My Inquiry
My Account
Diodes Incorporated AP7311-30WG-7
- Part No.:
- AP7311-30WG-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP7311-30WG-7.pdf
- Description:
- IC REG LINEAR 3V 150MA SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:2,490
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AP7311-30WG-7 from Diodes Incorporated is a fixed-output 3.0V, 150mA low-dropout linear regulator in SOT25 package, featuring 65µA quiescent current, 150mV dropout at full load, and 65dB PSRR at 100Hz. It integrates enable control, thermal shutdown, current limiting, and short-circuit protection for battery-powered portable devices requiring stable, low-noise voltage regulation.
For engineers reviewing the AP7311-30WG-7 datasheet, AP7311-30WG-7 pinout, AP7311-30WG-7 application, or AP7311-30WG-7 equivalent, key selection criteria include output accuracy (±2%), fast 80µs startup, stability with 1µF ceramic output capacitor, and operation across –40°C to +85°C ambient range.
Technical Context
The AP7311-30WG-7 implements a bandgap-referenced error amplifier driving an NMOS pass transistor, with internal 0.4V reference and fixed 3.0V output set by laser-trimmed resistors. Its architecture enables fast transient response via high-gain feedback and low-output-impedance drive capability.
Enable logic operates with VIH ≥ 1.4V and VIL ≤ 0.4V, supporting direct microcontroller GPIO control. Protection circuitry includes foldback current limiting (200–300mA), short-circuit clamping (~50mA), and thermal shutdown at 140°C with 15°C hysteresis - all fully integrated without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0V ±2% over –40°C to +85°C; eliminates need for external resistor divider. |
| Max Output Current | 150mA continuous; sufficient for MCU cores, sensors, and RF front-ends in portable systems. |
| Quiescent Current | 65µA typical at full load; enables >1-year battery life in always-on IoT sensors. |
| Dropout Voltage | 150mV typical at 150mA; allows operation down to 3.15V input when regulating 3.0V output. |
| PSRR | 65dB at 100Hz; suppresses switching noise from upstream DC/DC converters feeding the LDO. |
| Start-up Time | 80µs to full output; supports rapid wake-from-sleep in GSM/TDMA baseband power sequencing. |
| Thermal Shutdown | Triggers at 140°C junction temperature with 15°C hysteresis; prevents permanent damage during sustained overload. |
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 pad not present; θJA = 190°C/W on standard FR-4 PCB.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Input voltage supply | Accepts 2V–6V; requires ≥1µF ceramic bypass capacitor placed adjacent to pin for stability. |
| 2 - GND | Power ground reference | Common return path for input/output currents; must connect directly to low-impedance ground plane. |
| 3 - EN | Enable control input | Active-high logic; ties to VIN for always-on operation or to MCU GPIO for dynamic power gating. |
| 4 - NC | No connection | Internally unconnected; must remain floating - no external tie or pull-up/down. |
| 5 - OUT | Regulated output | Delivers 3.0V ±2%; stable with 1µF–4.7µF X7R/X5R ceramic capacitors (ESR 10–200mΩ). |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 65µA at 150mA load enables multi-year operation on coin-cell batteries in wearables and remote sensors. |
| Fast transient response | Stable under 0→150mA load steps with minimal undershoot/overshoot - critical for GSM/TDMA burst-mode power delivery. |
| Integrated protection suite | Current limit (200–300mA), short-circuit clamp (~50mA), and thermal shutdown (140°C) eliminate need for external fault management circuitry. |
| Small-footprint stability | Guaranteed stability with 1µF ceramic output capacitor reduces BOM count and PCB area vs. legacy LDOs requiring ≥10µF tantalum. |
| Wide input range | 2V–6V operation supports single-cell Li-ion (2.7–4.2V), two-cell alkaline (2–3.2V), and USB-powered (4.5–5.5V) systems. |
Applications
| Portable Medical Sensors | GSM Baseband Power |
|---|---|
Use Scenario: Continuous glucose monitor powered by CR2032 coin cell with intermittent Bluetooth LE transmission. IC Role / Device Role / Timing Role: Primary 3.0V supply for ultra-low-power MCU and analog front-end; enabled only during measurement/transmit windows. Use Value: 65µA IQ extends battery life beyond 2 years; 80µs startup ensures sensor data capture begins within µs of wake signal. | Use Scenario: Powering RF transceiver and DSP core in 2G/3G cellular module during TDMA transmit bursts. IC Role / Device Role / Timing Role: Local LDO delivering clean 3.0V rail; responds to 100µA ↔ 150mA load transitions every 4.6ms. Use Value: Fast transient response prevents voltage droop below 2.94V (–2%), avoiding DSP reset or RF desense during peak transmit current. |
| Industrial IoT Edge Node | USB-Powered Peripheral |
Use Scenario: Battery-backed environmental sensor node with LoRaWAN radio, operating in harsh –40°C to +85°C environments. IC Role / Device Role / Timing Role: Main 3.0V regulator for microcontroller, temperature/humidity sensor, and LoRa transceiver; thermally robust across full industrial temp range. Use Value: Guaranteed ±2% output accuracy and thermal shutdown at 140°C ensure reliable operation in unventilated enclosures or solar-heated outdoor housings. | Use Scenario: USB-powered barcode scanner with active illumination LED and CMOS imager. IC Role / Device Role / Timing Role: Post-regulator cleaning noisy 5V USB input to stable 3.0V for image sensor and decoder ASIC. Use Value: 65dB PSRR at 100Hz attenuates USB switcher ripple; 150mV dropout allows full 3.0V output even as USB port sags to 4.5V under load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-quiescent-current LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-3002E/TO | 250mA rating, 1.6µA IQ (lower), but 600mV dropout at 250mA; SOT23-5 package. | Lacks enable pin and short-circuit protection; unsuitable for dynamic power gating or fault-prone environments. | Select only if ultra-low IQ dominates and full protection is unnecessary. |
| Torex XC6206P302MR-G | 150mA, 1µF stability, but 12µA IQ and no enable pin; SOT23-5 package. | Fixed 3.0V output only; no EN control limits use in sleep/wake architectures. | Choose only for always-on, ultra-low-power applications where enable functionality is omitted. |
Compared with MCP1700-3002E/TO and XC6206P302MR-G, the AP7311-30WG-7 uniquely combines 65µA IQ, 150mV dropout, integrated EN control, and full protection suite in SOT25 - making it optimal for battery-constrained, dynamically powered portable systems requiring reliability and design simplicity.
Availability
AP7311-30WG-7 is available at Aetrix Electronics and suitable for portable medical sensors, GSM baseband power, industrial IoT edge nodes, and USB-powered peripherals requiring stable component supply with guaranteed long-term availability.
Supply support for AP7311-30WG-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 AP7311 belongs to Diodes' low-quiescent-current LDO family, engineered specifically for energy-constrained portable electronics where battery life, fast transient response, and integrated fault protection are critical system requirements.
FAQ
What is the minimum input voltage required to maintain 3.0V output at 150mA load?
The AP7311-30WG-7 requires VIN ≥ 3.15V to sustain regulated 3.0V output at 150mA, based on its typical 150mV dropout voltage. At higher temperatures or worst-case process corners, dropout may reach 300mV, so VIN ≥ 3.3V is recommended for margin in production designs.
Can the EN pin be left unconnected, or must it be tied high?
The EN pin must not be left floating. For always-on operation, tie EN directly to IN. Leaving it open risks undefined logic state due to leakage paths, potentially causing erratic enable/disable behavior or increased shutdown current. A 100kΩ pull-up to IN is acceptable but not required if directly connected.
Is the AP7311-30WG-7 stable with a 2.2µF X5R ceramic capacitor?
Yes - the AP7311-30WG-7 is explicitly characterized for stability with 1µF to 4.7µF ceramic output capacitors having ESR between 10mΩ and 200mΩ. A 2.2µF X5R capacitor (typical ESR ~30mΩ) meets both capacitance and ESR specifications and improves load transient response versus the minimum 1µF value.
Does the device require a minimum load current to maintain regulation?
No - the AP7311-30WG-7 remains stable and regulated with zero load current. The datasheet confirms "no minimum load is required," and the internal reference and error amplifier are designed to operate correctly from 0mA to 150mA, enabling use in standby or deep-sleep modes without dummy loads.
AP7311-30WG-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):
- 0.3V @ 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
AP7311-30WG-7 FAQ
1.How can I place an order for AP7311-30WG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7311-30WG-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 AP7311-30WG-7 reliable?
The price and inventory of AP7311-30WG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7311-30WG-7 is usually 5 days.
3.What payment methods are accepted for AP7311-30WG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7311-30WG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7311-30WG-7?
AP7311-30WG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7311-30WG-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 AP7311-30WG-7?
For technical support, including AP7311-30WG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7311-30WG-7 requirements.
6.How does Aetrix verify that AP7311-30WG-7 is sourced from the original manufacturer or authorized distributors?
All AP7311-30WG-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 AP7311-30WG-7 meets industry standards.
7.What is the process for return or replacement of AP7311-30WG-7?
All AP7311-30WG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7311-30WG-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 AP7311-30WG-7 part is unused and in its original packaging.
Return procedure for AP7311-30WG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP7311-30WG-7 Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
