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Diodes Incorporated AP7335-30SNG-7
- Part No.:
- AP7335-30SNG-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 6-UDFN Exposed Pad
- Datasheet:
-
AP7335-30SNG-7.pdf
- Description:
- IC REG LINEAR 3V 300MA 6DFN2020
- Quantity:
- Payment:
- Shipping:
Inventory:4,938
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Product details
Overview
AP7335-30SNG-7 from Diodes Incorporated is a fixed-output 3.0V, 300mA low-dropout linear regulator in DFN2020-6 package with 35μA quiescent current, 150mV dropout at full load, 65dB PSRR at 1kHz, and fast 220μs startup-designed for battery-powered portable electronics requiring stable, ultra-low-power voltage regulation.
For engineers reviewing the AP7335-30SNG-7 datasheet, AP7335-30SNG-7 pinout, AP7335-30SNG-7 application, or AP7335-30SNG-7 equivalent, key selection criteria include output accuracy (±2%), thermal shutdown threshold (145°C), EN pin logic thresholds (VIH = 1.4V, VIL = 0.4V), stability with 1μF ceramic output capacitor, and compatibility with 2V–6V input range.
Technical Context
The AP7335-30SNG-7 integrates a PMOS pass element, precision 0.8V bandgap reference, error amplifier, current-limit circuitry, and thermal shutdown protection. Its fixed 3.0V output eliminates external feedback resistors, simplifying layout while maintaining ±2% output accuracy across –40°C to +85°C ambient.
It delivers fast transient response to load steps from 10mA to 300mA with <100mV undershoot/overshoot, enabled by low output impedance and internal compensation optimized for 1μF ceramic capacitors. The EN pin supports active-high sequencing control with sub-1μA shutdown current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0V ±2% over temperature and load ensures reliable core/sensor rail regulation without trimming. |
| Max Output Current | 300mA continuous-supports single-core microcontrollers, Bluetooth radios, and low-power displays. |
| Quiescent Current | 35μA typical-enables >1-year battery life in always-on sensor nodes powered by CR2032 cells. |
| Dropout Voltage | 150mV at 300mA-allows operation down to 3.15V input, extending usable battery voltage range. |
| PSRR | 65dB at 1kHz-rejects switching noise from DC-DC converters feeding the LDO input. |
| Startup Time | 220μs-enables rapid wake-up from deep-sleep modes in portable devices. |
| Thermal Shutdown | 145°C trigger with 15°C hysteresis-prevents permanent damage during sustained overload or poor PCB heatsinking. |
Pinout & Package
AP7335-30SNG-7 uses the DFN2020-6 package (2.0mm × 2.0mm × 0.6mm, 0.5mm pitch) with exposed thermal pad for enhanced power dissipation. Pin 1 (EN) is top-left when marking dot is oriented top-left; pin 6 (NC) is bottom-right.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 3) | Input voltage supply | Accepts 2V–6V; requires ≥1μF ceramic bypass capacitor placed adjacent to pin for noise immunity. |
| GND (Pin 2) | Power ground reference | Low-impedance return path; must connect directly to thermal pad and system ground plane. |
| EN (Pin 1) | Enable control input | Active-high logic: device enabled when ≥1.4V; disabled when ≤0.4V; draws <1μA in shutdown. |
| OUT (Pin 4) | Regulated output | Delivers stable 3.0V; requires ≥1μF ceramic capacitor with ESR >15mΩ for stability. |
| NC (Pins 5, 6) | No connection | Not internally bonded; must be left floating or tied to GND per layout best practice-no electrical function. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ | 35μA quiescent current enables multi-year operation on coin-cell batteries in IoT endpoints. |
| Fast transient response | Stable under 10mA ↔ 300mA load steps with minimal voltage deviation-critical for GSM/TDMA burst-mode loads. |
| Low-ESR capacitor support | Stable with 1μF ceramic output capacitor (ESR >15mΩ), reducing BOM count and board space vs. tantalum alternatives. |
| Integrated protection | Current limit (~600mA), short-circuit clamp (~140mA), and thermal shutdown prevent field failures under fault conditions. |
| Green packaging | RoHS-compliant, halogen-free molding compound (no Br/Sb) meets environmental compliance requirements for global markets. |
Applications
| Smartphone Baseband Power | Wireless Headset Audio Rail |
|---|---|
|
Use Scenario: Powers baseband processor I/O and memory interface in GSM/EDGE smartphones during TDMA transmit bursts. IC Role / Device Role / Timing Role: Primary 3.0V LDO delivering clean, fast-response power to digital baseband ICs synchronized with RF transmit timing. Use Value: 220μs startup and fast load transient response prevent brownout during 577μs transmit slots, ensuring protocol compliance. |
Use Scenario: Supplies 3.0V bias to Bluetooth audio codec and Class AB headphone driver in compact earbuds. IC Role / Device Role / Timing Role: Low-noise, low-IQ regulator enabling always-on voice detection while minimizing battery drain between calls. Use Value: 35μA quiescent current extends standby time to >10 days on 120mAh Li-ion; 65dB PSRR suppresses RF coupling into analog audio path. |
| Portable Medical Sensor Node | Industrial Handheld Scanner |
|
Use Scenario: Regulates power for ultra-low-power MCU and analog front-end in wearable ECG patch with 24/7 monitoring. IC Role / Device Role / Timing Role: Main system LDO providing stable 3.0V rail for signal chain and BLE radio during intermittent data transmission. Use Value: ±2% output accuracy ensures consistent ADC reference; thermal shutdown protects against enclosure overheating during extended use. |
Use Scenario: Supplies 3.0V to laser diode driver and image sensor in ruggedized barcode scanner operating in warehouse environments. IC Role / Device Role / Timing Role: Robust power conditioner handling wide input swings (3.2V–5.5V) from aging alkaline or Li-ion packs. Use Value: 2V–6V input range accommodates battery discharge curves; 150mV dropout maintains regulation until battery reaches 3.15V cutoff. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-3002E/MB | 250mA max output, 1.6μA IQ, SOT23-5 package, 600mV dropout at 250mA | Limited to lower-current peripherals; unsuitable for 300mA burst loads | Select only if ultra-low IQ dominates over current capability and dropout performance. |
| Torex XC6206P302MR-G | 300mA, 1.0μA IQ, SOT23-5, 350mV dropout at 300mA, no EN pin | Lacks enable control and has higher dropout-reduces usable battery range | Choose only for cost-sensitive designs where EN functionality and low dropout are non-critical. |
Compared with MCP1700-3002E/MB and XC6206P302MR-G, AP7335-30SNG-7 uniquely balances 300mA drive, 35μA IQ, 150mV dropout, and EN control in a 2mm² DFN-making it optimal for space-constrained, battery-critical portable systems requiring both efficiency and responsiveness.
Availability
AP7335-30SNG-7 is available at Aetrix Electronics and suitable for smartphone baseband power, wireless headset audio rails, portable medical sensor nodes, and industrial handheld scanners requiring stable component supply with guaranteed long-term manufacturability.
Supply support for AP7335-30SNG-7 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 semiconductor company specializing in discrete, analog, and mixed-signal solutions for power management, signal integrity, and connectivity applications.
The AP7335 belongs to Diodes' high-efficiency, low-quiescent-current LDO family-engineered specifically for battery-powered portable electronics demanding extended runtime, fast dynamic response, and robust fault protection.
FAQ
What is the minimum input voltage required for AP7335-30SNG-7 to maintain 3.0V output at 300mA?
The minimum input voltage is 3.15V, calculated from the 150mV dropout voltage at 300mA load (3.0V + 0.15V). Below this, regulation fails and output drops linearly with input. Input must also remain ≥2.0V per absolute maximum ratings, but functional regulation begins at 3.15V under full load.
Can AP7335-30SNG-7 operate without an output capacitor?
No. The device requires a minimum 1μF ceramic output capacitor with ESR >15mΩ for stability. Omitting it causes oscillation and unregulated output. Larger capacitance improves transient response but does not replace the mandatory 1μF minimum.
Is the NC pin on AP7335-30SNG-7 electrically connected internally?
No. Pins 5 and 6 are designated NC (No Connection) and are not bonded to any internal circuitry. They may be left floating or connected to GND for mechanical stability-but neither connection affects electrical performance or thermal behavior.
How does the EN pin behave during power-up when driven by a microcontroller GPIO?
The EN pin must rise above 1.4V (VIH) to enable regulation; below 0.4V (VIL) disables output. During MCU power-up, ensure GPIO is configured as push-pull output and driven high *after* its own supply stabilizes-otherwise, unintended startup or brownout may occur due to slow-rising EN voltage.
AP7335-30SNG-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-UDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.2V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 80 µA
- Current - Supply (Max):
- -
- PSRR:
- 65dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- U-DFN2020-6
AP7335-30SNG-7 FAQ
1.How can I place an order for AP7335-30SNG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7335-30SNG-7 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 AP7335-30SNG-7 reliable?
The price and inventory of AP7335-30SNG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7335-30SNG-7 is usually 5 days.
3.What payment methods are accepted for AP7335-30SNG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7335-30SNG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7335-30SNG-7?
AP7335-30SNG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7335-30SNG-7 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 AP7335-30SNG-7?
For technical support, including AP7335-30SNG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7335-30SNG-7 requirements.
6.How does Aetrix verify that AP7335-30SNG-7 is sourced from the original manufacturer or authorized distributors?
All AP7335-30SNG-7 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 AP7335-30SNG-7 meets industry standards.
7.What is the process for return or replacement of AP7335-30SNG-7?
All AP7335-30SNG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7335-30SNG-7, 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 AP7335-30SNG-7 part is unused and in its original packaging.
Return procedure for AP7335-30SNG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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