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Diodes Incorporated AP7335-10WG-7
- Part No.:
- AP7335-10WG-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP7335-10WG-7.pdf
- Description:
- IC REG LINEAR 1V 300MA SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:7,669
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Product details
Overview
AP7335-10WG-7 from Diodes Incorporated is a 300mA fixed-output (1.0V) low-dropout linear regulator with 35μA quiescent current, 150mV dropout at full load, 65dB PSRR at 1kHz, and 220μs startup time. It integrates enable control, thermal shutdown, and current limiting, and is designed for power-sensitive portable applications including Bluetooth headsets and MP3 players.
For engineers reviewing the AP7335-10WG-7 datasheet, AP7335-10WG-7 pinout, AP7335-10WG-7 application, or AP7335-10WG-7 equivalent, key selection criteria include its ultra-low IQ, fast transient response under dynamic loads, stable operation with 1μF ceramic output capacitance, and SOT25 package compatibility with space-constrained PCB layouts.
Technical Context
The AP7335-10WG-7 implements a PMOS pass transistor architecture enabling low dropout and high PSRR without requiring external compensation. Its internal 0.8V bandgap reference and error amplifier regulate output precisely across -40°C to +85°C ambient temperature.
Enable logic operates with VIH ≥ 1.4V and VIL ≤ 0.4V, supporting direct connection to 1.8V/3.3V GPIO. Thermal shutdown activates at 145°C with 15°C hysteresis, and short-circuit protection limits output current to 140mA while current limit clamps at 600mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.0V ±2% accuracy over temperature and load ensures stable core voltage for 1.0V logic rails. |
| Max Output Current | 300mA continuous delivery supports single-rail microcontrollers or audio codecs without derating. |
| Quiescent Current | 35μA typical enables >1-year battery life in always-on sensor nodes powered by coin cells. |
| Dropout Voltage | 150mV at 300mA allows operation from 1.15V input - critical for single-cell LiFePO₄ or two-cell alkaline systems. |
| PSRR | 65dB at 1kHz suppresses switching noise from adjacent DC-DC converters feeding shared input rails. |
| Startup Time | 220μs enables rapid wake-up from deep sleep in GSM/TDMA baseband subsystems. |
| Input Voltage Range | 2.0V to 6.0V accommodates wide-input battery chemistries and unregulated wall adapters. |
Pinout & Package
SOT25 package (3.0mm × 1.7mm × 1.3mm), RoHS-compliant, green molding compound, with exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Input voltage supply | Accepts 2–6V; requires ≥1μF ceramic bypass capacitor placed adjacent to pin for stability. |
| 2 - GND | Power ground reference | Must connect to low-impedance ground plane; shares thermal path with die substrate. |
| 3 - EN | Enable control input | Active-high logic interface; ties to VIN if always-on operation required. |
| 4 - NC | No connection | Internally unconnected; must remain floating or grounded per layout guidelines - no routing. |
| 5 - OUT | Regulated output | Delivers 1.0V ±2%; requires ≥1μF ceramic capacitor with ESR >15mΩ for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 35μA enables >10-year shelf life in IoT endpoint devices powered by primary lithium batteries. |
| Fast transient response | Stabilizes within 100μs during 0→300mA load steps - meets GSM burst-mode timing requirements. |
| Low-ESR capacitor compatibility | Stable with 1μF ceramic output capacitors eliminates need for costly tantalum or polymer alternatives. |
| Integrated protection | Thermal shutdown (145°C), short-circuit (140mA), and current limit (600mA) prevent field failures without external circuitry. |
| Wide input range | 2.0–6.0V operation supports legacy 3.3V/5V rails and emerging 2.5V–4.2V battery stacks. |
Applications
| Bluetooth Headset Power Management | MP3 Player Core Rail |
|---|---|
Use Scenario: Supplies clean 1.0V bias to Bluetooth baseband ICs during RF transmit bursts with rapid current demand shifts. IC Role / Device Role / Timing Role: Primary LDO delivering regulated core voltage to CSR BC04/Broadcom BCM2073x SoCs. Use Value: 220μs startup and fast transient response prevent brownouts during 12.5% TDMA duty-cycle transitions. |
Use Scenario: Powers DSP and flash memory controller in portable audio players using single-cell Li-ion. IC Role / Device Role / Timing Role: Fixed-output LDO generating stable 1.0V domain for low-power audio decode engines. Use Value: 35μA IQ extends playback time by >8 hours versus standard 250μA LDOs in 200mAh battery configurations. |
| Smartphone Subsystem Rail | Wearable Sensor Hub |
Use Scenario: Provides isolated 1.0V supply to motion sensor fusion processors (e.g., ST LSM6DSOX) in multi-rail smartphones. IC Role / Device Role / Timing Role: Secondary LDO decoupling sensor hub from noisy main SoC power domains. Use Value: 65dB PSRR at 1kHz attenuates coupled noise from 2.4GHz RF transceivers, reducing sensor offset drift. |
Use Scenario: Regulates power to ultra-low-power accelerometers and environmental sensors in fitness trackers. IC Role / Device Role / Timing Role: Always-on LDO maintaining 1.0V rail during deep-sleep modes between motion-triggered wakeups. Use Value: 150mV dropout enables operation down to 1.15V input - compatible with aging coin-cell batteries at end-of-life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-1002E/TT | 250mA max output, 1.6μA IQ, 600mV dropout at 250mA, SOT23-5 package | Limited to lower current and higher dropout; unsuitable for 300mA burst loads | Select only for ultra-low-IQ applications where peak current ≤250mA and input ≥1.6V above output |
| Torex XC6206P102MR-G | 300mA output, 1.0V fixed, 1.0μA IQ, 160mV dropout at 100mA, SOT23-5 | Lower IQ but significantly slower transient response (>1ms) and no enable pin | Prefer for static low-power sensors; avoid in GSM/Bluetooth where fast load steps occur |
Compared with MCP1700T-1002E/TT and XC6206P102MR-G, the AP7335-10WG-7 uniquely balances 300mA capability, 35μA IQ, 220μs startup, and integrated enable - making it the only option among the three qualified for dynamic portable RF subsystems.
Availability
AP7335-10WG-7 is available at Aetrix Electronics and suitable for Bluetooth headset power management, MP3 player core rails, smartphone subsystem regulation, and wearable sensor hub applications requiring stable component supply across production lifecycles.
Supply support for AP7335-10WG-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' low-quiescent-current LDO portfolio, engineered specifically for battery-powered portable electronics demanding extended runtime, fast dynamic response, and robust fault protection in compact form factors.
FAQ
What is the minimum input voltage required for AP7335-10WG-7 to maintain 1.0V output at 300mA?
The AP7335-10WG-7 requires a minimum input voltage of 1.15V to sustain 1.0V output at 300mA load, based on its 150mV dropout specification. Operation below this threshold causes output collapse; design margin should include worst-case temperature and tolerance effects.
Can AP7335-10WG-7 operate without an output capacitor?
No - the AP7335-10WG-7 requires a minimum 1μF ceramic output capacitor with ESR >15mΩ for stability. Omitting it causes oscillation and output voltage overshoot during load transients, as confirmed in the datasheet's stability region chart and application notes.
Is the NC pin on AP7335-10WG-7 internally connected or should it be grounded?
Pin 4 (NC) is unconnected internally and must remain electrically floating. Grounding or routing it risks parasitic coupling or thermal path disruption; the datasheet explicitly states "No connection" and shows no internal bond wire in the functional block diagram.
How does thermal shutdown behave during sustained overload conditions?
When junction temperature reaches 145°C, thermal shutdown disables the output; recovery occurs at ~130°C due to 15°C hysteresis. Under continuous overload, this causes on-off cycling - verified in the datasheet's thermal shutdown hysteresis plot and application note on power dissipation limits.
AP7335-10WG-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):
- 1V
- 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:
- SOT-25
AP7335-10WG-7 FAQ
1.How can I place an order for AP7335-10WG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7335-10WG-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 AP7335-10WG-7 reliable?
The price and inventory of AP7335-10WG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7335-10WG-7 is usually 5 days.
3.What payment methods are accepted for AP7335-10WG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7335-10WG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7335-10WG-7?
AP7335-10WG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7335-10WG-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 AP7335-10WG-7?
For technical support, including AP7335-10WG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7335-10WG-7 requirements.
6.How does Aetrix verify that AP7335-10WG-7 is sourced from the original manufacturer or authorized distributors?
All AP7335-10WG-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 AP7335-10WG-7 meets industry standards.
7.What is the process for return or replacement of AP7335-10WG-7?
All AP7335-10WG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7335-10WG-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 AP7335-10WG-7 part is unused and in its original packaging.
Return procedure for AP7335-10WG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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