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Diodes Incorporated AP7335-30WG-7
- Part No.:
- AP7335-30WG-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP7335-30WG-7.pdf
- Description:
- IC REG LINEAR 3V 300MA SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:2,999
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Product details
Overview
AP7335-30WG-7 from Diodes Incorporated is a fixed-output 3.0V, 300mA low-dropout linear regulator with enable control, 35μA quiescent current, 150mV dropout at full load, and stable operation with 1μF ceramic output capacitor. It serves as a primary power supply for core logic rails in portable battery-powered systems requiring high transient response and ultra-low standby power.
For engineers reviewing the AP7335-30WG-7 datasheet, AP7335-30WG-7 pinout, AP7335-30WG-7 application, or AP7335-30WG-7 equivalent, this page delivers verified technical context, package-specific pin mapping, real-world application constraints, and validated alternative options for LDO selection in space-constrained, low-power embedded designs.
Technical Context
The AP7335-30WG-7 integrates a PMOS pass transistor, precision 0.8V bandgap reference, error amplifier, and thermal shutdown circuitry. Its fixed 3.0V output eliminates external feedback resistors, reducing BOM count and PCB footprint while maintaining ±2% output accuracy across –40°C to +85°C ambient.
It operates from 2V to 6V input, delivers fast 220μs startup after EN assertion, and achieves 65dB PSRR at 1kHz-critical for noise-sensitive RF and audio subsystems. Built-in current limit (400–600mA) and short-circuit protection (140mA) enable robust operation without external fault management circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0V ±2% - eliminates need for external resistor divider and associated layout sensitivity. |
| Max Output Current | 300mA continuous - sufficient for powering ARM Cortex-M microcontrollers, Bluetooth SoCs, and sensor hubs. |
| Quiescent Current | 35μA typical - enables >1-year battery life in always-on IoT sensors operating from coin cells. |
| Dropout Voltage | 150mV at 300mA (VOUT ≥ 2.5V) - supports regulation down to 3.15V input, extending usable battery voltage range. |
| PSRR | 65dB at 1kHz - suppresses switching noise from DC/DC converters feeding its input rail. |
| Start-up Time | 220μs - allows rapid wake-up from deep-sleep modes in GSM/TDMA-based devices without voltage droop. |
| Thermal Shutdown | Triggers at 145°C with 15°C hysteresis - prevents permanent damage during sustained overload or poor heatsinking. |
Pinout & Package
SOT25 package (3.0mm × 1.7mm × 1.3mm), RoHS-compliant, green molding compound. Thermal pad not present; junction-to-ambient θJA = 187°C/W on standard FR-4 board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Input voltage supply | Accepts 2V–6V; requires ≥1μF MLCC decoupling close to pin to prevent instability under fast load transients. |
| 2 - GND | Power ground reference | Must be low-impedance connection to system ground plane; shared return path for IN and OUT capacitors. |
| 3 - EN | Enable control input | Active-high logic interface; VIH = 1.4V min ensures compatibility with 1.8V/3.3V GPIO; ties to IN if always-on operation required. |
| 4 - NC | No connection | Internally unconnected; must remain floating-no routing or soldering permitted. |
| 5 - OUT | Regulated 3.0V output | Delivers up to 300mA; bypassed with ≥1μF ceramic capacitor placed adjacent to pin for optimal transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Low IQ operation | 35μA quiescent current enables multi-year battery life in maintenance-free wireless sensors. |
| Fast transient response | Stable 3.0V output under 10mA→300mA load steps with <20mV undershoot-critical for GSM baseband ICs. |
| Ultra-fast start-up | 220μs output rise time allows synchronized wake-up of multiple subsystems from sleep mode. |
| Integrated protection | Current limit (600mA), short-circuit clamp (140mA), and thermal shutdown (145°C) eliminate need for external fault ICs. |
| Small-footprint packaging | SOT25 footprint (3.0×1.7mm) fits tight layouts in wearables and hearing aids where board area is premium. |
Applications
| Smartphone Baseband Power | Bluetooth Headset Core Rail |
|---|---|
|
Use Scenario: Powers ARM9/ARM11 application processor core and memory interface in dual-mode GSM/UMTS handsets. IC Role / Device Role / Timing Role: Primary 3.0V LDO supplying VDD_CORE; responds to 12.5% TDMA duty-cycle load bursts within 220μs. Use Value: Maintains 3.0V ±30mV under 0→300mA 1μs-edge load steps-prevents DSP reset during transmit bursts. |
Use Scenario: Supplies 3.0V to CSR8670/Qualcomm QCC302x Bluetooth audio SoC in compact earbuds. IC Role / Device Role / Timing Role: Always-on LDO for Bluetooth controller; enabled via host MCU GPIO during active streaming. Use Value: 35μA IQ extends single-charge battery runtime beyond 8 hours; SOT25 footprint fits 12mm-diameter PCB. |
| Portable Medical Sensor Hub | Industrial Wireless Node |
|
Use Scenario: Powers ECG front-end ASIC, BLE radio, and flash memory in FDA-cleared wearable patch monitor. IC Role / Device Role / Timing Role: Single-point 3.0V source for analog/digital mixed-signal chain; enabled only during data acquisition windows. Use Value: ±2% output accuracy ensures consistent ADC reference scaling; thermal shutdown prevents overheating in sealed enclosure. |
Use Scenario: Supplies 3.0V to TI CC1352P sub-GHz SoC and MEMS accelerometer in battery-operated predictive maintenance node. IC Role / Device Role / Timing Role: Low-noise bias rail for RF transceiver and sensor signal conditioning; PSRR >65dB isolates RF switching noise. Use Value: Stable 3.0V output with 1μF ceramic cap reduces bill-of-materials vs. larger tantalum alternatives. |
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/TO | 300mA, 3.0V fixed, 1.6μA IQ, but 600mV dropout at 250mA and no EN pin. | Lacks enable control and fast transient capability-unsuitable for TDMA or burst-mode loads. | Select only when ultra-low IQ dominates over dynamic performance and enable functionality. |
| Torex XC6206P302MR | 300mA, 3.0V fixed, 12μA IQ, 350mV dropout at 300mA, SOT23-5 package. | Higher dropout limits usable input range; smaller SOT23-5 footprint but lower thermal margin (θJA = 250°C/W). | Prefer for minimal IQ in non-battery-critical applications where thermal headroom exceeds 40°C. |
Compared with MCP1700-3002E/TO and XC6206P302MR, AP7335-30WG-7 uniquely balances 35μA IQ, 150mV dropout, 220μs startup, and integrated EN-making it the only choice for space-constrained, battery-powered systems demanding both ultra-low standby power and fast dynamic response.
Availability
AP7335-30WG-7 is available at Aetrix Electronics and suitable for smartphone baseband power, Bluetooth headset core rails, and portable medical sensor hubs requiring stable component supply with guaranteed long-term manufacturability.
Supply support for AP7335-30WG-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 industrial, computing, and consumer markets.
The AP7335 belongs to Diodes' low-quiescent-current LDO family, engineered specifically for battery-powered portable electronics where extended runtime, small size, and fast transient immunity are design-critical requirements.
FAQ
What is the minimum input voltage required for stable 3.0V output at 300mA?
The AP7335-30WG-7 requires VIN ≥ 3.15V to maintain regulated 3.0V output at 300mA, based on its 150mV dropout specification at that load. Below 3.15V, output voltage drops linearly with input; operation below 2.0V input is prohibited per absolute maximum ratings.
Can the EN pin be driven directly from a 1.8V GPIO without level shifting?
Yes-the EN pin has a VIH threshold of 1.4V minimum, making it fully compatible with 1.8V logic outputs. No level shifter is needed; however, ensure the driving source can sink ≤1μA leakage current and withstand 6.5V absolute max voltage on EN.
Is an input capacitor mandatory, and what value is recommended?
A 1μF X5R/X7R ceramic capacitor between IN and GND is mandatory for stability and noise suppression. The datasheet confirms stability with ≥1μF; larger values improve line transient response but are not required. Place it within 2mm of the IN/GND pins using wide copper traces.
Does the AP7335-30WG-7 require a minimum load current to maintain regulation?
No minimum load is required-the device remains stable and regulated from 0mA to 300mA output current. This is confirmed in the datasheet's "No Load Stability" section and electrical characteristics table, where load regulation is specified down to 0mA.
AP7335-30WG-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- 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:
- SOT-25
AP7335-30WG-7 FAQ
1.How can I place an order for AP7335-30WG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7335-30WG-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 AP7335-30WG-7 reliable?
The price and inventory of AP7335-30WG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7335-30WG-7 is usually 5 days.
3.What payment methods are accepted for AP7335-30WG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7335-30WG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7335-30WG-7?
AP7335-30WG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7335-30WG-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 AP7335-30WG-7?
For technical support, including AP7335-30WG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7335-30WG-7 requirements.
6.How does Aetrix verify that AP7335-30WG-7 is sourced from the original manufacturer or authorized distributors?
All AP7335-30WG-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 AP7335-30WG-7 meets industry standards.
7.What is the process for return or replacement of AP7335-30WG-7?
All AP7335-30WG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7335-30WG-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 AP7335-30WG-7 part is unused and in its original packaging.
Return procedure for AP7335-30WG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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