My Inquiry
My Account
Diodes Incorporated AP7311-20WG-7
- Part No.:
- AP7311-20WG-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP7311-20WG-7.pdf
- Description:
- IC REG LINEAR 2V 150MA SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:3,723
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AP7311-20WG-7 from Diodes Incorporated is a 150mA fixed-output (2.0V) 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 - designed for battery-powered portable devices requiring stable, low-power voltage regulation.
For engineers reviewing the AP7311-20WG-7 datasheet, AP7311-20WG-7 pinout, AP7311-20WG-7 application, or AP7311-20WG-7 equivalent, key selection criteria include ultra-low IQ across 2–6V input range, fast 80µs startup, stability with 1µF ceramic output capacitor, and robust fault protection under transient and overload conditions.
Technical Context
The AP7311-20WG-7 implements a PMOS pass transistor architecture with internal 0.4V bandgap reference and error amplifier, enabling fixed 2.0V output without external feedback components. Its EN pin provides logic-level active-high control with VIH = 1.4V and VIL = 0.4V, supporting direct microcontroller interfacing.
Designed for high-transient environments, it delivers excellent line/load regulation (±0.6% load, 0.01–0.20%/V line) and fast recovery from step-load changes (0→150mA), validated via typical performance curves showing <50mV undershoot/overshoot. Thermal shutdown activates at 140°C with 15°C hysteresis, ensuring safe operation under sustained overload.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.0V ±2% over –40°C to +85°C ambient; enables direct replacement of 2.0V logic rails without resistor network. |
| Quiescent Current | 65µA typical at 150mA load; sustains >1-year battery life in always-on IoT sensors powered by CR2032 cells. |
| Dropout Voltage | 150mV typical at 150mA; allows regulation from 2.2V input - critical for single-cell Li-ion or NiMH systems near end-of-discharge. |
| PSRR | 65dB at 100Hz; suppresses switching noise from adjacent DC-DC converters feeding mixed-signal circuits. |
| Start-up Time | 80µs typical; supports rapid wake-from-standby in GSM/TDMA baseband power sequencing. |
| Protection Features | Integrated current limit (~300mA), short-circuit clamp (~50mA), and thermal shutdown (140°C); eliminates need for external fault-handling circuitry. |
| Capacitor Compatibility | Stable with 1µF X7R/X5R ceramic output capacitor; reduces BOM count and PCB area vs. traditional LDOs requiring ≥10µF tantalum. |
Pinout & Package
SOT25 package: 5-pin, surface-mount, RoHS-compliant "Green" molding compound; footprint matches JEDEC MO-203AA standard with θJA = 190°C/W on 2oz FR-4.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Input voltage supply | Accepts 2–6V DC; requires ≥1µF ceramic bypass capacitor placed adjacent to pin to suppress input ripple and ensure stability. |
| 2 - GND | Power ground reference | Common return path for IN, OUT, EN, and internal circuitry; must connect to low-impedance ground plane to minimize noise coupling. |
| 3 - EN | Enable control input | Active-high logic interface (VIH ≥1.4V); tie to IN for always-on operation or drive from GPIO for dynamic power gating. |
| 4 - NC | No connection | Internally unconnected; must remain floating - no routing or soldering permitted per datasheet Pin Assignment (fixed-output variant). |
| 5 - OUT | Regulated output | Delivers 2.0V ±2% at up to 150mA; bypassed with 1µF ceramic capacitor directly between OUT and GND for optimal transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 65µA at full 150mA load ensures minimal battery drain during standby - critical for coin-cell–powered wearables. |
| Fast transient response | Controlled undershoot/overshoot (<50mV) during 0→150mA load steps enables reliable powering of burst-mode DSPs and RF ICs. |
| Single-capacitor stability | Guaranteed stability with 1µF ceramic output capacitor eliminates need for ESR tuning or large bulk capacitance. |
| Integrated protection suite | Current limit, short-circuit clamp, and thermal shutdown operate autonomously - no external components required for fault resilience. |
| Wide input voltage range | 2V to 6V operation supports diverse sources: single Li-ion (2.7–4.2V), two alkaline/NiMH (2.0–3.2V), or regulated 3.3V/5V rails. |
Applications
| Portable Medical Sensors | GSM Baseband Power Rails |
|---|---|
|
Use Scenario: Continuous glucose monitor (CGM) with Bluetooth LE radio operating from CR2032 battery. IC Role / Device Role / Timing Role: Primary 2.0V supply for analog front-end and BLE SoC core logic. Use Value: 65µA IQ extends battery life beyond 12 months; 80µs startup enables immediate sensor wake-up upon motion trigger. |
Use Scenario: TDMA-based GSM handset baseband subsystem requiring rapid power cycling between transmit/receive bursts. IC Role / Device Role / Timing Role: Local 2.0V rail for DSP and modem core, synchronized to EN signal from baseband processor. Use Value: Fast transient response maintains <±2% output during 100µA ↔ 150mA load jumps, preventing data corruption or clock jitter. |
| Industrial IoT Edge Nodes | USB-Powered Peripherals |
|
Use Scenario: LoRaWAN sensor node powered by energy-harvested solar cell with variable 2.5–5.5V output. IC Role / Device Role / Timing Role: Input-stage LDO conditioning harvested voltage to clean 2.0V for ultra-low-power MCU and transceiver. Use Value: 150mV dropout allows regulation down to 2.2V input - maximizing usable harvest window and runtime per charge cycle. |
Use Scenario: USB 2.0 audio interface drawing peak 120mA from 5V bus, requiring isolated 2.0V supply for ADC reference. IC Role / Device Role / Timing Role: Post-regulator generating precision 2.0V reference from noisy USB VBUS, decoupled via 1µF ceramic. Use Value: 65dB PSRR at 100Hz attenuates USB switcher noise, reducing ADC quantization error by >8 LSB in 16-bit conversion. |
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 |
|---|---|---|---|
| MCP1700-2002E/TO | 250mA rating, 1.6µA IQ (lower), but only 4V max input; no EN pin; SOT23-5 footprint differs. | Lacks enable control and thermal shutdown; unsuitable for dynamic power-gating or high-ambient industrial use. | Select when ultra-low IQ dominates and enable/control is unnecessary; verify thermal derating at >60°C ambient. |
| Torex XC6206P202MR-G | 150mA, 1.0µA IQ, 2.0V fixed, SOT23-5; no EN pin; dropout 300mV @150mA (higher). | Higher dropout limits use with sub-2.3V inputs; missing EN and protection features reduce system-level robustness. | Prefer for cost-sensitive, static-bias applications where input stays >2.5V and fault tolerance is secondary. |
Compared with MCP1700-2002E/TO and XC6206P202MR-G, the AP7311-20WG-7 uniquely balances ultra-low IQ (65µA), integrated EN control, full protection suite, and 150mV dropout - making it optimal for battery-constrained, dynamically controlled systems where reliability and input flexibility are non-negotiable.
Availability
AP7311-20WG-7 is available at Aetrix Electronics and suitable for portable medical sensors, GSM baseband subsystems, industrial IoT edge nodes, and USB-powered peripherals requiring stable component supply with guaranteed long-term lifecycle support.
Supply support for AP7311-20WG-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-power LDO portfolio, engineered specifically for battery-operated and energy-constrained applications demanding minimal quiescent current, fast transient response, and comprehensive fault protection without external components.
FAQ
What is the minimum input voltage required for stable 2.0V output at 150mA?
The AP7311-20WG-7 requires VIN ≥ VOUT + VDropout = 2.0V + 0.15V = 2.15V minimum for full-load regulation. At 25°C and 150mA, typical dropout is 150mV; worst-case (over temperature, process variation) remains ≤300mV per datasheet, so 2.3V ensures margin. Below 2.15V, output collapses nonlinearly.
Can the EN pin be left unconnected, or must it be tied high?
The EN pin must not be left floating - it has no internal pull-up. To ensure continuous operation, tie EN directly to IN (not through a resistor). Leaving it open risks erratic enable/disable behavior due to noise coupling, potentially causing output oscillation or unintended shutdown.
Is a minimum load required for output voltage stability?
No minimum load is required. The AP7311-20WG-7 remains stable and regulated from 0mA to 150mA output current, as confirmed in the datasheet's "No Load Stability" section and electrical characteristics table (IOUT = 0mA test condition included).
How does the 1µF output capacitor affect transient performance compared to larger values?
A 1µF X7R ceramic capacitor meets stability requirements and delivers specified 80µs startup and <50mV load-step deviation. Increasing to 2.2–4.7µF further reduces undershoot/overshoot by ~20–30% and improves high-frequency PSRR, but adds cost and board area - 1µF is the optimal balance for most portable designs.
AP7311-20WG-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):
- 2V
- 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
AP7311-20WG-7 FAQ
1.How can I place an order for AP7311-20WG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7311-20WG-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 AP7311-20WG-7 reliable?
The price and inventory of AP7311-20WG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7311-20WG-7 is usually 5 days.
3.What payment methods are accepted for AP7311-20WG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7311-20WG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7311-20WG-7?
AP7311-20WG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7311-20WG-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 AP7311-20WG-7?
For technical support, including AP7311-20WG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7311-20WG-7 requirements.
6.How does Aetrix verify that AP7311-20WG-7 is sourced from the original manufacturer or authorized distributors?
All AP7311-20WG-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 AP7311-20WG-7 meets industry standards.
7.What is the process for return or replacement of AP7311-20WG-7?
All AP7311-20WG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7311-20WG-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 AP7311-20WG-7 part is unused and in its original packaging.
Return procedure for AP7311-20WG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP7311-20WG-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…
