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Diodes Incorporated AP7335-15SNG-7
- Part No.:
- AP7335-15SNG-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 6-UDFN Exposed Pad
- Datasheet:
-
AP7335-15SNG-7.pdf
- Description:
- IC REG LIN 1.5V 300MA 6DFN2020
- Quantity:
- Payment:
- Shipping:
Inventory:4,518
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Product details
Overview
AP7335-15SNG-7 from Diodes Incorporated is a fixed-output 1.5V, 300mA low-dropout linear regulator in DFN2020-6 package, featuring 35μA quiescent current, 150mV dropout at full load, 65dB PSRR at 1kHz, and fast 220μs startup-designed for power-sensitive portable electronics including Bluetooth headsets and MP3 players.
For engineers reviewing the AP7335-15SNG-7 datasheet, AP7335-15SNG-7 pinout, AP7335-15SNG-7 application, or AP7335-15SNG-7 equivalent, key selection criteria include output voltage accuracy (±2%), thermal shutdown threshold (145°C), EN pin logic thresholds (VIH = 1.4V, VIL = 0.4V), and stability with 1μF ceramic output capacitor.
Technical Context
The AP7335-15SNG-7 integrates a PMOS pass element, band-gap reference, error amplifier, and protection circuitry-including current limit (400–600mA), short-circuit clamp (~140mA), and thermal shutdown with 15°C hysteresis. Its fixed 1.5V output eliminates external feedback resistors, simplifying layout for space-constrained designs.
It operates across 2V–6V input range and maintains regulation down to 0mA load. The DFN2020-6 package provides θJA = 251°C/W, requiring careful thermal pad design; PSRR remains ≥65dB at 1kHz under 50mA load with VIN = VOUT +1V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5V ±2% over –40°C to +85°C ambient; enables direct powering of 1.5V logic or analog rails without resistor network. |
| Max Output Current | 300mA continuous; supports moderate-power peripherals like audio codecs or sensor interfaces in portable devices. |
| Quiescent Current | 35μA typical at zero load; minimizes standby power loss in battery-operated systems with frequent sleep/wake cycles. |
| Dropout Voltage | 150mV at 300mA (VOUT ≥ 2.5V); for 1.5V output, typical dropout is 170mV-enables operation down to ~1.67V input. |
| PSRR | 65dB at 1kHz; suppresses switching noise from upstream DC/DC converters, critical for noise-sensitive RF or audio stages. |
| Startup Time | 220μs from EN high to regulated output; supports rapid wake-up in GSM/TDMA burst-mode applications. |
| Thermal Shutdown | Triggers at 145°C junction temperature with 15°C hysteresis; prevents permanent damage during sustained overload or poor PCB heatsinking. |
Pinout & Package
AP7335-15SNG-7 uses the DFN2020-6 package (2.0mm × 2.0mm × 0.6mm, 0.65mm pitch) with exposed thermal pad. Pin 1 (EN) is top-left corner when marking dot is oriented top-left; pin numbering follows standard DFN convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - EN | Enable control input | Active-high logic input; requires VIH ≥ 1.4V to enable regulation; ties to VIN if always-on operation needed. |
| 2 - GND | Power ground reference | Primary return path for IN, OUT, and internal circuitry; must connect directly to low-impedance ground plane. |
| 3 - IN | Input voltage supply | Accepts 2V–6V; requires ≥1μF ceramic decoupling capacitor placed adjacent to pin for noise immunity and stability. |
| 4 - OUT | Regulated output | Delivers stable 1.5V; requires ≥1μF ceramic capacitor (ESR >15mΩ) close to pin for transient response and loop stability. |
| 5 - NC | No connection | Internally unconnected; must remain floating-no routing or soldering permitted. |
| 6 - NC | No connection | Internally unconnected; must remain floating-no routing or soldering permitted. |
Key Features
| Feature | Design Value |
|---|---|
| Low IQ operation | 35μA quiescent current enables >1-year battery life in coin-cell-powered IoT sensors with 10-second wake intervals. |
| Fast transient response | Stable under 10mA ↔ 300mA load steps with <20mV undershoot/overshoot-supports GSM baseband ICs with pulsed current demands. |
| Integrated protection | Current limit (600mA), short-circuit clamp (140mA), and thermal shutdown (145°C) eliminate need for external fault management circuitry. |
| Small-footprint packaging | DFN2020-6 occupies only 4mm² PCB area-ideal for ultra-thin wearables and TWS earbud charging cases. |
| Green RoHS compliance | Lead-free finish and bromine/antimony-free molding compound meet EU Directive 2002/95/EC with full exemption coverage. |
Applications
| Bluetooth Headset Power | MP3 Player Core Rail |
|---|---|
|
Use Scenario: Powers DSP, codec, and Bluetooth radio in compact mono/stereo headsets with single-cell Li-ion (3.0–4.2V) input. IC Role / Device Role / Timing Role: Primary 1.5V LDO supplying bias to RF front-end and audio DAC; enables clean power during TX/RX bursts. Use Value: 65dB PSRR rejects switching noise from buck converter feeding other rails; 220μs startup synchronizes with Bluetooth link establishment. |
Use Scenario: Supplies 1.5V core voltage to low-power microcontroller and NAND flash interface in portable music players. IC Role / Device Role / Timing Role: Fixed-output LDO delivering stable core rail during file decode and display refresh cycles. Use Value: 35μA IQ extends playback time by >8% versus comparable 60μA LDOs; 150mV dropout allows operation until battery reaches 1.65V. |
| Smartphone Subsystem Rail | Wearable Sensor Hub |
|
Use Scenario: Provides dedicated 1.5V supply to ambient light/proximity sensor ASIC in smartphone bezel modules. IC Role / Device Role / Timing Role: Always-on LDO with EN controlled by host MCU to gate power during display-off periods. Use Value: Ultra-low IQ preserves system standby current budget; DFN2020-6 footprint fits narrow bezel PCB real estate. |
Use Scenario: Powers optical heart-rate monitor (PPG) analog front-end and ADC in fitness bands with CR2032 coin cell. IC Role / Device Role / Timing Role: Primary regulator for noise-sensitive analog signal chain; enabled only during measurement windows. Use Value: 170mV dropout at 300mA ensures full functionality down to 1.67V battery voltage; thermal shutdown prevents overheating in sealed enclosure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-1502E/TO | 250mA max output, 1.8μA IQ, SOT23-5 package, 600mV dropout at 250mA | Limited to lower current; better for ultra-low-power sensor nodes but unsuitable for 300mA burst loads | Select when IQ < 5μA is mandatory and peak load ≤250mA; avoid for audio or RF subsystems requiring 300mA. |
| Torex XC6206P152MR-G | 300mA output, 1.0μA IQ, SOT23-5, 350mV dropout at 300mA, no EN pin | No enable control; higher dropout limits usable input range; smaller package lacks thermal pad | Choose for cost-sensitive, always-on applications where EN functionality and thermal performance are noncritical. |
Compared with MCP1700-1502E/TO and XC6206P152MR-G, AP7335-15SNG-7 uniquely balances 300mA capability, 35μA IQ, EN control, and DFN2020-6 thermal performance-making it optimal for space-constrained, battery-powered systems needing both efficiency and robustness.
Availability
AP7335-15SNG-7 is available at Aetrix Electronics and suitable for Bluetooth headset power management, MP3 player core rails, and wearable sensor hub designs requiring stable component supply, consistent parametric performance, and long-term lifecycle support.
Supply support for AP7335-15SNG-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 manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability power management, signal integrity, and protection solutions for consumer, industrial, and automotive markets.
The AP7335 belongs to Diodes' low-quiescent-current LDO family, engineered specifically for battery-powered portable electronics where extended runtime, small form factor, and fast dynamic response are essential design requirements.
FAQ
What is the minimum input voltage required for AP7335-15SNG-7 to maintain 1.5V regulation at 300mA?
The minimum input voltage is determined by dropout: 1.5V + 170mV = 1.67V (typical at 300mA, per Electrical Characteristics table). However, the device specifies a minimum operating VIN of 2.0V across all conditions-so 2.0V is the guaranteed functional lower limit, ensuring margin for line regulation and temperature variation.
Can AP7335-15SNG-7 operate without an output capacitor?
No. The datasheet explicitly requires a minimum 1μF ceramic output capacitor with ESR >15mΩ for stability. Omitting it risks oscillation, excessive output ripple, and failure to regulate under load transients. The capacitor must be placed adjacent to OUT and GND pins per recommended layout.
Is the EN pin 5V-tolerant when used with a 5V system controller?
Yes. The absolute maximum rating for EN is VIN + 0.3V, and VIN max is 6.5V-so EN tolerates up to 6.8V. With VIN = 6V, EN accepts up to 6.3V. At VIN = 5V, EN safely accepts 5.3V logic signals, making it compatible with standard 5V GPIO without level shifting.
How does thermal shutdown behave during sustained overload?
When junction temperature reaches ~145°C, the output disables and remains off until temperature drops to ~130°C (15°C hysteresis). Under continuous overload, this causes on/off cycling-limiting average power dissipation but potentially disrupting downstream circuitry. Proper PCB thermal design (copper pour under thermal pad) prevents cycling in normal operation.
AP7335-15SNG-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):
- 1.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.3V @ 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
AP7335-15SNG-7 FAQ
1.How can I place an order for AP7335-15SNG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7335-15SNG-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 AP7335-15SNG-7 reliable?
The price and inventory of AP7335-15SNG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7335-15SNG-7 is usually 5 days.
3.What payment methods are accepted for AP7335-15SNG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7335-15SNG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7335-15SNG-7?
AP7335-15SNG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7335-15SNG-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 AP7335-15SNG-7?
For technical support, including AP7335-15SNG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7335-15SNG-7 requirements.
6.How does Aetrix verify that AP7335-15SNG-7 is sourced from the original manufacturer or authorized distributors?
All AP7335-15SNG-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 AP7335-15SNG-7 meets industry standards.
7.What is the process for return or replacement of AP7335-15SNG-7?
All AP7335-15SNG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7335-15SNG-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 AP7335-15SNG-7 part is unused and in its original packaging.
Return procedure for AP7335-15SNG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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