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Diodes Incorporated AP7115-25WG-7
- Part No.:
- AP7115-25WG-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP7115-25WG-7.pdf
- Description:
- IC REG LINEAR 2.5V 150MA SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:3,462
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Product details
Overview
AP7115-25WG-7 from Diodes Incorporated is a 150mA fixed-output (2.5V) low-dropout linear regulator with shutdown control, PMOS pass element, and integrated thermal shutdown and current-limit protection. It operates from 2.5V to 5.5V input, delivers ±2% output accuracy, and draws only 50µA quiescent current-enabling long battery life in portable GSM/GPRS handsets and wireless peripherals.
For engineers reviewing the AP7115-25WG-7 datasheet, AP7115-25WG-7 pinout, AP7115-25WG-7 application, or AP7115-25WG-7 equivalent, key selection criteria include dropout voltage at full load (200mV typ.), EN-controlled enable/disable functionality, BP pin bypass capacitor requirement (0.1µF), and SOT25 package thermal resistance (θJA = 200°C/W).
Technical Context
The AP7115-25WG-7 uses a PMOS pass transistor architecture enabling ultra-low dropout (200mV at 150mA) and near-zero gate-drive current, minimizing IQ contribution. Its bandgap reference is bypassed via the BP pin to suppress noise and improve PSRR (70dB at 1kHz).
Enable logic is active-high with VIH,EN ≥ 2.0V and VIL,EN ≤ 0.7V; shutdown current is 0.1µA max. Thermal shutdown activates at TJ ≈ +150°C and auto-recovers after ~30°C cooldown-critical for sustained operation in compact handheld enclosures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5V ±2% - ensures stable core/peripheral rail for 2.5V logic and RF ICs without external feedback. |
| Dropout Voltage | 200mV typ. at 150mA - enables regulation down to VIN = 2.7V, extending usable battery range in single-cell Li-ion or 3×AA systems. |
| Quiescent Current | 50µA typ. - minimizes standby power loss, critical for always-on functions in mobile devices. |
| PSRR | 70dB at 1kHz - suppresses switching noise from upstream DC/DC converters feeding the LDO input. |
| Current Limit | 200–250mA - protects against short-circuit faults while allowing brief inrush during peripheral wake-up. |
| Thermal Shutdown | Activates at +150°C junction temperature - prevents permanent damage during sustained overload or poor PCB heat sinking. |
| Input Voltage Range | 2.5V to 5.5V - compatible with Li-ion (3.0–4.2V), USB (5V), and multi-cell alkaline inputs. |
Pinout & Package
SOT25 (5-pin) surface-mount package with exposed pad not electrically connected; JEDEC MO-203AA compliant; footprint optimized for thermal dissipation on 2oz copper FR-4.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Voltage Input | Primary power entry; requires ≥1µF ceramic decoupling to GND for stability and EMI suppression. |
| 2 GND | Ground Reference | Common return path for input/output capacitors and BP bypass; must connect to low-impedance ground plane. |
| 3 EN | Enable Control | Active-high digital input; tie to VIN for always-on operation or drive with MCU GPIO for dynamic power gating. |
| 4 BP | Bandgap Bypass | Connect 0.1µF ceramic capacitor to GND to reduce output voltage noise and improve transient response. |
| 5 OUT | Voltage Output | Regulated 2.5V supply; requires ≥1µF ceramic output capacitor with ESR <1Ω for loop stability across load current (0–150mA). |
Key Features
| Feature | Design Value |
|---|---|
| Low Dropout Architecture | PMOS pass element enables 200mV dropout at full 150mA load-maximizing battery utilization in space-constrained designs. |
| Ultra-Low Quiescent Current | 50µA typical IQ supports >1-year shelf life in battery-backed IoT sensors and remote controls. |
| Integrated Protection | Current limit (250mA typ.), thermal shutdown (+150°C), and short-circuit robustness eliminate need for external fault management circuitry. |
| High PSRR & Low Noise | 70dB PSRR at 1kHz and 50µVrms output noise (10Hz–100kHz) support noise-sensitive analog/RF subsystems like ADCs and transceivers. |
| Green Packaging | SOT25 package is fully RoHS-compliant, lead-free, halogen-free, and antimony-free per Diodes Inc. definition (<900ppm Br/Cl, <1000ppm Sb). |
Applications
| GSM/GPRS Handset Power Rail | Wireless Peripheral Core Supply |
|---|---|
|
Use Scenario: Powers baseband processor I/O and SIM interface in dual-mode GSM/GPRS mobile phones operating from single-cell Li-ion battery (3.0–4.2V). IC Role / Device Role / Timing Role: Primary 2.5V LDO delivering clean, regulated voltage with fast load transient response to handle burst transmission current spikes. Use Value: 200mV dropout extends usable battery voltage down to 2.7V, adding ~8% runtime vs. higher-dropout alternatives; 50µA IQ preserves standby time. |
Use Scenario: Supplies 2.5V core voltage to Bluetooth/Wi-Fi module in USB-powered dongles and PC card adapters. IC Role / Device Role / Timing Role: Post-regulator after buck converter; provides low-noise, high-PSRR rail decoupled from noisy switcher output. Use Value: 70dB PSRR at 1kHz attenuates switching ripple; BP-bypassed bandgap reduces output noise to 50µVrms-ensuring reliable RF link margin. |
| Battery-Powered Industrial Sensor Node | CD-ROM/DVD Drive Logic Supply |
|
Use Scenario: Powers microcontroller and analog front-end in wireless sensor node powered by two AA alkaline cells (2.4–3.2V). IC Role / Device Role / Timing Role: Main system LDO with EN pin controlled by MCU to gate power to peripherals during sleep cycles. Use Value: 0.1µA shutdown current eliminates leakage during deep-sleep mode; ±2% output accuracy maintains ADC reference integrity across temperature. |
Use Scenario: Generates 2.5V logic rail for servo control and interface ICs in optical disc drives using 5V USB or ATX supply. IC Role / Device Role / Timing Role: Local point-of-load regulator isolating sensitive logic from motor driver noise and supply transients. Use Value: Thermal shutdown prevents latch-up during disc spin-up surges; 150mA rating supports peak servo actuator current without dropout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP7315-25SG-7 | Successor device with improved thermal performance (θJA = 180°C/W), lower dropout (180mV), and same 2.5V output; pin-compatible but not drop-in due to different BP pin behavior. | Recommended for new designs requiring extended thermal margin or tighter load regulation; not suitable for legacy AP7115 layouts relying on BP noise filtering. | Select AP7315-25SG-7 when designing new products where lifecycle longevity and thermal headroom are prioritized over exact AP7115 footprint reuse. |
| MCP1700T-2502E/MB | Microchip 2.5V LDO with 2.3µA IQ, 6V max input, and 250mA current limit-but uses NMOS pass device (higher dropout: 600mV at 250mA) and no BP pin. | Better for ultra-low-power always-on monitoring; unsuitable for high-current or low-input-voltage scenarios where AP7115's 200mV dropout is essential. | Choose MCP1700T-2502E/MB only if quiescent current <5µA is mandatory and input voltage remains ≥3.1V; avoid where VIN may dip below 2.7V. |
Compared with AP7315-25SG-7, the AP7115-25WG-7 offers proven reliability in legacy handheld designs but lacks thermal margin for high-density PCBs; versus MCP1700T-2502E/MB, it delivers superior dropout and load regulation at the cost of higher IQ-making it optimal for mid-power portable applications balancing runtime and size.
Availability
AP7115-25WG-7 is available at Aetrix Electronics and suitable for GSM/GPRS handsets, wireless peripherals, and battery-powered industrial sensors requiring stable component supply with known thermal and electrical behavior.
Supply support for AP7115-25WG-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 consumer, industrial, and communications markets.
The AP7115 belongs to Diodes' precision LDO family designed specifically for battery-powered portable electronics-emphasizing low IQ, low dropout, and integrated protection in miniature packages.
FAQ
What is the minimum input voltage required for regulation at 150mA output?
The AP7115-25WG-7 requires VIN ≥ VOUT + VDO = 2.5V + 0.2V = 2.7V to maintain regulation at full 150mA load. Below this, output voltage collapses linearly with input; datasheet specifies guaranteed operation from 2.5V input only at reduced loads (e.g., 50mA).
Can the BP pin be left floating or tied directly to OUT?
No-BP must be connected to GND via a 0.1µF ceramic capacitor. Floating BP degrades PSRR and increases output noise; tying BP to OUT creates instability and violates internal biasing, risking oscillation or thermal runaway per datasheet Application Note section.
Is the AP7115-25WG-7 pin-compatible with the AP7315-25SG-7?
Yes-both use identical SOT25 pinout (IN, GND, EN, BP, OUT). However, BP functionality differs: AP7315 uses BP for internal compensation tuning, not noise filtering. Using AP7315 in an AP7115 layout with 0.1µF BP-to-GND may cause instability or degraded transient response.
What is the maximum allowable power dissipation at +85°C ambient?
Using θJA = 200°C/W and TJ(MAX) = +125°C, PD(MAX) = (125 − 85) / 200 = 0.2W (200mW). At 150mA load and 2.5V output, VIN must stay ≤ 3.83V to keep (VIN − 2.5) × 0.15 ≤ 0.2W-exceeding this risks thermal shutdown.
AP7115-25WG-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):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.3V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 80 µA
- Current - Supply (Max):
- -
- PSRR:
- 70dB (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
AP7115-25WG-7 FAQ
1.How can I place an order for AP7115-25WG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7115-25WG-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 AP7115-25WG-7 reliable?
The price and inventory of AP7115-25WG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7115-25WG-7 is usually 5 days.
3.What payment methods are accepted for AP7115-25WG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7115-25WG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7115-25WG-7?
AP7115-25WG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7115-25WG-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 AP7115-25WG-7?
For technical support, including AP7115-25WG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7115-25WG-7 requirements.
6.How does Aetrix verify that AP7115-25WG-7 is sourced from the original manufacturer or authorized distributors?
All AP7115-25WG-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 AP7115-25WG-7 meets industry standards.
7.What is the process for return or replacement of AP7115-25WG-7?
All AP7115-25WG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7115-25WG-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 AP7115-25WG-7 part is unused and in its original packaging.
Return procedure for AP7115-25WG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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