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Diodes Incorporated AP7311-10WG-7
- Part No.:
- AP7311-10WG-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP7311-10WG-7.pdf
- Description:
- IC REG LINEAR 1V 150MA SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:2,051
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Product details
Overview
AP7311-10WG-7 from Diodes Incorporated is a 150mA fixed-output (1.0V) low-dropout linear regulator in SOT25 package, featuring 65µA typical quiescent current, 150mV dropout at full load, and fast 80µs startup. It integrates enable control, thermal shutdown, current limiting, and short-circuit protection - designed for power management in battery-powered portable devices requiring stable, low-noise 1.0V supply.
For engineers reviewing the AP7311-10WG-7 datasheet, AP7311-10WG-7 pinout, AP7311-10WG-7 application, or AP7311-10WG-7 equivalent, key selection criteria include ultra-low IQ across 2–6V input range, compatibility with 1µF ceramic output capacitor, PSRR of 65dB at 100Hz, and guaranteed operation from –40°C to +85°C ambient.
Technical Context
The AP7311-10WG-7 implements a P-channel MOSFET pass element with internal 0.4V bandgap reference and error amplifier, enabling fixed 1.0V output without external feedback resistors. Its EN pin provides logic-level active-high control with VIH ≥1.4V and VIL ≤0.4V, supporting direct microcontroller GPIO interfacing.
Protection circuitry includes foldback current limiting (200–300mA), short-circuit clamping (~50mA), and thermal shutdown at ~140°C with 15°C hysteresis. The device maintains regulation down to zero load and remains stable with output capacitors as low as 1µF (X7R/X5R, 10–200mΩ ESR).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.0V ±2% over –40°C to +85°C; enables direct powering of 1.0V I/O or core rails without resistor network. |
| Max Output Current | 150mA continuous; sufficient for low-power microcontrollers, sensors, or RF front-end biasing. |
| Quiescent Current | 65µA typical at full load; minimizes standby power loss in always-on battery systems. |
| Dropout Voltage | 150mV typical at 150mA; allows operation from 1.15V input, extending usable battery voltage range. |
| PSRR | 65dB at 100Hz; suppresses low-frequency ripple from switching DC/DC stages upstream. |
| Start-up Time | 80µs to 1.0V output; supports rapid wake-up from deep-sleep modes in portable applications. |
| Input Voltage Range | 2.0V to 6.0V; compatible with single Li-ion, dual NiMH, or regulated 3.3V/5V system rails. |
Pinout & Package
SOT25 (5-pin, 2.9mm × 1.6mm × 1.1mm) surface-mount package with RoHS-compliant lead-free finish and "Green" molding compound (no Br/Sb). Thermal resistance θJA = 190°C/W on standard FR-4 PCB with minimum pad layout.
| 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 and noise rejection. |
| 2 - GND | Power ground reference | Common return path for input/output currents; must be low-impedance connection to minimize noise coupling. |
| 3 - EN | Enable control input | Active-high logic interface; ties to MCU GPIO or system power rail to manage regulator sequencing and sleep mode. |
| 4 - NC | No connection | Internally unconnected; no external tie required; avoid routing traces or vias to this pad. |
| 5 - OUT | Regulated output | Delivers stable 1.0V; requires ≥1µF ceramic capacitor to GND near pin for transient response and stability. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 65µA typical across full 2–6V input and 0–150mA load range - extends battery life in always-on IoT sensors. |
| Fast transient response | Stable under 0→150mA load steps with minimal overshoot/undershoot - supports GSM/TDMA baseband ICs with pulsed current demands. |
| Low-ESR capacitor compatibility | Stable with 1µF ceramic output capacitor (X7R/X5R, 10–200mΩ ESR) - reduces BOM count and board space vs. tantalum alternatives. |
| Integrated protection suite | Current limit (200–300mA), short-circuit clamp (~50mA), and thermal shutdown (140°C) - eliminates need for external fault-handling circuitry. |
| Wide operating temperature | –40°C to +85°C ambient rating - qualified for industrial portable equipment and automotive infotainment peripherals. |
Applications
| Wireless Headset Power Rail | USB Peripheral Controller Supply |
|---|---|
|
Use Scenario: Powers Bluetooth audio codec and RF transceiver in compact wireless headsets with single-cell Li-ion battery. IC Role / Device Role / Timing Role: Primary 1.0V LDO delivering clean, low-noise supply to sensitive analog and digital blocks during burst-mode RF transmission. Use Value: 80µs startup enables immediate audio playback after wake; 65µA IQ extends talk time by >15% versus standard LDOs. |
Use Scenario: Supplies 1.0V core voltage to USB 2.0 hub controller in docking stations and multi-port adapters. IC Role / Device Role / Timing Role: Fixed-output LDO providing regulated rail independent of upstream 3.3V/5V USB bus voltage variation. Use Value: 150mV dropout ensures regulation even when input sags to 1.15V during hot-plug transients. |
| Industrial Sensor Node Core | Portable Medical Monitor Logic |
|
Use Scenario: Powers ultra-low-power ARM Cortex-M0+ MCU and MEMS accelerometer in battery-operated predictive maintenance sensor nodes. IC Role / Device Role / Timing Role: Always-on 1.0V supply enabling sub-µA sleep current while maintaining RTC and wake-up interrupt capability. Use Value: Guaranteed –40°C to +85°C operation ensures reliability in uncontrolled factory environments. |
Use Scenario: Supplies 1.0V logic rail to display driver and data acquisition ASIC in handheld ECG monitors. IC Role / Device Role / Timing Role: Low-noise, fast-response regulator ensuring glitch-free sampling during patient movement-induced line/load transients. Use Value: 65dB PSRR at 100Hz suppresses switching noise from adjacent DC/DC converters, preserving signal integrity. |
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 | 100mA max output, 1.6µA IQ, SOT23-3 package (no EN pin) | Lacks enable control and current limit; limited to ultra-low-current applications only | Select only if system requires <100mA and absolute minimum IQ dominates over protection features |
| TPS7A0510PDBVR | 200mA max, 25µA IQ, 170mV dropout, SOT23-5 with EN | Lower IQ but higher dropout; requires larger output cap (2.2µF) for stability | Prefer for longer battery life where input voltage margin ≥1.17V and board space permits larger capacitor |
Compared with MCP1700T-1002E/TT, AP7311-10WG-7 delivers 50% higher current and integrated EN/protection at modest IQ cost; versus TPS7A0510PDBVR, it trades 40µA higher IQ for 20mV lower dropout and proven 1µF stability - critical for space-constrained portable designs.
Availability
AP7311-10WG-7 is available at Aetrix Electronics and suitable for wireless headset power rails, USB peripheral controllers, industrial sensor node cores, and portable medical monitor logic requiring stable component supply with guaranteed long-term manufacturability.
Supply support for AP7311-10WG-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 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 AP7311 belongs to Diodes' low-quiescent-current LDO family, engineered specifically for battery-powered portable electronics demanding fast transient response, minimal footprint, and robust fault protection without external components.
FAQ
Is AP7311-10WG-7 compatible with 1µF ceramic output capacitors?
Yes - the AP7311-10WG-7 is explicitly characterized and guaranteed stable with 1µF X7R/X5R ceramic capacitors (10–200mΩ ESR). This eliminates need for larger or more expensive tantalum capacitors and reduces PCB area. Layout best practice requires placing the capacitor within 2mm of the OUT and GND pins with short, wide traces.
What is the minimum input voltage required to maintain 1.0V output at 150mA?
The minimum input voltage is 1.15V, calculated from the typical 150mV dropout voltage at 150mA load. However, the device's specified operating range starts at 2.0V per Absolute Maximum Ratings - meaning reliable regulation at full specification (including PSRR, line/load regulation, and thermal safety) begins at VIN ≥2.0V.
Can the EN pin be left floating or tied directly to IN?
No - the EN pin must not be left floating due to risk of unintended toggling. If enable functionality is unused, Diodes recommends tying EN directly to IN (not VOUT or external pull-up) to ensure reliable turn-on across temperature and process variation. Floating EN may cause erratic startup or oscillation.
Does AP7311-10WG-7 require a minimum load current for stability?
No - the AP7311-10WG-7 remains stable and fully regulated with zero load current. This is confirmed in the datasheet Application Note section ("No Load Stability") and enables use in systems where downstream circuitry may be completely powered down while the LDO remains enabled.
AP7311-10WG-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 @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 75 µA
- Current - Supply (Max):
- 85 µA
- PSRR:
- 65dB (100Hz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-25
AP7311-10WG-7 FAQ
1.How can I place an order for AP7311-10WG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7311-10WG-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 AP7311-10WG-7 reliable?
The price and inventory of AP7311-10WG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7311-10WG-7 is usually 5 days.
3.What payment methods are accepted for AP7311-10WG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7311-10WG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7311-10WG-7?
AP7311-10WG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7311-10WG-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 AP7311-10WG-7?
For technical support, including AP7311-10WG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7311-10WG-7 requirements.
6.How does Aetrix verify that AP7311-10WG-7 is sourced from the original manufacturer or authorized distributors?
All AP7311-10WG-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 AP7311-10WG-7 meets industry standards.
7.What is the process for return or replacement of AP7311-10WG-7?
All AP7311-10WG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7311-10WG-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 AP7311-10WG-7 part is unused and in its original packaging.
Return procedure for AP7311-10WG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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