
|---|---|
|
Use Scenario: Driving 6–8 white LEDs in series for main display backlight in slim smartphones with Li-ion battery supply. IC Role / Device Role / Timing Role: Constant-current boost controller regulating LED string current at 20 mA with 1.2 MHz switching to minimize EMI and filter size. Use Value: Enables full-brightness operation down to 3.0 V battery voltage while maintaining >82% efficiency and thermal safety in 2.8 mm × 2.6 mm footprint. |
Use Scenario: Powering dual 5-LED parallel strings for high-resolution rear LCD in compact digital cameras. IC Role / Device Role / Timing Role: Dual-string current regulator using shared FB sensing and integrated diode to eliminate cross-talk and ensure uniform luminance. Use Value: Achieves consistent brightness across both rows without external current-setting resistors or matching components. |
| GPS Receiver Display | PDA Main Screen Backlight |
|
Use Scenario: Illuminating monochrome or color TFT display in automotive-grade GPS units operating across -40 °C to +85 °C ambient. IC Role / Device Role / Timing Role: Temperature-stable LED driver with ±12 mV FB reference drift over full junction range and robust OVP for vibration-prone environments. Use Value: Maintains calibrated brightness across temperature without software compensation; OVP prevents display damage during cold-start LED failure. |
Use Scenario: Supplying 20 mA per string to 8-LED backlight in legacy PDA designs with limited PCB real estate and aging NiMH batteries. IC Role / Device Role / Timing Role: Low-input-voltage capable boost converter supporting 2.5 V minimum VIN and linear CTRL dimming for user-adjustable brightness. Use Value: Extends usable battery life by 18% versus discrete solutions due to 84% peak efficiency and sub-µA shutdown leakage. |
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 |
|---|---|---|---|
| AP3031KTTR-E1 | Same die, SOT-23-6 package (RθJA = 265 °C/W vs. TSOT-23-6's 60 °C/W); identical electrical specs | Better suited for low-power, non-thermally constrained designs where board height >1.0 mm is acceptable | Select when PCB layout allows larger footprint and thermal management relies on ambient convection rather than copper heatsinking |
| RT9397BZSP | Higher 1.5 MHz switching frequency; no integrated Schottky; requires external diode; 190 mV FB reference | Supports higher LED string voltages (up to 36 V) but increases BOM count and reduces efficiency by ~3–5% | Prefer when system requires >30 V OVP headroom or existing design already uses external diode layout |
Compared with AP3030KTTR-E1, AP3031KTTR-E1 trades thermal performance for package compatibility, while RT9397BZSP offers higher voltage margin at the cost of integration and efficiency-making AP3030KTTR-E1 optimal for space- and thermally constrained portable backlighting.
Availability
AP3030KTTR-E1 is available at Aetrix Electronics and suitable for cellular phone backlighting, digital camera LCD modules, and GPS receiver displays requiring stable component supply, RoHS-compliant packaging, and production-ready TSOT-23-6 footprint compatibility.
Supply support for AP3030KTTR-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 and power IC designer specializing in high-efficiency power management solutions for portable and consumer electronics.
The AP3030 belongs to BCD's LED backlight driver product line, engineered specifically for ultra-compact, battery-powered displays requiring minimal external components and guaranteed thermal reliability in TSOT-23-6 form factor.
FAQ
What is the maximum LED string voltage supported by AP3030KTTR-E1?
The AP3030KTTR-E1 features output over-voltage protection triggered at 30 V, limiting safe continuous LED string voltage to ≤28 V under normal operation. With typical white LED forward voltage of 3.45 V at 20 mA, this supports up to eight series LEDs (27.6 V) or two parallel strings of five LEDs each (27.6 V total). Exceeding 30 V activates clamping, preventing damage but halting regulation.
Can AP3030KTTR-E1 drive mixed-color LED strings (e.g., RGB)?
No-AP3030KTTR-E1 is optimized exclusively for white LED strings with forward voltage ~3.0–3.6 V per diode. Its 200 mV feedback reference and current-sensing architecture assume uniform VF characteristics. Driving RGB strings would cause severe current mismatch due to differing VF slopes and temperature coefficients, risking overcurrent in low-VF diodes and under-brightness in high-VF diodes.
How does CTRL pin voltage affect LED brightness?
The CTRL pin provides true linear analog dimming: LED current scales proportionally with applied CTRL voltage between 0.05 V and 1.8 V. At 0.05 V, output is disabled; at 1.8 V, full rated current (e.g., 20 mA) flows; at 0.9 V, current is approximately 50%. This relationship holds across temperature and input voltage, enabling smooth, flicker-free brightness control without PWM modulation.
Is an external compensation network required for AP3030KTTR-E1 stability?
No-AP3030KTTR-E1 uses internal compensation optimized for standard 22 µH inductors and 0.22 µF ceramic output capacitors. Stability is guaranteed across all recommended operating conditions (VIN = 2.5–16 V, IOUT = 0–25 mA, TA = −40 to +85 °C) without external RC networks. Adding external compensation may degrade phase margin and cause oscillation or poor transient response.
AP3030KTTR-E1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-23-6 Thin, TSOT-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:
- TSOT-23-6
AP3030KTTR-E1 FAQ
1.How can I place an order for AP3030KTTR-E1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP3030KTTR-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 AP3030KTTR-E1 reliable?
The price and inventory of AP3030KTTR-E1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP3030KTTR-E1 is usually 5 days.
3.What payment methods are accepted for AP3030KTTR-E1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP3030KTTR-E1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP3030KTTR-E1?
AP3030KTTR-E1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP3030KTTR-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 AP3030KTTR-E1?
For technical support, including AP3030KTTR-E1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP3030KTTR-E1 requirements.
6.How does Aetrix verify that AP3030KTTR-E1 is sourced from the original manufacturer or authorized distributors?
All AP3030KTTR-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 AP3030KTTR-E1 meets industry standards.
7.What is the process for return or replacement of AP3030KTTR-E1?
All AP3030KTTR-E1 units undergo pre-shipment inspection (PSI). If there is an issue with AP3030KTTR-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 AP3030KTTR-E1 part is unused and in its original packaging.
Return procedure for AP3030KTTR-E1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP3030KTTR-E1 Tags
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BCR402RE6327HTSA1
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BCR430UXTSA2
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BCR420UE6433HTMA1
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HV9910CLG-G
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CL2N8-G
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BCR420UW6-7
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BCR420UFD-7
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BCR421UFD-7
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