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Diodes Incorporated AP3602AKTR-G1
- Part No.:
- AP3602AKTR-G1
- Manufacturer:
- Diodes Incorporated
- Category:
- LED Drivers
- Package:
- SOT-23-6
- Datasheet:
-
AP3602AKTR-G1.pdf
- Description:
- IC LED DRVR RGLTR 100MA SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:13,135
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Product details
Overview
AP3602AKTR-G1 from BCD Semiconductor is a regulated 5V charge pump DC/DC converter in SOT-23-6 package, delivering 100mA continuous output current at ≥3.0V input and supporting 250mA peak for 100ms. It features 4% output voltage precision, 1.2MHz switching frequency, and active-low shutdown control-designed specifically for white LED backlight and flash driver applications in battery-powered handheld devices.
For engineers reviewing the AP3602AKTR-G1 datasheet, AP3602AKTR-G1 pinout, AP3602AKTR-G1 application, or AP3602AKTR-G1 equivalent, key selection criteria include regulated 5V output stability under variable input (2.7–5.0V), low 13μA quiescent current in active mode, <1μA shutdown supply current, thermal protection behavior, and minimal external component count (3 ceramic capacitors only).
Technical Context
The AP3602AKTR-G1 implements a two-phase switched-capacitor charge pump with internal 1.25V reference and comparator-based regulation. Output voltage is stabilized via an internal resistor divider network feeding a control comparator that enables/disables the 1.2MHz oscillator to maintain VOUT at 5.0V ±4%.
It operates in pulse-skipping idle mode when load demand drops, reducing quiescent current to 13μA, and enters full shutdown (<1μA) upon SHDN assertion. Thermal protection triggers at ~160°C junction temperature with 10°C hysteresis, cycling on/off during sustained short-circuit conditions without latch-up.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0V ±4% - tightly regulated for consistent LED forward bias across input and load variations |
| Continuous Output Current | 100mA @ VIN ≥3.0V - sufficient to drive 4× white LEDs (VF=3.2V) in series with 120Ω current-limiting resistors |
| Peak Output Current | 250mA for 100ms - supports camera flash burst mode without voltage droop |
| Quiescent Current | 13μA typical - extends battery life in always-on display backlight systems |
| Shutdown Supply Current | <1μA - near-zero power draw during system sleep states |
| Switching Frequency | 1.2MHz - enables use of small 1μF flying capacitor and reduces EMI compared to lower-frequency pumps |
| Input Voltage Range | 2.7V to 5.0V - compatible with single-cell Li-ion (3.0–4.2V) and dual-cell alkaline/nickel chemistries |
Pinout & Package
SOT-23-6 package with 1.27mm pitch, 2.9mm × 2.8mm footprint, and 1.45mm max height-optimized for space-constrained portable PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VOUT | Regulated output node | Delivers stable 5V to LED string; requires 1–22μF low-ESR ceramic bypass capacitor placed adjacent to pin |
| 2 GND | Power ground reference | Must connect to solid ground plane; CIN and COUT capacitors routed closest to this pin for noise suppression |
| 3 SHDN | Active-low enable/disable control | Pulled high to enable; driven low to reduce supply current to <1μA; must not float |
| 4 C− | Flying capacitor negative terminal | Connects to 1μF ceramic flying capacitor; layout proximity critical for efficiency and ripple performance |
| 5 VIN | Input supply rail | Accepts 2.7–5.0V; requires 1–22μF low-ESR ceramic bypass capacitor adjacent to pin |
| 6 C+ | Flying capacitor positive terminal | Completes charge pump switching loop; symmetric placement with C− minimizes parasitic inductance |
Key Features
| Feature | Design Value |
|---|---|
| Low quiescent current | 13μA active mode - preserves battery capacity in standby backlight operation |
| High output voltage precision | ±4% over temperature and line/load - ensures uniform LED brightness without external feedback |
| Integrated thermal protection | 160°C trip with 10°C hysteresis - prevents damage during flash-mode overload or PCB overheating |
| Minimal external components | Only three ceramic capacitors required - reduces BOM cost and board area vs. inductor-based boost converters |
| Fast turn-on time | 0.2ms @ no load - enables rapid backlight activation in UI wake-up events |
Applications
| Mobile Phone Backlight Driver | Camera Flash LED Driver |
|---|---|
Use Scenario: Driving 4-series white LEDs (VF ≈ 3.2V) in smartphone LCD backlight circuits powered by single-cell Li-ion (3.0–4.2V). IC Role / Device Role / Timing Role: Regulated 5V charge pump providing constant-current bias through external resistors; no timing interface required. Use Value: Eliminates need for inductor, reduces solution size by >40%, and maintains LED luminance within ±5% across battery discharge curve. |
Use Scenario: Delivering brief high-current pulses (250mA for ≤100ms) to xenon or high-brightness LED flash modules in mobile cameras. IC Role / Device Role / Timing Role: High-peak-current charge pump with fast transient response; enabled via host MCU GPIO during shutter actuation. Use Value: Achieves full flash intensity in <100ms while limiting average power draw to avoid battery voltage sag or thermal throttling. |
| MP3/MP4 Player Display Backlight | Handheld Barcode Scanner Illumination |
Use Scenario: Powering monochrome or color TFT backlights in portable audio/video players operating from 2.7–4.2V battery sources. IC Role / Device Role / Timing Role: Always-on or PWM-dimmable 5V supply; SHDN controlled by system power manager for display sleep/wake cycles. Use Value: Enables flicker-free dimming down to 1% brightness using external PWM without affecting regulation accuracy or efficiency. |
Use Scenario: Illuminating 2D barcode targets in compact industrial scanners powered by AA/AAA cells or rechargeable packs. IC Role / Device Role / Timing Role: Low-noise, low-EMI 5V source for high-intensity LED arrays; synchronized to image capture timing via SHDN edge. Use Value: Provides consistent illumination intensity across varying battery voltage (2.7–4.5V), ensuring reliable decode performance in low-light environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar regulated charge pump applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP3602BKTR-G1 | 4.5V nominal output (vs. 5.0V); 2.7–4.5V input range; 83% efficiency at 2.7V/50mA (vs. 92% for AP3602A) | Targeted at 3.3V-system LED strings or lower-VF red/green LEDs; unsuitable for 5V-tolerant white LED loads | Select when driving 3–4× lower-forward-voltage LEDs or when input is strictly ≤4.5V and 5V regulation is unnecessary |
| MAX682ESA+ | 5V output, but fixed 100kHz switching (vs. 1.2MHz); requires 4 external capacitors; no thermal shutdown | Lacks integrated overtemperature protection and uses larger external components; less suitable for space- and safety-critical handhelds | Consider only if legacy design compatibility or ultra-low EMI (not RF-sensitive) is prioritized over size, efficiency, and protection features |
Compared with AP3602BKTR-G1, the AP3602AKTR-G1 delivers higher output voltage and efficiency for white LED loads; versus MAX682ESA+, it offers 12× higher switching frequency, smaller passive components, and mandatory thermal safety-making it superior for modern compact, battery-sensitive designs.
Availability
AP3602AKTR-G1 is available at Aetrix Electronics and suitable for mobile phone backlight driver, camera flash LED driver, MP3/MP4 player display backlight, and handheld barcode scanner illumination requiring stable component supply, green RoHS-compliant packaging, and SOT-23-6 footprint compatibility.
Supply support for AP3602AKTR-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
BCD Semiconductor Manufacturing Limited is a Shanghai-based analog IC designer and foundry owner specializing in high-efficiency power management, LED drivers, and mixed-signal solutions for portable and consumer electronics.
The AP3602A/B series was developed to replace inductor-based boost converters in space-constrained battery-powered devices-emphasizing ultra-low quiescent current, integrated protection, and minimal external component count.
FAQ
What is the minimum input voltage required to sustain 100mA output current?
The AP3602AKTR-G1 requires VIN ≥3.0V to deliver 100mA continuous output current. Below 3.0V (down to 2.7V), maximum continuous output drops to 50mA per datasheet Section 5, due to reduced charge transfer efficiency in the flying capacitor circuit.
Can the AP3602AKTR-G1 drive more than four white LEDs in series?
No. With a regulated 5.0V output and typical white LED VF of 3.2V, the maximum practical series count is four (4 × 3.2V = 12.8V > 5V). The device is designed for parallel or series-parallel LED configurations using external current-setting resistors-not for higher-voltage strings.
How does the thermal protection behave during sustained short-circuit conditions?
Under output short-circuit, the AP3602AKTR-G1 limits current to ~300mA and enters thermal shutdown at ~160°C junction temperature. It cycles on/off with ~10°C hysteresis-re-enabling when temperature falls below ~150°C-preventing permanent damage while maintaining safe operating temperature.
Is the SHDN pin compatible with standard CMOS logic levels from a 3.3V microcontroller?
Yes. The SHDN pin has VIH = 1.4V (min) and VIL = 0.3V (max), fully compatible with 3.3V GPIO outputs. A 3.3V-high signal enables the device; a 0V-low signal disables it. No level-shifting is required, and the pin draws <1μA in either state.
AP3602AKTR-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):
- 2.7V
- Voltage - Supply (Max):
- 5V
- Voltage - Output:
- 4.8V ~ 5.2V
- Current - Output / Channel:
- 100mA
- Frequency:
- 1.2MHz
- Dimming:
- -
- Applications:
- Backlight, Camera Flash
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
AP3602AKTR-G1 FAQ
1.How can I place an order for AP3602AKTR-G1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP3602AKTR-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 AP3602AKTR-G1 reliable?
The price and inventory of AP3602AKTR-G1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP3602AKTR-G1 is usually 5 days.
3.What payment methods are accepted for AP3602AKTR-G1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP3602AKTR-G1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP3602AKTR-G1?
AP3602AKTR-G1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP3602AKTR-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 AP3602AKTR-G1?
For technical support, including AP3602AKTR-G1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP3602AKTR-G1 requirements.
6.How does Aetrix verify that AP3602AKTR-G1 is sourced from the original manufacturer or authorized distributors?
All AP3602AKTR-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 AP3602AKTR-G1 meets industry standards.
7.What is the process for return or replacement of AP3602AKTR-G1?
All AP3602AKTR-G1 units undergo pre-shipment inspection (PSI). If there is an issue with AP3602AKTR-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 AP3602AKTR-G1 part is unused and in its original packaging.
Return procedure for AP3602AKTR-G1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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