My Inquiry
My Account
Diodes Incorporated AP7115-15SEG-7
- Part No.:
- AP7115-15SEG-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
AP7115-15SEG-7.pdf
- Description:
- IC REG LINEAR 1.5V 150MA SOT353
- Quantity:
- Payment:
- Shipping:
Inventory:2,301
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AP7115-15SEG-7 from Diodes Incorporated is a 150mA fixed-output (1.5V) low-dropout linear regulator in SOT353 package, featuring 200mV dropout at full load, 50µA quiescent current, ±2% output voltage accuracy, and integrated thermal shutdown and current-limit protection. It serves as a power management IC for battery-powered portable electronics requiring stable, low-noise 1.5V supply under variable load and input conditions.
For engineers reviewing the AP7115-15SEG-7 datasheet, AP7115-15SEG-7 pinout, AP7115-15SEG-7 application, or AP7115-15SEG-7 equivalent, key selection criteria include dropout performance at 150mA, EN-controlled enable/disable functionality, BP-pin bypass capability for noise reduction, and SOT353 thermal resistance (θJA = 337°C/W) in space-constrained designs.
Technical Context
The AP7115-15SEG-7 employs a PMOS pass element with bandgap-referenced error amplifier control, enabling precise 1.5V regulation across 2.5–5.5V input range. Its shutdown logic responds to TTL-compatible EN pin (VIH ≥ 2.0V, VIL ≤ 0.7V), and BP pin accepts 0.1µF capacitor to suppress reference noise.
Protection circuitry includes foldback current limiting (200–250mA typ.), thermal shutdown activation at +150°C, and short-circuit survival without damage. PSRR reaches 70dB at 1kHz, and load regulation is 0.003–0.006%/mA over 1–150mA output range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5V ±2% - ensures stable core voltage for 1.5V logic or analog subsystems |
| Dropout Voltage | 200mV typ. at 150mA - enables operation down to 1.7V input, extending battery runtime |
| Quiescent Current | 50µA typ. - minimizes standby power loss in always-on portable devices |
| Input Voltage Range | 2.5V to 5.5V - supports single-cell Li-ion, Li-poly, or dual-cell alkaline inputs |
| PSRR | 70dB at 1kHz - suppresses switching noise from upstream DC/DC converters |
| Thermal Shutdown | Activates at +150°C - prevents permanent damage during sustained overload or poor PCB heatsinking |
| EN Pin Threshold | VIH ≥ 2.0V, VIL ≤ 0.7V - compatible with 1.8V/3.3V GPIO for host-controlled power sequencing |
Pinout & Package
SOT353 (5-pin, 2.15mm × 1.30mm × 0.90mm) surface-mount package with exposed pad not electrically connected; θJA = 337°C/W on FR-4 with minimum recommended copper area.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Voltage Input | Accepts 2.5–5.5V unregulated supply; requires 1µF ceramic decoupling to GND |
| 2 GND | Ground Reference | Primary return path for load current and internal bias; must connect to low-impedance ground plane |
| 3 EN | Enable Control | Active-high digital input; drives regulator ON/OFF; tie to VIN if unused |
| 4 BP | Bandgap Bypass | Connects 0.1µF capacitor to GND to reduce output voltage noise by stabilizing internal reference |
| 5 OUT | Voltage Output | Delivers regulated 1.5V; requires ≥1µF ceramic output capacitor with ESR <1Ω for stability |
Key Features
| Feature | Design Value |
|---|---|
| Low Dropout Architecture | 200mV @ 150mA enables >90% efficiency at 1.7V input for 1.5V output |
| Enable-Controlled Power Sequencing | EN pin allows synchronized startup/shutdown with system controller or PMIC |
| Bandgap Bypass Capability | BP pin supports 0.1µF capacitor to lower output noise to 50µVrms (10Hz–100kHz) |
| Integrated Protection | Current limit (200–250mA), thermal shutdown (+150°C), and short-circuit survival prevent field failures |
| Green Packaging | SOT353 package is halogen-free, antimony-free, and fully RoHS-compliant (Pb-free) |
Applications
| Wireless Handheld Devices | GSM/GPRS Modems |
|---|---|
|
Use Scenario: Powering baseband processor I/O banks and RF front-end bias rails in compact cellular handsets. IC Role / Device Role / Timing Role: Primary 1.5V LDO supplying noise-sensitive analog sections and digital I/O interfaces. Use Value: 70dB PSRR rejects switching noise from PMIC DC/DC converters; 50µA IQ extends talk time between charges. |
Use Scenario: Regulating 1.5V supply for GSM transceiver ICs and SIM card interface circuitry. IC Role / Device Role / Timing Role: Standby-power-optimized LDO delivering stable voltage during burst transmission and deep-sleep modes. Use Value: 200mV dropout allows operation down to 1.7V battery voltage; EN pin enables modem sleep-state power gating. |
| CD/DVD Drive Controllers | Notebook Peripheral Cards |
|
Use Scenario: Providing clean 1.5V rail for servo motor drivers and laser diode bias circuits in optical storage modules. IC Role / Device Role / Timing Role: Low-noise local regulator isolating analog control paths from noisy digital logic supplies. Use Value: BP-bypassed bandgap reduces output noise to 50µVrms, minimizing jitter in precision analog feedback loops. |
Use Scenario: Supplying 1.5V to USB-to-SATA bridge ICs and PCIe endpoint controllers on mini-PCIe add-in cards. IC Role / Device Role / Timing Role: Compact-area LDO meeting tight board space constraints while supporting hot-plug sequencing. Use Value: SOT353 footprint (2.15mm × 1.30mm) saves >40% board area vs. SOT23; EN pin enables enumeration-controlled power-up. |
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 |
|---|---|---|---|
| AP7315-15SG-7 | Successor device with improved PSRR (75dB), lower IQ (35µA), and same SOT353 package | Designed for new designs; supports tighter load regulation (0.002%/mA) and wider temperature range (−40°C to +105°C) | Select AP7315-15SG-7 for new designs requiring lower quiescent current and enhanced noise immunity |
| MCP1700T-1502E/TT | Microchip 150mA LDO in SOT23-5; 175mV dropout, 1.6µA IQ, but no EN or BP pins | Lacks enable control and bandgap bypass; suited for always-on, ultra-low-IQ applications only | Choose MCP1700T-1502E/TT only when EN/BP functionality is unnecessary and sub-2µA standby is critical |
Compared with AP7315-15SG-7, the AP7115-15SEG-7 offers proven field reliability but higher IQ and lower PSRR; versus MCP1700T-1502E/TT, it provides essential EN/BP features at the cost of higher standby current-making it optimal for legacy designs needing controllable, low-noise 1.5V regulation.
Availability
AP7115-15SEG-7 is available at Aetrix Electronics and suitable for wireless handheld devices, GSM/GPRS modems, CD/DVD drive controllers, and notebook peripheral cards requiring stable component supply with long-term industrial availability.
Supply support for AP7115-15SEG-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 AP7115 belongs to Diodes' low-quiescent-current LDO family, engineered specifically for battery-powered portable electronics where dropout performance, noise suppression, and enable-controlled power sequencing are critical.
FAQ
What is the maximum allowable input voltage for AP7115-15SEG-7?
The absolute maximum input voltage is 5.5V. Operation above this level risks permanent damage to the internal PMOS pass transistor and bandgap reference circuit. Recommended operating range is 2.5V to 5.5V, with dropout performance optimized above 1.7V input for 1.5V output.
Can the BP pin be left floating or tied directly to GND?
No-BP must be connected to a 0.1µF ceramic capacitor between BP and GND. Floating BP degrades output voltage noise performance (increasing RMS noise from 50µV to >100µV); direct GND connection disables the internal bandgap bypass path and may cause instability or increased drift.
Is AP7115-15SEG-7 pin-compatible with AP7315-15SG-7?
Yes-both use identical SOT353 package with matching pinout (IN, GND, EN, BP, OUT). However, AP7315-15SG-7 requires updated layout for improved thermal performance and has different EN threshold tolerances; firmware-level enable timing should be verified during migration.
What is the minimum output capacitance required for stability?
A minimum of 1µF X5R/X7R ceramic capacitor is required at the OUT pin. The capacitor must have ESR ≤ 1Ω across 10Hz–100kHz; lower ESR improves transient response but excessively low ESR (<0.1Ω) may induce oscillation without additional series resistance per Diodes' application note.
AP7115-15SEG-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- 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):
- 1.5V
- 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-353
AP7115-15SEG-7 FAQ
1.How can I place an order for AP7115-15SEG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP7115-15SEG-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 AP7115-15SEG-7 reliable?
The price and inventory of AP7115-15SEG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP7115-15SEG-7 is usually 5 days.
3.What payment methods are accepted for AP7115-15SEG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP7115-15SEG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP7115-15SEG-7?
AP7115-15SEG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP7115-15SEG-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 AP7115-15SEG-7?
For technical support, including AP7115-15SEG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP7115-15SEG-7 requirements.
6.How does Aetrix verify that AP7115-15SEG-7 is sourced from the original manufacturer or authorized distributors?
All AP7115-15SEG-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 AP7115-15SEG-7 meets industry standards.
7.What is the process for return or replacement of AP7115-15SEG-7?
All AP7115-15SEG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP7115-15SEG-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 AP7115-15SEG-7 part is unused and in its original packaging.
Return procedure for AP7115-15SEG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP7115-15SEG-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
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…
Engineering guide to output capacitor selection for ASIC Vcore rails, covering bulk capacitors, polymer capacitors, MLCC decoupling, DC bias, ESR, ESL, placement, transient response and substitution ri…
Engineering guide to high-current ASIC Vcore rails, covering 12-phase buck architecture, PMBus control, dynamic load testing, output capacitor networks, smart power stage selection, thermal design and …
Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.
Amplifier guide covering voltage, current and power amplification, gain, feedback, amplifier classes, audio and RF applications, op-amp circuits, transimpedance amplifiers, datasheet selection and trou…
